| Anaheim Angels, see Los Angeles Angels |
1 | Arizona Diamondbacks | 1998 | 2024 | 4,207 | 2,047 | 2,160 | .487 | -113 | 5 | 2 | 1 | 7 | 610 | 2 | 19,101 | 143,528 | 36,525 | 4,436 | .254 | 19,467 | 4.27 |
2 | Atlanta Braves | 1876 | 2024 | 22,150 | 11,078 | 10,918 | .504 | 160 | 23 | 18 | 4 | 29 | 2120 | 54 | 99,028 | 758,408 | 197,028 | 14,901 | .260 | 97,547 | 3.67 |
| Also played as Milwaukee Braves, Boston Braves, Boston Bees, Boston, Boston Doves, Boston Nationals and Boston Reds |
3 | Baltimore Orioles | 1901 | 2024 | 19,248 | 9,087 | 10,051 | .475 | -964 | 10 | 7 | 3 | 15 | 1971 | 34 | 83,109 | 653,858 | 168,797 | 14,293 | .258 | 88,495 | 4.05 |
| Also played as St. Louis Browns and Milwaukee Brewers |
| Boston Braves, see Atlanta Braves |
4 | Boston Red Sox | 1901 | 2024 | 19,234 | 9,927 | 9,224 | .518 | 703 | 10 | 14 | 9 | 25 | 1937 | 39 | 89,836 | 658,272 | 175,723 | 14,461 | .267 | 86,213 | 3.92 |
| Also played as Boston Americans |
| Brooklyn Dodgers, see Los Angeles Dodgers |
| California Angels, see Los Angeles Angels |
5 | Chicago Cubs | 1876 | 2024 | 22,191 | 11,291 | 10,739 | .513 | 552 | 8 | 17 | 3 | 21 | 2238 | 46 | 102,109 | 759,395 | 198,909 | 15,114 | .262 | 98,656 | 3.70 |
| Also played as Chicago, Chicago Orphans, Chicago Colts and Chicago White Stockings |
6 | Chicago White Sox | 1901 | 2024 | 19,245 | 9,580 | 9,562 | .500 | 18 | 6 | 6 | 3 | 11 | 1894 | 34 | 83,728 | 651,758 | 169,366 | 12,201 | .260 | 83,695 | 3.80 |
7 | Cincinnati Reds | 1882 | 2024 | 21,774 | 10,904 | 10,731 | .504 | 173 | 10 | 10 | 5 | 16 | 2157 | 37 | 97,732 | 741,987 | 193,411 | 14,206 | .261 | 96,963 | 3.77 |
| Also played as Cincinnati Redlegs and Cincinnati |
8 | Cleveland Guardians | 1901 | 2024 | 19,246 | 9,818 | 9,337 | .513 | 481 | 11 | 6 | 2 | 16 | 1999 | 35 | 87,077 | 656,130 | 173,809 | 13,791 | .265 | 84,841 | 3.83 |
| Also played as Cleveland Indians, Cleveland Naps, Cleveland Napoleons, Cleveland Blues and Cleveland |
9 | Colorado Rockies | 1993 | 2024 | 4,955 | 2,294 | 2,661 | .463 | -367 | 0 | 1 | 0 | 5 | 668 | 2 | 24,632 | 170,302 | 46,158 | 5,611 | .271 | 26,302 | 5.01 |
10 | Detroit Tigers | 1901 | 2024 | 19,271 | 9,637 | 9,541 | .503 | 96 | 7 | 11 | 4 | 16 | 1796 | 24 | 88,493 | 657,246 | 173,720 | 14,457 | .264 | 88,314 | 4.00 |
11 | Houston Astros | 1962 | 2024 | 9,914 | 4,971 | 4,938 | .502 | 33 | 13 | 5 | 2 | 17 | 994 | 10 | 42,283 | 336,458 | 85,765 | 8,301 | .255 | 41,619 | 3.80 |
| Also played as Houston Colt .45s |
| Kansas City Athletics, see Oakland Athletics |
12 | Kansas City Royals | 1969 | 2024 | 8,768 | 4,174 | 4,592 | .476 | -418 | 8 | 4 | 2 | 9 | 1004 | 4 | 38,380 | 299,964 | 78,831 | 6,903 | .263 | 40,568 | 4.27 |
13 | Los Angeles Angels | 1961 | 2024 | 10,073 | 4,999 | 5,071 | .496 | -72 | 9 | 1 | 1 | 10 | 1223 | 12 | 43,634 | 341,863 | 87,593 | 9,085 | .256 | 44,217 | 4.00 |
| Also played as Los Angeles Angels of Anaheim, Anaheim Angels and California Angels |
14 | Los Angeles Dodgers | 1884 | 2024 | 21,574 | 11,390 | 10,045 | .531 | 1345 | 21 | 25 | 7 | 37 | 1964 | 53 | 97,286 | 735,109 | 192,056 | 13,951 | .261 | 91,171 | 3.53 |
| Also played as Brooklyn Dodgers, Brooklyn Robins, Brooklyn Superbas, Brooklyn Grooms, Brooklyn and Brooklyn Bridegrooms |
15 | Miami Marlins | 1993 | 2024 | 4,946 | 2,274 | 2,672 | .460 | -398 | 0 | 2 | 2 | 4 | 742 | 5 | 20,791 | 168,087 | 42,824 | 4,492 | .255 | 22,898 | 4.29 |
| Also played as Florida Marlins |
