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Black Hawk County, Iowa: Difference between revisions

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{{short description|County in Iowa, United States}}
{{Use mdy dates|date=April 2024}}{{Use American English|date=July 2022}}
{{Infobox U.S. county
{{Infobox U.S. county
| county = Black Hawk County
| county = Black Hawk County
| ex image = Black Hawk County Courthouse in Waterloo IA.JPG
| ex image = Black Hawk County Courthouse in Waterloo IA.JPG
| ex image size = 250px
| ex image size = 250px
| ex image cap = Black Hawk County Courthouse in Waterloo
| ex image cap = [[Black Hawk County Courthouse (Iowa)|Black Hawk County Courthouse]] in Waterloo
| state = Iowa
| state = Iowa
| logo = File:Black_Hawk_County_Logo.png
| seal =
| founded year = 1843
| founded year = 1843
| founded date =
| founded date =
| seat wl = Waterloo
| seat wl = Waterloo
| largest city wl = Waterloo
| largest city wl = Waterloo
| area_total_sq_mi = 573
| area_total_sq_mi = 573
| area_land_sq_mi = 566
| area_land_sq_mi = 566
| area_water_sq_mi = 6.9
| area_water_sq_mi = 6.9
| area percentage = 1.2
| area percentage = 1.2
| population_as_of = 2020
| population_as_of = 2020
| population_total = 131144
| population_total = 131144
| population_density_sq_mi = auto
| population_density_sq_mi = auto
| time zone = Central
| time zone = Central
| footnotes =
| footnotes =
| web = www.co.black-hawk.ia.us
| web = https://www.blackhawkcounty.iowa.gov/
| district = 1st
| district = 2nd
| named for = [[Black Hawk (Sauk leader)|Black Hawk]]
| named for = [[Black Hawk (Sauk leader)|Black Hawk]]
}}
}}


'''Black Hawk County''' is a [[County (United States)|county]] in the northeastern part of [[U.S. state]] of [[Iowa]]. As of the [[2020 United States Census|2020 census]], the population was 131,144,<ref>{{cite web |title=2020 Census State Redistricting Data |url=https://www2.census.gov/programs-surveys/decennial/2020/data/01-Redistricting_File--PL_94-171/Iowa/ |website=census.gov |publisher=United states Census Bureau |access-date=11 August 2020}}</ref> making it Iowa's fifth-most populous county. The [[county seat]] is [[Waterloo, Iowa|Waterloo]].<ref name="GR6">{{cite web|url=http://www.naco.org/Counties/Pages/FindACounty.aspx |access-date=June 7, 2011 |title=Find a County |publisher=National Association of Counties |url-status=dead |archive-url=https://web.archive.org/web/20110531210815/http://www.naco.org/Counties/Pages/FindACounty.aspx |archive-date=May 31, 2011 }}</ref>
'''Black Hawk County''' is a [[County (United States)|county]] in the northeastern part of [[U.S. state]] of [[Iowa]]. As of the [[2020 United States Census|2020 census]], the population was 131,144,<ref name=cen2020>{{cite web |title=2020 Census State Redistricting Data |url=https://www2.census.gov/programs-surveys/decennial/2020/data/01-Redistricting_File--PL_94-171/Iowa/ |website=census.gov |publisher=United states Census Bureau |access-date=August 12, 2021}}</ref> making it Iowa's fifth-most populous county. The [[county seat]] is [[Waterloo, Iowa|Waterloo]].<ref name="GR6">{{cite web|url=http://www.naco.org/Counties/Pages/FindACounty.aspx |access-date=June 7, 2011 |title=Find a County |publisher=National Association of Counties |url-status=dead |archive-url=https://web.archive.org/web/20110531210815/http://www.naco.org/Counties/Pages/FindACounty.aspx |archive-date=May 31, 2011}}</ref>


Black Hawk County is part of the Waterloo-[[Cedar Falls, Iowa|Cedar Falls]], IA [[Waterloo-Cedar Falls metropolitan area|Metropolitan Statistical Area]].<ref>{{cite web|url=https://www.whitehouse.gov/omb/bulletins/fy2006/b06-01.pdf|title=Update of Statistical Area Definitions and Guidance on Their Uses|access-date=2006-07-21|author=United States Office of Management and Budget|author-link=United States Office of Management and Budget|pages=5, 36.|format=PDF |url-status=dead|archive-url = https://web.archive.org/web/20060514003222/http://www.whitehouse.gov/omb/bulletins/fy2006/b06-01.pdf <!-- Bot retrieved archive --> |archive-date = 2006-05-14}}</ref>
Black Hawk County is part of the [[Waterloo – Cedar Falls metropolitan area]].<ref>{{cite web|url=https://www.whitehouse.gov/omb/bulletins/fy2006/b06-01.pdf|title=Update of Statistical Area Definitions and Guidance on Their Uses|access-date=July 21, 2006|author=United States Office of Management and Budget|author-link=United States Office of Management and Budget|pages=5, 36|url-status=dead|archive-url=https://web.archive.org/web/20060514003222/http://www.whitehouse.gov/omb/bulletins/fy2006/b06-01.pdf <!-- Bot retrieved archive --> |archive-date=May 14, 2006}}</ref>


==History==
==History==
Black Hawk County was formed on February 17, 1853 from sections of Buchanan County. It was named after [[Black Hawk (Sauk leader)|Black Hawk]], a [[Sauk people|Sauk]] leader during the 1832 [[Black Hawk War]].<ref>[http://www.co.black-hawk.ia.us/about.html Black Hawk County Online<!-- Bot generated title -->] {{webarchive |url=https://web.archive.org/web/20071013204926/http://www.co.black-hawk.ia.us/about.html |date=October 13, 2007 }}</ref>
Black Hawk County was formed on February 17, 1853, from sections of Buchanan County. It was named after [[Black Hawk (Sauk leader)|Black Hawk]], a [[Sauk people|Sauk]] leader during the 1832 [[Black Hawk War]].<ref>[http://www.co.black-hawk.ia.us/about.html Black Hawk County Online<!-- Bot generated title -->] {{webarchive |url=https://web.archive.org/web/20071013204926/http://www.co.black-hawk.ia.us/about.html |date=October 13, 2007 }}</ref>


