| Anaheim Angels, see Los Angeles Angels |
1 | Arizona Diamondbacks | 1998 | 2024 | 4,128 | 2,007 | 2,121 | .486 | -114 | 5 | 2 | 1 | 7 | 601 | 2 | 18,722 | 140,868 | 35,850 | 4,354 | .254 | 19,084 | 4.27 |
2 | Atlanta Braves | 1876 | 2024 | 22,071 | 11,036 | 10,881 | .504 | 155 | 23 | 18 | 4 | 29 | 2110 | 54 | 98,724 | 755,782 | 196,429 | 14,810 | .260 | 97,280 | 3.67 |
| Also played as Milwaukee Braves, Boston Braves, Boston Bees, Boston, Boston Doves, Boston Nationals and Boston Reds |
3 | Baltimore Orioles | 1901 | 2024 | 19,169 | 9,040 | 10,019 | .474 | -979 | 10 | 7 | 3 | 15 | 1963 | 34 | 82,735 | 651,136 | 168,113 | 14,171 | .258 | 88,176 | 4.05 |
| Also played as St. Louis Browns and Milwaukee Brewers |
| Boston Braves, see Atlanta Braves |
4 | Boston Red Sox | 1901 | 2024 | 19,157 | 9,883 | 9,191 | .518 | 692 | 10 | 14 | 9 | 25 | 1926 | 39 | 89,469 | 655,614 | 175,029 | 14,372 | .267 | 85,887 | 3.92 |
| Also played as Boston Americans |
| Brooklyn Dodgers, see Los Angeles Dodgers |
| California Angels, see Los Angeles Angels |
5 | Chicago Cubs | 1876 | 2024 | 22,110 | 11,254 | 10,695 | .513 | 559 | 8 | 17 | 3 | 21 | 2231 | 46 | 101,790 | 756,706 | 198,283 | 15,034 | .262 | 98,319 | 3.70 |
| Also played as Chicago, Chicago Orphans, Chicago Colts and Chicago White Stockings |
6 | Chicago White Sox | 1901 | 2024 | 19,163 | 9,555 | 9,505 | .501 | 50 | 6 | 6 | 3 | 11 | 1882 | 34 | 83,449 | 649,025 | 168,752 | 12,124 | .260 | 83,292 | 3.79 |
7 | Cincinnati Reds | 1882 | 2024 | 21,694 | 10,866 | 10,689 | .504 | 177 | 10 | 10 | 5 | 16 | 2146 | 37 | 97,394 | 739,392 | 192,816 | 14,117 | .261 | 96,649 | 3.77 |
| Also played as Cincinnati Redlegs and Cincinnati |
8 | Cleveland Guardians | 1901 | 2024 | 19,168 | 9,772 | 9,305 | .512 | 467 | 11 | 6 | 2 | 16 | 1990 | 35 | 86,720 | 653,582 | 173,199 | 13,700 | .265 | 84,531 | 3.83 |
| Also played as Cleveland Indians, Cleveland Naps, Cleveland Napoleons, Cleveland Blues and Cleveland |
9 | Colorado Rockies | 1993 | 2024 | 4,876 | 2,264 | 2,612 | .464 | -348 | 0 | 1 | 0 | 5 | 659 | 2 | 24,299 | 167,620 | 45,505 | 5,523 | .271 | 25,840 | 5.00 |
10 | Detroit Tigers | 1901 | 2024 | 19,191 | 9,600 | 9,498 | .503 | 102 | 7 | 11 | 4 | 16 | 1792 | 24 | 88,140 | 654,557 | 173,079 | 14,370 | .264 | 87,955 | 4.00 |
11 | Houston Astros | 1962 | 2024 | 9,837 | 4,927 | 4,905 | .501 | 22 | 13 | 5 | 2 | 17 | 984 | 10 | 41,909 | 333,821 | 85,078 | 8,213 | .255 | 41,316 | 3.80 |
| Also played as Houston Colt .45s |
| Kansas City Athletics, see Oakland Athletics |
12 | Kansas City Royals | 1969 | 2024 | 8,688 | 4,133 | 4,553 | .476 | -420 | 8 | 4 | 2 | 9 | 997 | 4 | 38,025 | 297,313 | 78,177 | 6,823 | .263 | 40,234 | 4.27 |
13 | Los Angeles Angels | 1961 | 2024 | 9,994 | 4,966 | 5,025 | .497 | -59 | 9 | 1 | 1 | 10 | 1210 | 12 | 43,329 | 339,271 | 86,988 | 9,004 | .256 | 43,831 | 4.00 |
| Also played as Los Angeles Angels of Anaheim, Anaheim Angels and California Angels |
14 | Los Angeles Dodgers | 1884 | 2024 | 21,497 | 11,346 | 10,012 | .531 | 1334 | 21 | 25 | 7 | 37 | 1955 | 53 | 96,913 | 732,482 | 191,399 | 13,848 | .261 | 90,872 | 3.53 |
| Also played as Brooklyn Dodgers, Brooklyn Robins, Brooklyn Superbas, Brooklyn Grooms, Brooklyn and Brooklyn Bridegrooms |
15 | Miami Marlins | 1993 | 2024 | 4,868 | 2,245 | 2,623 | .461 | -378 | 0 | 2 | 2 | 4 | 730 | 5 | 20,524 | 165,438 | 42,195 | 4,428 | .255 | 22,512 | 4.29 |
