Results: The Most Detailed Maps of the Iowa Republican Caucuses
Former president Donald J. Trump won the Iowa caucuses on Monday, with The Associated Press calling the race for Mr. Trump less than an hour after caucusing began. The state Republican party reported precinct-level results, the most detailed vote data available for the first 2024 presidential election contest.
The map above shows the leading candidate in each precinct. It is shaded according to the number of votes per square mile for that candidate, meaning sparsely populated areas where fewer caucusgoers live are lighter, and denser areas are darker.
How the top three candidates finished in every precinct
Here’s another way to look at the results for the top three candidates — Mr. Trump, Gov. Ron DeSantis of Florida and Nikki Haley, the former South Carolina governor. The maps below show precincts shaded according to each candidate’s share of the vote.
How Republicans voted in different kinds of areas
This table shows the leading candidate in precincts that have reported votes, based on the demographics of those areas. Mr. Trump won handily, though his winning margin differed widely in different areas.
Precincts in … | Leader margin | Avg. vote share |
---|---|---|
Lower income areas | — | — |
Higher income areas | — | — |
Areas with fewer college graduates | — | — |
Areas with more college graduates | — | — |
Rural areas | — | — |
Suburban areas | — | — |
Urban areas | — | — |
Trump’s support
Mr. Trump improved significantly on his performance in the Iowa caucuses in 2016, when he received 24.3 percent of the vote, losing to Ted Cruz, who received 27.6 percent. Mr. Trump gained ground in many kinds of areas, but most of all in areas with lower average incomes and fewer college graduates.
Each dot in the charts below represents a single caucus precinct. The dots are positioned on the charts based on the percentage of the vote the candidate received in that precinct.
Mr. Trump’s strength on Monday cut across many different kinds of areas. His lead was most pronounced in areas with fewer college-educated voters.
DeSantis’s support
Mr. DeSantis finished a distant second, trailing Mr. Trump by double digits. Mr. DeSantis has not found consistent pockets of support among key demographic groups, despite campaigning in all 99 Iowa counties, and earning the endorsement of key state officials and religious leaders.
Haley’s support
Ms. Haley performed best in areas that are wealthier and those that have a higher concentration of college-educated voters. These include precincts that surround cities like Des Moines and Iowa City.