==Geography==
==Geography==
According to the [[U.S. Census Bureau]], the county has an area of {{convert|573|sqmi}}, of which {{convert|566|sqmi}} is land and {{convert|6.9|sqmi}} (1.2%) is water.<ref name="GR1">{{cite web|url=https://www.census.gov/geographies/reference-files/time-series/geo/gazetteer-files.html|publisher=[[United States Census Bureau]]|access-date=2011-04-23|date=2011-02-12|title=US Gazetteer files: 2010, 2000, and 1990}}</ref>
According to the [[U.S. Census Bureau]], the county has an area of {{convert|573|sqmi}}, of which {{convert|566|sqmi}} is land and {{convert|6.9|sqmi}} (1.2%) is water.<ref name="GR1">{{cite web|url=https://www.census.gov/geographies/reference-files/time-series/geo/gazetteer-files.html|publisher=[[United States Census Bureau]]|access-date=April 23, 2011|date=February 12, 2011|title=US Gazetteer files: 2010, 2000, and 1990}}</ref>


The [[Cedar River (Iowa River)|Cedar River]] roughly divides the county in half from the northwest to the southeast corner. The land is mostly level since much of it is on the river's [[flood plain]].
The [[Cedar River (Iowa River)|Cedar River]] roughly divides the county in half from the northwest to the southeast corner. The land is mostly level since much of it is on the river's [[flood plain]].
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===Major highways===
===Major highways===
{{div col}}
{{div col}}
*[[File:I-380 (IA 1961).svg|25px]] [[Interstate 380 (Iowa)|Interstate 380]]
*[[File:I-380.svg|x20px]] [[Interstate 380 (Iowa)|Interstate 380]]
*[[File:US 20 (IA).svg|20px]] [[U.S. Route 20]]
*[[File:US 20.svg|x20px]] [[U.S. Route 20 in Iowa|U.S. Highway 20]]
*[[File:US 63 (IA).svg|20px]] [[U.S. Route 63]]
*[[File:US 63.svg|x20px]] [[U.S. Route 63 in Iowa|U.S. Highway 63]]
*[[File:US 218 (IA).svg|20px]] [[U.S. Route 218]]
*[[File:US 218.svg|x20px]] [[U.S. Route 218|U.S. Highway 218]]
*[[File:Iowa 21.svg|20px]] [[Iowa Highway 21]]
*[[File:Elongated circle 21.svg|x20px]] [[Iowa Highway 21]]
*[[File:Iowa 27.svg|20px]] [[Iowa Highway 27]]
*[[File:Elongated circle 27.svg|x20px]] [[Iowa Highway 27]]
*[[File:Iowa 57.svg|20px]] [[Iowa Highway 57]]
*[[File:Elongated circle 57.svg|x20px]] [[Iowa Highway 57]]
*[[File:Iowa 58.svg|20px]] [[Iowa Highway 58]]
*[[File:Elongated circle 58.svg|x20px]] [[Iowa Highway 58]]
*[[File:Iowa 175.svg|20px]] [[Iowa Highway 175]]
*[[File:Elongated circle 175.svg|x20px]] [[Iowa Highway 175]]
*[[File:Iowa 281.svg|20px]] [[Iowa Highway 281]]
*[[File:Elongated circle 281.svg|x20px]] [[Iowa Highway 281]]
{{div col end}}
{{div col end}}

===Transit===
* [[Metropolitan Transit Authority of Black Hawk County]]
* [[List of intercity bus stops in Iowa]]


===Adjacent counties===
===Adjacent counties===
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|2010= 131090
|2010= 131090
|2020= 131144
|2020= 131144
|estyear=2023
|estimate=130471
|estref=<ref name="USCensusEst2023">{{cite web|url=https://www.census.gov/programs-surveys/popest/data/tables.html|title=Annual Estimates of the Resident Population for Counties: April 1, 2020 to July 1, 2023|publisher=United States Census Bureau|access-date=April 2, 2024}}</ref>
|align-fn=center
|align-fn=center
|footnote=U.S. Decennial Census<ref>{{cite web|url=https://www.census.gov/programs-surveys/decennial-census.html|title=U.S. Decennial Census|publisher=United States Census Bureau|access-date=July 13, 2014}}</ref><br />1790-1960<ref>{{cite web|url=http://mapserver.lib.virginia.edu|title=Historical Census Browser|publisher=University of Virginia Library|access-date=July 13, 2014}}</ref> 1900-1990<ref>{{cite web|url=https://www.census.gov/population/cencounts/ia190090.txt|title=Population of Counties by Decennial Census: 1900 to 1990|publisher=United States Census Bureau|access-date=July 13, 2014}}</ref><br />1990-2000<ref>{{cite web|url=https://www.census.gov/population/www/cen2000/briefs/phc-t4/tables/tab02.pdf|title=Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000|publisher=United States Census Bureau|access-date=July 13, 2014}}</ref> 2010-2019<ref name="QF">{{cite web|title=State & County QuickFacts|url=http://quickfacts.census.gov/qfd/states/19/19013.html|publisher=United States Census Bureau|access-date=July 13, 2014|archive-url=https://www.webcitation.org/5zzh1cwMX?url=http://quickfacts.census.gov/qfd/states/19/19013.html|archive-date=July 7, 2011|url-status=dead}}</ref>
|footnote=U.S. Decennial Census<ref>{{cite web|url=https://www.census.gov/programs-surveys/decennial-census.html|title=U.S. Decennial Census|publisher=United States Census Bureau|access-date=July 13, 2014}}</ref><br />1790-1960<ref>{{cite web|url=http://mapserver.lib.virginia.edu|title=Historical Census Browser|publisher=University of Virginia Library|access-date=July 13, 2014}}</ref> 1900-1990<ref>{{cite web|url=https://www.census.gov/population/cencounts/ia190090.txt|title=Population of Counties by Decennial Census: 1900 to 1990|publisher=United States Census Bureau|access-date=July 13, 2014}}</ref><br />1990-2000<ref>{{cite web|url=https://www.census.gov/population/www/cen2000/briefs/phc-t4/tables/tab02.pdf|title=Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000|publisher=United States Census Bureau|access-date=July 13, 2014}}</ref> 2010-2019<ref name="QF">{{cite web|title=State & County QuickFacts|url=http://quickfacts.census.gov/qfd/states/19/19013.html|publisher=United States Census Bureau|access-date=July 13, 2014|archive-url=https://web.archive.org/web/20110607063810/http://quickfacts.census.gov/qfd/states/19/19013.html|archive-date=June 7, 2011|url-status=dead}}</ref>
}}
}}
[[File:BlackHawkCountyIowaPop2020.png|thumb|right|Population of Black Hawk County from US census data]]
[[File:BlackHawkCountyIowaPop2020.png|thumb|right|Population of Black Hawk County from US census data]]

===2020 census===
The 2020 census recorded a population of 131,144 in the county, with a population density of {{Pop density|131144|571.430778|sqmi|km2}}. 94.55% of the population reported being of one race. 73.49% were White, 10.43% were Black, 4.92% were Hispanic, 0.32% were Native American, 2.61% were Asian, 0.65% were Native Hawaiian or Pacific Islander and 7.57% were some other race or more than one race. There were 58,559 housing units of which 54,223 were occupied.<ref name=cen2020/>