| Also played as Florida Marlins |
| Milwaukee Braves, see Atlanta Braves |
16 | Milwaukee Brewers | 1969 | 2024 | 8,696 | 4,225 | 4,467 | .486 | -242 | 6 | 1 | 0 | 9 | 1030 | 7 | 38,625 | 295,273 | 75,696 | 8,512 | .256 | 39,551 | 4.15 |
| Also played as Seattle Pilots |
| Milwaukee Brewers (1901), see Baltimore Orioles |
17 | Minnesota Twins | 1901 | 2024 | 19,177 | 9,183 | 9,885 | .482 | -702 | 13 | 6 | 3 | 18 | 1810 | 29 | 84,295 | 654,266 | 171,656 | 11,803 | .262 | 87,573 | 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 | 9,827 | 4,736 | 5,083 | .482 | -347 | 6 | 5 | 2 | 10 | 1233 | 16 | 40,436 | 332,476 | 83,096 | 8,336 | .250 | 41,330 | 3.80 |
19 | New York Yankees | 1903 | 2024 | 18,870 | 10,696 | 8,086 | .569 | 2610 | 20 | 40 | 27 | 58 | 1796 | 47 | 91,630 | 643,220 | 170,850 | 17,023 | .266 | 78,710 | 3.65 |
| Also played as New York Highlanders |
20 | Oakland Athletics | 1901 | 2024 | 19,131 | 9,267 | 9,777 | .487 | -510 | 17 | 15 | 9 | 29 | 2096 | 41 | 84,506 | 648,479 | 167,027 | 13,901 | .258 | 87,421 | 4.00 |
| Also played as Kansas City Athletics and Philadelphia Athletics |
| Philadelphia Athletics, see Oakland Athletics |
21 | Philadelphia Phillies | 1883 | 2024 | 21,504 | 10,122 | 11,267 | .473 | -1145 | 12 | 8 | 2 | 16 | 2179 | 37 | 95,397 | 735,790 | 191,601 | 13,962 | .260 | 101,262 | 3.99 |
| Also played as Philadelphia Phils and Philadelphia |
22 | Pittsburgh Pirates | 1882 | 2024 | 21,654 | 10,774 | 10,740 | .501 | 34 | 9 | 9 | 5 | 17 | 2131 | 40 | 96,446 | 741,880 | 195,478 | 12,075 | .263 | 96,553 | 3.76 |
| Also played as Pittsburgh and Allegheny City |
23 | San Diego Padres | 1969 | 2024 | 8,704 | 4,045 | 4,657 | .465 | -612 | 5 | 2 | 0 | 7 | 1145 | 13 | 35,195 | 294,224 | 73,292 | 7,052 | .249 | 38,144 | 3.96 |
24 | San Francisco Giants | 1883 | 2024 | 21,579 | 11,468 | 9,948 | .535 | 1520 | 9 | 23 | 8 | 27 | 1933 | 57 | 99,837 | 736,584 | 193,910 | 15,378 | .263 | 92,403 | 3.58 |
| Also played as New York Giants and New York |
25 | Seattle Mariners | 1977 | 2024 | 7,407 | 3,522 | 3,883 | .476 | -361 | 3 | 0 | 0 | 5 | 998 | 7 | 32,903 | 252,842 | 65,145 | 7,495 | .258 | 34,646 | 4.31 |
| Seattle Pilots, see Milwaukee Brewers |
| St. Louis Browns, see Baltimore Orioles |
26 | St. Louis Cardinals | 1882 | 2024 | 21,695 | 11,211 | 10,332 | .520 | 879 | 15 | 23 | 11 | 32 | 2213 | 50 | 99,510 | 743,717 | 197,646 | 12,967 | .266 | 95,528 | 3.69 |
| Also played as St. Louis and St. Louis Browns |
27 | Tampa Bay Rays | 1998 | 2024 | 4,126 | 2,021 | 2,105 | .490 | -84 | 4 | 2 | 0 | 9 | 605 | 2 | 18,460 | 140,418 | 35,764 | 4,321 | .255 | 18,892 | 4.24 |
| Also played as Tampa Bay Devil Rays |
28 | Texas Rangers | 1961 | 2024 | 9,982 | 4,749 | 5,227 | .476 | -478 | 7 | 3 | 1 | 9 | 1248 | 10 | 45,016 | 340,902 | 88,086 | 9,986 | .258 | 47,030 | 4.29 |
| Also played as Washington Senators |
29 | Toronto Blue Jays | 1977 | 2024 | 7,408 | 3,697 | 3,708 | .499 | -11 | 6 | 2 | 2 | 10 | 919 | 10 | 34,337 | 253,947 | 66,142 | 8,074 | .260 | 33,894 | 4.22 |
30 | Washington Nationals | 1969 | 2024 | 8,693 | 4,201 | 4,488 | .483 | -287 | 5 | 1 | 1 | 6 | 1051 | 10 | 36,424 | 294,131 | 74,698 | 7,436 | .254 | 37,765 | 3.94 |
| Also played as Montreal Expos |
| Washington Senators/Nationals (1901-1960), see Minnesota Twins |
| Washington Senators (1961-1971), see Texas Rangers |
Inactive Franchises