| Milwaukee Braves, see Atlanta Braves |
16 | Milwaukee Brewers | 1969 | 2024 | 8,777 | 4,270 | 4,503 | .487 | -233 | 6 | 1 | 0 | 9 | 1046 | 7 | 38,994 | 297,999 | 76,373 | 8,587 | .256 | 39,865 | 4.15 |
| Also played as Seattle Pilots |
| Milwaukee Brewers (1901), see Baltimore Orioles |
17 | Minnesota Twins | 1901 | 2024 | 19,257 | 9,231 | 9,917 | .482 | -686 | 13 | 6 | 3 | 18 | 1816 | 29 | 84,705 | 656,991 | 172,379 | 11,903 | .262 | 87,918 | 3.99 |
| Also played as Washington Senators and Washington Nationals |
| Montreal Expos, see Washington Nationals |
| New York Giants, see San Francisco Giants |
18 | New York Mets | 1962 | 2024 | 9,905 | 4,776 | 5,121 | .483 | -345 | 6 | 5 | 2 | 10 | 1244 | 16 | 40,823 | 335,174 | 83,774 | 8,440 | .250 | 41,710 | 3.81 |
19 | New York Yankees | 1903 | 2024 | 18,950 | 10,742 | 8,120 | .570 | 2622 | 20 | 40 | 27 | 58 | 1803 | 47 | 92,034 | 645,897 | 171,512 | 17,144 | .266 | 79,026 | 3.65 |
| Also played as New York Highlanders |
20 | Oakland Athletics | 1901 | 2024 | 19,211 | 9,297 | 9,827 | .486 | -530 | 17 | 15 | 9 | 29 | 2108 | 41 | 84,846 | 651,154 | 167,647 | 14,007 | .257 | 87,819 | 4.00 |
| Also played as Kansas City Athletics and Philadelphia Athletics |
| Philadelphia Athletics, see Oakland Athletics |
21 | Philadelphia Phillies | 1883 | 2024 | 21,582 | 10,174 | 11,293 | .474 | -1119 | 12 | 8 | 2 | 16 | 2183 | 37 | 95,809 | 738,469 | 192,310 | 14,062 | .260 | 101,557 | 3.98 |
| Also played as Philadelphia Phils and Philadelphia |
22 | Pittsburgh Pirates | 1882 | 2024 | 21,732 | 10,811 | 10,781 | .501 | 30 | 9 | 9 | 5 | 17 | 2139 | 40 | 96,757 | 744,489 | 196,070 | 12,158 | .263 | 96,892 | 3.76 |
| Also played as Pittsburgh and Allegheny City |
23 | San Diego Padres | 1969 | 2024 | 8,783 | 4,084 | 4,697 | .465 | -613 | 5 | 2 | 0 | 7 | 1154 | 13 | 35,534 | 296,901 | 73,990 | 7,137 | .249 | 38,484 | 3.97 |
24 | San Francisco Giants | 1883 | 2024 | 21,658 | 11,508 | 9,987 | .535 | 1521 | 9 | 23 | 8 | 27 | 1943 | 57 | 100,188 | 739,261 | 194,564 | 15,457 | .263 | 92,767 | 3.58 |
| Also played as New York Giants and New York |
25 | Seattle Mariners | 1977 | 2024 | 7,487 | 3,566 | 3,919 | .476 | -353 | 3 | 0 | 0 | 5 | 1007 | 7 | 33,221 | 255,462 | 65,722 | 7,589 | .257 | 34,930 | 4.30 |
| Seattle Pilots, see Milwaukee Brewers |
| St. Louis Browns, see Baltimore Orioles |
26 | St. Louis Cardinals | 1882 | 2024 | 21,773 | 11,252 | 10,369 | .520 | 883 | 15 | 23 | 11 | 32 | 2218 | 50 | 99,841 | 746,385 | 198,311 | 13,048 | .266 | 95,891 | 3.69 |
| Also played as St. Louis and St. Louis Browns |
27 | Tampa Bay Rays | 1998 | 2024 | 4,204 | 2,059 | 2,145 | .490 | -86 | 4 | 2 | 0 | 9 | 611 | 2 | 18,758 | 143,011 | 36,373 | 4,391 | .254 | 19,236 | 4.24 |
| Also played as Tampa Bay Devil Rays |
28 | Texas Rangers | 1961 | 2024 | 10,060 | 4,786 | 5,268 | .476 | -482 | 7 | 3 | 1 | 9 | 1253 | 10 | 45,341 | 343,522 | 88,704 | 10,072 | .258 | 47,359 | 4.28 |
| Also played as Washington Senators |
29 | Toronto Blue Jays | 1977 | 2024 | 7,486 | 3,731 | 3,752 | .499 | -21 | 6 | 2 | 2 | 10 | 927 | 10 | 34,658 | 256,528 | 66,756 | 8,146 | .260 | 34,266 | 4.22 |
30 | Washington Nationals | 1969 | 2024 | 8,773 | 4,238 | 4,531 | .483 | -293 | 5 | 1 | 1 | 6 | 1057 | 10 | 36,762 | 296,780 | 75,334 | 7,500 | .254 | 38,125 | 3.94 |
| Also played as Montreal Expos |
| Washington Senators/Nationals (1901-1960), see Minnesota Twins |
| Washington Senators (1961-1971), see Texas Rangers |
Inactive Franchises