===2010 census===
===2010 census===
The 2010 census recorded a population of 131,090 in the county, with a population density of {{Pop density|131090|567|sqmi|km2}}. There were 55,887 housing units, of which 52,470 were occupied.<ref name="USCB">{{cite web|url=http://factfinder.census.gov/faces/tableservices/jsf/pages/productview.xhtml?pid=DEC_10_PL_GCTPL2.ST05&prodType=table|archive-url=https://web.archive.org/web/20150929225050/http://factfinder.census.gov/faces/tableservices/jsf/pages/productview.xhtml?pid=DEC_10_PL_GCTPL2.ST05&prodType=table|url-status=dead|archive-date=September 29, 2015|title=Population and Housing Occupancy Status: 2010 - State -- County |publisher=[[United States Census Bureau]] American FactFinder|access-date=March 6, 2011}}</ref>
The 2010 census recorded a population of 131,090 in the county, with a population density of {{Pop density|131090|567|sqmi|km2}}. There were 55,887 housing units, of which 52,470 were occupied.<ref name="USCB">{{cite web|url=http://factfinder.census.gov/faces/tableservices/jsf/pages/productview.xhtml?pid=DEC_10_PL_GCTPL2.ST05&prodType=table|archive-url=https://web.archive.org/web/20150929225050/http://factfinder.census.gov/faces/tableservices/jsf/pages/productview.xhtml?pid=DEC_10_PL_GCTPL2.ST05&prodType=table|url-status=dead|archive-date=September 29, 2015|title=Population and Housing Occupancy Status: 2010 - State &ndash; County |publisher=[[United States Census Bureau]] American FactFinder|access-date=March 6, 2011}}</ref>


[[File:BlackHawkCountyIA2022PopPyr.png|thumb|left|2022 US Census [[population pyramid]] for Black Hawk County from [[American Community Survey|ACS]] 5-year estimates]]
===2000 census===
===2000 census===
At the [[2000 United States Census|2000 census]] there were 128,012 people, 49,683 households, and 31,946 families in the county. The population density was {{convert|226|PD/sqmi|PD/km2|sp=us|adj=off}}. There were 51,759 housing units at an average density of {{convert|91|/mi2|/km2}}. The [[Race and ethnicity in the United States Census#2000 census|racial makeup]] of the county was 88.42% [[Race (United States Census)|White]], 7.95% [[Race (United States Census)|Black]] or [[Race (United States Census)|African American]], 0.18% [[Race (United States Census)|Native American]], 0.98% [[Race (United States Census)|Asian]], 0.04% [[Race (United States Census)|Pacific Islander]], 0.93% from other races, and 1.49% from two or more races. 1.84%.<ref name="GR2">{{cite web |url=https://www.census.gov |publisher=[[United States Census Bureau]] |access-date=January 31, 2008 |title=U.S. Census website }}</ref> were [[Race (United States Census)|Hispanic]] or [[Race (United States Census)|Latino]] of any race.
[[File:USA Black Hawk County, Iowa age pyramid.svg|thumb|left|2000 Census Age Pyramid for Black Hawk County]]
At the [[2000 United States Census|2000 census]] there were 128,012 people, 49,683 households, and 31,946 families in the county. The population density was 226 people per square mile (87/km<sup>2</sup>). There were 51,759 housing units at an average density of 91 per square&nbsp;mile (35/km<sup>2</sup>). The [[Race and ethnicity in the United States Census#2000 census|racial makeup]] of the county was 88.42% [[Race (United States Census)|White]], 7.95% [[Race (United States Census)|Black]] or [[Race (United States Census)|African American]], 0.18% [[Race (United States Census)|Native American]], 0.98% [[Race (United States Census)|Asian]], 0.04% [[Race (United States Census)|Pacific Islander]], 0.93% from other races, and 1.49% from two or more races. 1.84%.<ref name="GR2">{{cite web |url=https://www.census.gov |publisher=[[United States Census Bureau]] |access-date=2008-01-31 |title=U.S. Census website }}</ref> were [[Race (United States Census)|Hispanic]] or [[Race (United States Census)|Latino]] of any race.


Of the 49,683 households 29.50% had children under the age of 18 living with them, 50.20% were married couples living together, 10.80% had a female householder with no husband present, and 35.70% were non-families. 27.10% of households were one person and 10.90% were one person aged 65 or older. The average household size was 2.45 and the average family size was 2.97.
Of the 49,683 households 29.50% had children under the age of 18 living with them, 50.20% were married couples living together, 10.80% had a female householder with no husband present, and 35.70% were non-families. 27.10% of households were one person and 10.90% were one person aged 65 or older. The average household size was 2.45 and the average family size was 2.97.


Age spread: 23.10% under the age of 18, 15.70% from 18 to 24, 25.20% from 25 to 44, 22.00% from 45 to 64, and 14.00% 65 or older. The median age was 34 years. For every 100 females, there were 92.30 males. For every 100 females age 18 and over, there were 88.80 males.
Age spread: 23.10% under the age of 18, 15.70% from 18 to 24, 25.20% from 25 to 44, 22.00% from 45 to 64, and 14.00% 65 or older. The median age was 34 years. For every 100 females, there were 92.30 males. For every 100 females age 18 and over, there were 88.80 males.


The median household income was $37,266 and the median family income was $47,398. Males had a median income of $33,138 versus $23,394 for females. The per capita income for the county was $18,885. About 7.90% of families and 13.10% of the population were below the [[poverty line]], including 14.40% of those under age 18 and 8.90% of those age 65 or over.
The median household income was $37,266 and the median family income was $47,398. Males had a median income of $33,138 versus $23,394 for females. The per capita income for the county was $18,885. About 7.90% of families and 13.10% of the population were below the [[poverty line]], including 14.40% of those under age 18 and 8.90% of those age 65 or over.


==Communities==
==Communities==
Line 147: Line 159:


===Population ranking===
===Population ranking===
The population ranking of the following table is based on the [[2010 United States census|2010 census]] of Black Hawk County.<ref>{{cite web |url=https://www.census.gov/programs-surveys/decennial-census/decade.2010.html |title=2010 Census |access-date=February 13, 2016 }}</ref>
The population ranking of the following table is based on the [[2020 United States census|2020 census]] of Black Hawk County.<ref name=cen2020/>


'''†''' ''county seat''
'''†''' ''county seat''
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!City/Town/etc.
!City/Town/etc.
!Municipal type
!Municipal type
!Population (2010 Census)
!Population (2020 Census)


|- style="background-color:#FFFACD;"
|- style="background-color:#FFFACD;"
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|'''†''' '''[[Waterloo, Iowa|Waterloo]]'''
|'''†''' '''[[Waterloo, Iowa|Waterloo]]'''
| City
| City
| 68,406
| 67,314
|- style="background-color:#FFFACD;"
|- style="background-color:#FFFACD;"
| 2
| 2
|'''[[Cedar Falls, Iowa|Cedar Falls]]'''
|'''[[Cedar Falls, Iowa|Cedar Falls]]'''
| City
| City
| 39,260
| 40,713
|- style="background-color:#FFFACD;"
|- style="background-color:#FFFACD;"
| 3
| 3
|'''[[Evansdale, Iowa|Evansdale]]'''
|'''[[Evansdale, Iowa|Evansdale]]'''
| City
| City
| 4,751
| 4,561
|- style="background-color:#FFFACD;"
|- style="background-color:#FFFACD;"
| 4
| 4
|'''[[Jesup, Iowa|Jesup]]''' (''mostly in [[Buchanan County, Iowa|Buchanan County]]'')
|'''[[Hudson, Iowa|Hudson]]'''
| City
| City
| 2,520
| 2,546
|- style="background-color:#FFFACD;"
|- style="background-color:#FFFACD;"
| 5
| 5
|'''[[La Porte City, Iowa|La Porte City]]'''
|'''[[Jesup, Iowa|Jesup]]''' (''mostly in [[Buchanan County, Iowa|Buchanan County]]'')
| City
| City
| 193 (2508 total)
| 2,285
|- style="background-color:#FFFACD;"
|- style="background-color:#FFFACD;"
| 6
| 6
|'''[[Hudson, Iowa|Hudson]]'''
|'''[[La Porte City, Iowa|La Porte City]]'''
| City
| City
| 2,282
| 2,284
|- style="background-color:#FFFACD;"
|- style="background-color:#FFFACD;"
| 7
| 7
|'''[[Elk Run Heights, Iowa|Elk Run Heights]]'''
|'''[[Elk Run Heights, Iowa|Elk Run Heights]]'''
| City
| City
| 1,117
| 1,069
|- style="background-color:#FFFACD;"
|- style="background-color:#FFFACD;"
| 8
| 8
|'''[[Janesville, Iowa|Janesville]]''' (''mostly in [[Bremer County, Iowa|Bremer County]]'')
|'''[[Janesville, Iowa|Janesville]]''' (''mostly in [[Bremer County, Iowa|Bremer County]]'')
| City
| City
| 115 (1034 total)
| 930
|- style="background-color:#F0FFF0;"
|- style="background-color:#F0FFF0;"
| 9
| 9
|'''[[Washburn, Iowa|Washburn]]'''
|'''[[Washburn, Iowa|Washburn]]'''
| CDP
| CDP
| 876
| 870
|- style="background-color:#FFFACD;"
|- style="background-color:#FFFACD;"
| 10
| 10
|'''[[Dunkerton, Iowa|Dunkerton]]'''
|'''[[Dunkerton, Iowa|Dunkerton]]'''
| City
| City
| 852
| 842
|- style="background-color:#FFFACD;"
|- style="background-color:#FFFACD;"
| 11
| 11
|'''[[Raymond, Iowa|Raymond]]'''
|'''[[Gilbertville, Iowa|Gilbertville]]'''
| City
| City
| 788
| 794
|- style="background-color:#FFFACD;"
|- style="background-color:#FFFACD;"
| 12
| 12
|'''[[Gilbertville, Iowa|Gilbertville]]'''
|'''[[Raymond, Iowa|Raymond]]'''
| City
| City
| 712
| 759
|}
|}


==Politics==
==Politics==
Black Hawk County has been a Democratic stronghold in Iowa since the late 1980s. In presidential politics, it is one of the most Democratic counties in Iowa. As the state swung hard to the right in the 2010s and 2020s, Black Hawk County -- as a major population center, in accordance with most other population centers nationwide -- has remained staunchly Democratic.
Black Hawk County has been a Democratic stronghold in Iowa since the late 1980s. In presidential politics, it is one of the most Democratic counties in Iowa. As the state swung hard to the right in the 2010s and 2020s, Black Hawk County—as a major population center, in accordance with most other population centers nationwide—has remained staunchly Democratic. In 2016, however, Donald Trump became the first Republican since 1984 to hold the Democratic candidate's margin to under 10 percent, something he repeated in 2020 albeit with reduced margins.
{{PresHead|place=Black Hawk County, Iowa|source=<ref>{{cite web|url=http://uselectionatlas.org/RESULTS|title=Dave Leip's Atlas of U.S. Presidential Elections|first=David|last=Leip|website=uselectionatlas.org|access-date=April 10, 2018}}</ref>}}
{{Hidden begin
<!-- PresRow should be {{PresRow|Year|Winning party|GOP vote #|Dem vote #|3rd party vote #|State}} -->
|titlestyle = background:#ccccff;
{{PresRow|2020|Democratic|29,640|35,647|1,306|Iowa}}
|title = Presidential Elections Results
{{PresRow|2016|Democratic|27,476|32,233|4,696|Iowa}}
}}
{{PresRow|2012|Democratic|26,235|39,821|1,085|Iowa}}
{| align="center" border="2" cellpadding="4" cellspacing="0" style="float:right; margin: 1em 1em 1em 0; border: 1px #aaa solid; border-collapse: collapse; font-size: 95%;"
{{PresRow|2008|Democratic|24,662|39,184|941|Iowa}}
|+ '''Presidential Elections Results'''<ref>{{cite web|url=http://uselectionatlas.org/RESULTS|title=Dave Leip's Atlas of U.S. Presidential Elections|first=David|last=Leip|website=uselectionatlas.org|access-date=10 April 2018}}</ref><ref>{{cite web|url=http://geoelections.free.fr/|access-date=January 13, 2021}}</ref>
{{PresRow|2004|Democratic|28,046|35,392|469|Iowa}}
|- bgcolor=lightgrey
{{PresRow|2000|Democratic|23,468|30,112|1,505|Iowa}}
! Year
{{PresRow|1996|Democratic|19,322|29,651|4,136|Iowa}}
! [[Republican Party (United States)|Republican]]
{{PresRow|1992|Democratic|21,398|29,584|10,568|Iowa}}
! [[Democratic Party (United States)|Democratic]]
{{PresRow|1988|Democratic|24,112|31,657|402|Iowa}}
! [[Third Party (United States)|Third Parties]]
{{PresRow|1984|Republican|32,262|31,467|504|Iowa}}
|-
{{PresRow|1980|Republican|29,627|27,443|6,652|Iowa}}
| style="text-align:center;" {{Party shading/Democratic}}|'''[[2020 United States presidential election|2020]]'''
{{PresRow|1976|Republican|30,994|29,508|1,213|Iowa}}
| style="text-align:center;" {{Party shading/Republican}}|44.5% ''29,640''
{{PresRow|1972|Republican|30,929|21,721|1,132|Iowa}}
| style="text-align:center;" {{Party shading/Democratic}}|'''53.5%''' ''35,647''
{{PresRow|1968|Republican|25,594|21,097|2,863|Iowa}}
| style="text-align:center; background:honeyDew;"|2.0% ''1,306''
{{PresRow|1964|Democratic|19,744|30,716|56|Iowa}}
|-
{{PresRow|1960|Republican|28,435|24,078|38|Iowa}}
| style="text-align:center;" {{Party shading/Democratic}}|'''[[2016 United States presidential election|2016]]'''
{{PresRow|1956|Republican|28,250|20,403|66|Iowa}}
| style="text-align:center;" {{Party shading/Republican}}|42.7% ''27,476''
{{PresRow|1952|Republican|28,671|17,360|203|Iowa}}
| style="text-align:center;" {{Party shading/Democratic}}|'''50.1%''' ''32,233''
{{PresRow|1948|Democratic|16,041|19,603|586|Iowa}}
| style="text-align:center; background:honeyDew;"|7.3% ''4,696''
{{PresRow|1944|Democratic|15,687|16,593|154|Iowa}}
|-
{{PresRow|1940|Democratic|17,132|17,305|95|Iowa}}
| style="text-align:center;" {{Party shading/Democratic}}|'''[[2012 United States presidential election|2012]]'''
{{PresRow|1936|Democratic|13,666|16,793|1,222|Iowa}}
| style="text-align:center;" {{Party shading/Republican}}|39.1% ''26,235''
{{PresRow|1932|Republican|14,746|14,660|359|Iowa}}
| style="text-align:center;" {{Party shading/Democratic}}|'''59.3%''' ''39,821''
{{PresRow|1928|Republican|19,409|8,467|113|Iowa}}
| style="text-align:center; background:honeyDew;"|1.6% ''1,085''
{{PresRow|1924|Republican|15,813|2,981|5,427|Iowa}}
|-
{{PresRow|1920|Republican|16,920|4,000|1,181|Iowa}}
| style="text-align:center;" {{Party shading/Democratic}}|'''[[2008 United States presidential election|2008]]'''
{{PresRow|1916|Republican|6,742|4,270|349|Iowa}}
| style="text-align:center;" {{Party shading/Republican}}|38.1% ''24,662''
{{PresRow|1912|Progressive|1,601|3,702|5,346|Iowa}}
| style="text-align:center;" {{Party shading/Democratic}}|'''60.5%''' ''39,184''
{{PresRow|1908|Republican|5,437|3,127|548|Iowa}}
| style="text-align:center; background:honeyDew;"|1.5% ''941''
{{PresRow|1904|Republican|5,236|1,861|730|Iowa}}
|-
{{PresRow|1900|Republican|5,010|2,512|259|Iowa}}
| style="text-align:center;" {{Party shading/Democratic}}|'''[[2004 United States presidential election|2004]]'''
{{PresRow|1896|Republican|4,643|2,167|220|Iowa}}
| style="text-align:center;" {{Party shading/Republican}}|43.9% ''28,046''
{{PresRow|1892|Republican|3,483|2,544|75|Iowa}}
| style="text-align:center;" {{Party shading/Democratic}}|'''55.4%''' ''35,392''
{{PresRow|1888|Republican|3,106|2,127|76|Iowa}}
| style="text-align:center; background:honeyDew;"|0.7% ''469''
{{PresRow|1884|Republican|3,153|2,084|0|Iowa}}
|-
{{PresFoot|1880|Republican|3,014|1,558|96|Iowa}}
| style="text-align:center;" {{Party shading/Democratic}}|'''[[2000 United States presidential election|2000]]'''
| style="text-align:center;" {{Party shading/Republican}}|42.6% ''23,468''
| style="text-align:center;" {{Party shading/Democratic}}|'''54.7%''' ''30,112''
| style="text-align:center; background:honeyDew;"|2.7% ''1,505''
|-
| style="text-align:center;" {{Party shading/Democratic}}|'''[[1996 United States presidential election|1996]]'''
| style="text-align:center;" {{Party shading/Republican}}|36.4% ''19,322''
| style="text-align:center;" {{Party shading/Democratic}}|'''55.8%''' ''29,651''
| style="text-align:center; background:honeyDew;"|7.8% ''4,136''
|-
| style="text-align:center;" {{Party shading/Democratic}}|'''[[1992 United States presidential election|1992]]'''
| style="text-align:center;" {{Party shading/Republican}}|34.8% ''21,398''
| style="text-align:center;" {{Party shading/Democratic}}|'''48.1%''' ''29,584''
| style="text-align:center; background:honeyDew;"|17.2% ''10,568''
|-
| style="text-align:center;" {{Party shading/Democratic}}|'''[[1988 United States presidential election|1988]]'''
| style="text-align:center;" {{Party shading/Republican}}|42.9% ''24,112''
| style="text-align:center;" {{Party shading/Democratic}}|'''56.4%''' ''31,657''
| style="text-align:center; background:honeyDew;"|0.7% ''402''
|-
| style="text-align:center;" {{Party shading/Republican}}|'''[[1984 United States presidential election|1984]]'''
| style="text-align:center;" {{Party shading/Republican}}|'''50.2%''' ''32,262''
| style="text-align:center;" {{Party shading/Democratic}}|49.0% ''31,467''
| style="text-align:center; background:honeyDew;"|0.8% ''504''
|-
| style="text-align:center;" {{Party shading/Republican}}|'''[[1980 United States presidential election|1980]]'''
| style="text-align:center;" {{Party shading/Republican}}|'''46.5%''' ''29,627''
| style="text-align:center;" {{Party shading/Democratic}}|43.1% ''27,443''
| style="text-align:center; background:honeyDew;"|10.4% ''6,652''
|-
| style="text-align:center;" {{Party shading/Republican}}|'''[[1976 United States presidential election|1976]]'''
| style="text-align:center;" {{Party shading/Republican}}|'''50.2%''' ''30,994''
| style="text-align:center;" {{Party shading/Democratic}}|47.8% ''29,508''
| style="text-align:center; background:honeyDew;"|2.0% ''1,213''
|-
| style="text-align:center;" {{Party shading/Republican}}|'''[[1972 United States presidential election|1972]]'''
| style="text-align:center;" {{Party shading/Republican}}|'''57.5%''' ''30,929''
| style="text-align:center;" {{Party shading/Democratic}}|40.4% ''21,721''
| style="text-align:center; background:honeyDew;"|2.1% ''1,132''
|-
| style="text-align:center;" {{Party shading/Republican}}|'''[[1968 United States presidential election|1968]]'''
| style="text-align:center;" {{Party shading/Republican}}|'''51.7%''' ''25,594''
| style="text-align:center;" {{Party shading/Democratic}}|42.6% ''21,097''
| style="text-align:center; background:honeyDew;"|5.8% ''2,863''
|-
| style="text-align:center;" {{Party shading/Democratic}}|'''[[1964 United States presidential election|1964]]'''
| style="text-align:center;" {{Party shading/Republican}}|39.1% ''19,744''
| style="text-align:center;" {{Party shading/Democratic}}|'''60.8%''' ''30,716''
| style="text-align:center; background:honeyDew;"|0.1% ''56''
|-
| style="text-align:center;" {{Party shading/Republican}}|'''[[1960 United States presidential election|1960]]'''
| style="text-align:center;" {{Party shading/Republican}}|'''54.1%''' ''28,435''
| style="text-align:center;" {{Party shading/Democratic}}|45.8% ''24,078''
| style="text-align:center; background:honeyDew;"|0.1% ''38''
|-
| style="text-align:center;" {{Party shading/Republican}}|'''[[1956 United States presidential election|1956]]'''
| style="text-align:center;" {{Party shading/Republican}}|'''58.0%''' ''28,250''
| style="text-align:center;" {{Party shading/Democratic}}|41.9% ''20,403''
| style="text-align:center; background:honeyDew;"|0.1% ''66''
|-
| style="text-align:center;" {{Party shading/Republican}}|'''[[1952 United States presidential election|1952]]'''
| style="text-align:center;" {{Party shading/Republican}}|'''62.0%''' ''28,671''
| style="text-align:center;" {{Party shading/Democratic}}|37.6% ''17,360''
| style="text-align:center; background:honeyDew;"|0.4% ''203''
|-
| style="text-align:center;" {{Party shading/Democratic}}|'''[[1948 United States presidential election|1948]]'''
| style="text-align:center;" {{Party shading/Republican}}|44.3% ''16,041''
| style="text-align:center;" {{Party shading/Democratic}}|'''54.1%''' ''19,603''
| style="text-align:center; background:honeyDew;"|1.6% ''586''
|-
| style="text-align:center;" {{Party shading/Democratic}}|'''[[1944 United States presidential election|1944]]'''
| style="text-align:center;" {{Party shading/Republican}}|48.4% ''15,687''
| style="text-align:center;" {{Party shading/Democratic}}|'''51.2%''' ''16,593''
| style="text-align:center; background:honeyDew;"|0.5% ''154''
|-
| style="text-align:center;" {{Party shading/Democratic}}|'''[[1940 United States presidential election|1940]]'''
| style="text-align:center;" {{Party shading/Republican}}|49.6% ''17,132''
| style="text-align:center;" {{Party shading/Democratic}}|'''50.1%''' ''17,305''
| style="text-align:center; background:honeyDew;"|0.3% ''95''
|-
| style="text-align:center;" {{Party shading/Democratic}}|'''[[1936 United States presidential election|1936]]'''
| style="text-align:center;" {{Party shading/Republican}}|43.1% ''13,666''
| style="text-align:center;" {{Party shading/Democratic}}|'''53.0%''' ''16,793''
| style="text-align:center; background:honeyDew;"|3.9% ''1,222''
|-
| style="text-align:center;" {{Party shading/Republican}}|'''[[1932 United States presidential election|1932]]'''
| style="text-align:center;" {{Party shading/Republican}}|'''49.5%''' ''14,746''
| style="text-align:center;" {{Party shading/Democratic}}|49.3% ''14,660''
| style="text-align:center; background:honeyDew;"|1.2% ''359''
|-
| style="text-align:center;" {{Party shading/Republican}}|'''[[1928 United States presidential election|1928]]'''
| style="text-align:center;" {{Party shading/Republican}}|'''69.4%''' ''19,409''
| style="text-align:center;" {{Party shading/Democratic}}|30.3% ''8,467''
| style="text-align:center; background:honeyDew;"|0.4% ''113''
|-
| style="text-align:center;" {{Party shading/Republican}}|'''[[1924 United States presidential election|1924]]'''
| style="text-align:center;" {{Party shading/Republican}}|'''65.3%''' ''15,813''
| style="text-align:center;" {{Party shading/Democratic}}|12.3% ''2,981''
| style="text-align:center; background:honeyDew;"|22.4% ''5,427''
|-
| style="text-align:center;" {{Party shading/Republican}}|'''[[1920 United States presidential election|1920]]'''
| style="text-align:center;" {{Party shading/Republican}}|'''76.6%''' ''16,920''
| style="text-align:center;" {{Party shading/Democratic}}|18.1% ''4,000''
| style="text-align:center; background:honeyDew;"|5.3% ''1,181''
|-
| style="text-align:center;" {{Party shading/Republican}}|'''[[1916 United States presidential election|1916]]'''
| style="text-align:center;" {{Party shading/Republican}}|'''59.3%''' ''6,742''
| style="text-align:center;" {{Party shading/Democratic}}|37.6% ''4,270''
| style="text-align:center; background:honeyDew;"|3.1% ''349''
|-
| style="text-align:center;" {{Party shading/Progressive}}|'''[[1912 United States presidential election|1912]]'''
| style="text-align:center;" {{Party shading/Republican}}|15.0% ''1,601''
| style="text-align:center;" {{Party shading/Democratic}}|34.8% ''3,702''
| style="text-align:center; background:honeyDew;"|'''50.2%''' ''5,346''
|-
| style="text-align:center;" {{Party shading/Republican}}|'''[[1908 United States presidential election|1908]]'''
| style="text-align:center;" {{Party shading/Republican}}|'''59.7%''' ''5,437''
| style="text-align:center;" {{Party shading/Democratic}}|34.3% ''3,127''
| style="text-align:center; background:honeyDew;"|6.0% ''548''
|-
| style="text-align:center;" {{Party shading/Republican}}|'''[[1904 United States presidential election|1904]]'''
| style="text-align:center;" {{Party shading/Republican}}|'''66.9%''' ''5,236''
| style="text-align:center;" {{Party shading/Democratic}}|23.8% ''1,861''
| style="text-align:center; background:honeyDew;"|9.3% ''730''
|-
| style="text-align:center;" {{Party shading/Republican}}|'''[[1900 United States presidential election|1900]]'''
| style="text-align:center;" {{Party shading/Republican}}|'''64.4%''' ''5,010''
| style="text-align:center;" {{Party shading/Democratic}}|32.3% ''2,512''
| style="text-align:center; background:honeyDew;"|3.3% ''259''
|-
| style="text-align:center;" {{Party shading/Republican}}|'''[[1896 United States presidential election|1896]]'''
| style="text-align:center;" {{Party shading/Republican}}|'''66.1%''' ''4,643''
| style="text-align:center;" {{Party shading/Democratic}}|30.8% ''2,167''
| style="text-align:center; background:honeyDew;"|3.1% ''220''
|-
| style="text-align:center;" {{Party shading/Republican}}|'''[[1892 United States presidential election|1892]]'''
| style="text-align:center;" {{Party shading/Republican}}|'''57.1%''' ''3,483''
| style="text-align:center;" {{Party shading/Democratic}}|41.7% ''2,544''
| style="text-align:center; background:honeyDew;"|1.2% ''75''
|-
| style="text-align:center;" {{Party shading/Republican}}|'''[[1888 United States presidential election|1888]]'''
| style="text-align:center;" {{Party shading/Republican}}|'''58.5%''' ''3,106''
| style="text-align:center;" {{Party shading/Democratic}}|40.1% ''2,127''
| style="text-align:center; background:honeyDew;"|1.4% ''76''
|-
| style="text-align:center;" {{Party shading/Republican}}|'''[[1884 United States presidential election|1884]]'''
| style="text-align:center;" {{Party shading/Republican}}|'''60.2%''' ''3,153''
| style="text-align:center;" {{Party shading/Democratic}}|39.8% ''2,084''
| style="text-align:center;|
|-
| style="text-align:center;" {{Party shading/Republican}}|'''[[1880 United States presidential election|1880]]'''
| style="text-align:center;" {{Party shading/Republican}}|'''64.6%''' ''3,014''
| style="text-align:center;" {{Party shading/Democratic}}|33.4% ''1,558''
| style="text-align:center; background:honeyDew;"|2.1% ''96''
|}
{{Hidden end}}


==See also==
==See also==
Line 442: Line 299:
|Northwest = [[Butler County, Iowa|Butler County]]
|Northwest = [[Butler County, Iowa|Butler County]]
}}
}}

{{Black Hawk County, Iowa}}
{{Black Hawk County, Iowa}}
{{Iowa}}
{{Iowa}}
{{authority control}}

{{Coord|42|28|08|N|92|18|19|W|region:US-IA_type:adm2nd_source:dewiki|display=title}}
{{Coord|42|28|08|N|92|18|19|W|region:US-IA_type:adm2nd_source:dewiki|display=title}}

{{Authority control}}


[[Category:Black Hawk County, Iowa| ]]
[[Category:Black Hawk County, Iowa| ]]

Latest revision as of 23:33, 28 June 2024

Black Hawk County
County
Black Hawk County Courthouse in Waterloo
Black Hawk County Courthouse in Waterloo
Official logo of Black Hawk County
Logo
Map of Iowa highlighting Black Hawk County
Location within the U.S. state of Iowa
Map of the United States highlighting Iowa
Iowa's location within the U.S.
Coordinates: 42°28′08″N 92°18′19″W / 42.468888888889°N 92.305277777778°W / 42.468888888889; -92.305277777778
Country United States
State Iowa
Founded1843
Named forBlack Hawk
SeatWaterloo
Largest cityWaterloo
Area
 • Total573 sq mi (1,480 km2)
 • Land566 sq mi (1,470 km2)
 • Water6.9 sq mi (18 km2)  1.2%
Population
 (2020)
 • Total131,144
 • Density230/sq mi (88/km2)
Time zoneUTC−6 (Central)
 • Summer (DST)UTC−5 (CDT)
Congressional district2nd
Websitewww.blackhawkcounty.iowa.gov

Black Hawk County is a county in the northeastern part of U.S. state of Iowa. As of the 2020 census, the population was 131,144,[1] making it Iowa's fifth-most populous county. The county seat is Waterloo.[2]

Black Hawk County is part of the Waterloo – Cedar Falls metropolitan area.[3]

History

[edit]

Black Hawk County was formed on February 17, 1853, from sections of Buchanan County. It was named after Black Hawk, a Sauk leader during the 1832 Black Hawk War.[4]

Geography

[edit]

According to the U.S. Census Bureau, the county has an area of 573 square miles (1,480 km2), of which 566 square miles (1,470 km2) is land and 6.9 square miles (18 km2) (1.2%) is water.[5]

The Cedar River roughly divides the county in half from the northwest to the southeast corner. The land is mostly level since much of it is on the river's flood plain.

Major highways

[edit]

Transit

[edit]

Adjacent counties

[edit]

Demographics

[edit]
Historical population
CensusPop.Note%±
1850135—
18608,2446,006.7%
187021,706163.3%
188023,91310.2%
189024,2191.3%
190032,39933.8%
191044,86538.5%
192056,57026.1%
193069,14622.2%
194079,94615.6%
1950100,44825.6%
1960122,48221.9%
1970132,9168.5%
1980137,9613.8%
1990123,798−10.3%
2000128,0123.4%
2010131,0902.4%
2020131,1440.0%
2023 (est.)130,471[6]−0.5%
U.S. Decennial Census[7]
1790-1960[8] 1900-1990[9]
1990-2000[10] 2010-2019[11]
Population of Black Hawk County from US census data

2020 census

[edit]

The 2020 census recorded a population of 131,144 in the county, with a population density of 229.5011/sq mi (88.6109/km2). 94.55% of the population reported being of one race. 73.49% were White, 10.43% were Black, 4.92% were Hispanic, 0.32% were Native American, 2.61% were Asian, 0.65% were Native Hawaiian or Pacific Islander and 7.57% were some other race or more than one race. There were 58,559 housing units of which 54,223 were occupied.[1]

2010 census

[edit]

The 2010 census recorded a population of 131,090 in the county, with a population density of 231.20/sq mi (89.27/km2). There were 55,887 housing units, of which 52,470 were occupied.[12]

2022 US Census population pyramid for Black Hawk County from ACS 5-year estimates

2000 census

[edit]

At the 2000 census there were 128,012 people, 49,683 households, and 31,946 families in the county. The population density was 226 inhabitants per square mile (87/km2). There were 51,759 housing units at an average density of 91 per square mile (35/km2). The racial makeup of the county was 88.42% White, 7.95% Black or African American, 0.18% Native American, 0.98% Asian, 0.04% Pacific Islander, 0.93% from other races, and 1.49% from two or more races. 1.84%.[13] were Hispanic or Latino of any race.

Of the 49,683 households 29.50% had children under the age of 18 living with them, 50.20% were married couples living together, 10.80% had a female householder with no husband present, and 35.70% were non-families. 27.10% of households were one person and 10.90% were one person aged 65 or older. The average household size was 2.45 and the average family size was 2.97.

Age spread: 23.10% under the age of 18, 15.70% from 18 to 24, 25.20% from 25 to 44, 22.00% from 45 to 64, and 14.00% 65 or older. The median age was 34 years. For every 100 females, there were 92.30 males. For every 100 females age 18 and over, there were 88.80 males.

The median household income was $37,266 and the median family income was $47,398. Males had a median income of $33,138 versus $23,394 for females. The per capita income for the county was $18,885. About 7.90% of families and 13.10% of the population were below the poverty line, including 14.40% of those under age 18 and 8.90% of those age 65 or over.

Communities

[edit]

Cities

[edit]

Census-designated place

[edit]

Other unincorporated communities

[edit]

Townships

[edit]

Black Hawk County is divided into seventeen townships:

Population ranking

[edit]

The population ranking of the following table is based on the 2020 census of Black Hawk County.[1]

† county seat

Rank City/Town/etc. Municipal type Population (2020 Census)
1 † Waterloo City 67,314
2 Cedar Falls City 40,713
3 Evansdale City 4,561
4 Hudson City 2,546
5 Jesup (mostly in Buchanan County) City 193 (2508 total)
6 La Porte City City 2,284
7 Elk Run Heights City 1,069
8 Janesville (mostly in Bremer County) City 115 (1034 total)
9 Washburn CDP 870
10 Dunkerton City 842
11 Gilbertville City 794
12 Raymond City 759

Politics

[edit]

Black Hawk County has been a Democratic stronghold in Iowa since the late 1980s. In presidential politics, it is one of the most Democratic counties in Iowa. As the state swung hard to the right in the 2010s and 2020s, Black Hawk County—as a major population center, in accordance with most other population centers nationwide—has remained staunchly Democratic. In 2016, however, Donald Trump became the first Republican since 1984 to hold the Democratic candidate's margin to under 10 percent, something he repeated in 2020 albeit with reduced margins.

United States presidential election results for Black Hawk County, Iowa[14]
Year Republican Democratic Third party
No.  % No.  % No.  %
2020 29,640 44.51% 35,647 53.53% 1,306 1.96%
2016 27,476 42.66% 32,233 50.05% 4,696 7.29%
2012 26,235 39.07% 39,821 59.31% 1,085 1.62%
2008 24,662 38.07% 39,184 60.48% 941 1.45%
2004 28,046 43.89% 35,392 55.38% 469 0.73%
2000 23,468 42.60% 30,112 54.66% 1,505 2.73%
1996 19,322 36.38% 29,651 55.83% 4,136 7.79%
1992 21,398 34.77% 29,584 48.06% 10,568 17.17%
1988 24,112 42.93% 31,657 56.36% 402 0.72%
1984 32,262 50.23% 31,467 48.99% 504 0.78%
1980 29,627 46.49% 27,443 43.07% 6,652 10.44%
1976 30,994 50.22% 29,508 47.81% 1,213 1.97%
1972 30,929 57.51% 21,721 40.39% 1,132 2.10%
1968 25,594 51.65% 21,097 42.57% 2,863 5.78%
1964 19,744 39.08% 30,716 60.80% 56 0.11%
1960 28,435 54.11% 24,078 45.82% 38 0.07%
1956 28,250 57.99% 20,403 41.88% 66 0.14%
1952 28,671 62.01% 17,360 37.55% 203 0.44%
1948 16,041 44.28% 19,603 54.11% 586 1.62%
1944 15,687 48.37% 16,593 51.16% 154 0.47%
1940 17,132 49.61% 17,305 50.11% 95 0.28%
1936 13,666 43.14% 16,793 53.01% 1,222 3.86%
1932 14,746 49.54% 14,660 49.25% 359 1.21%
1928 19,409 69.35% 8,467 30.25% 113 0.40%
1924 15,813 65.29% 2,981 12.31% 5,427 22.41%
1920 16,920 76.56% 4,000 18.10% 1,181 5.34%
1916 6,742 59.34% 4,270 37.58% 349 3.07%
1912 1,601 15.03% 3,702 34.76% 5,346 50.20%
1908 5,437 59.67% 3,127 34.32% 548 6.01%
1904 5,236 66.90% 1,861 23.78% 730 9.33%
1900 5,010 64.39% 2,512 32.28% 259 3.33%
1896 4,643 66.05% 2,167 30.83% 220 3.13%
1892 3,483 57.08% 2,544 41.69% 75 1.23%
1888 3,106 58.50% 2,127 40.06% 76 1.43%
1884 3,153 60.21% 2,084 39.79% 0 0.00%
1880 3,014 64.57% 1,558 33.38% 96 2.06%

See also

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References

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  1. ^ a b c "2020 Census State Redistricting Data". census.gov. United states Census Bureau. Retrieved August 12, 2021.
  2. ^ "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.
  3. ^ United States Office of Management and Budget. "Update of Statistical Area Definitions and Guidance on Their Uses" (PDF). pp. 5, 36. Archived from the original (PDF) on May 14, 2006. Retrieved July 21, 2006.
  4. ^ Black Hawk County Online Archived October 13, 2007, at the Wayback Machine
  5. ^ "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. February 12, 2011. Retrieved April 23, 2011.
  6. ^ "Annual Estimates of the Resident Population for Counties: April 1, 2020 to July 1, 2023". United States Census Bureau. Retrieved April 2, 2024.
  7. ^ "U.S. Decennial Census". United States Census Bureau. Retrieved July 13, 2014.
  8. ^ "Historical Census Browser". University of Virginia Library. Retrieved July 13, 2014.
  9. ^ "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. Retrieved July 13, 2014.
  10. ^ "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000" (PDF). United States Census Bureau. Retrieved July 13, 2014.
  11. ^ "State & County QuickFacts". United States Census Bureau. Archived from the original on June 7, 2011. Retrieved July 13, 2014.
  12. ^ "Population and Housing Occupancy Status: 2010 - State – County". United States Census Bureau American FactFinder. Archived from the original on September 29, 2015. Retrieved March 6, 2011.
  13. ^ "U.S. Census website". United States Census Bureau. Retrieved January 31, 2008.
  14. ^ Leip, David. "Dave Leip's Atlas of U.S. Presidential Elections". uselectionatlas.org. Retrieved April 10, 2018.
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