| Anaheim Angels, see Los Angeles Angels |
1 | Arizona Diamondbacks | 1998 | 2023 | 4,110 | 1,998 | 2,112 | .486 | -114 | 5 | 2 | 1 | 7 | 594 | 2 | 18,619 | 140,249 | 35,692 | 4,334 | .254 | 19,002 | 4.27 |
2 | Atlanta Braves | 1876 | 2023 | 22,055 | 11,025 | 10,876 | .503 | 149 | 23 | 18 | 4 | 29 | 2105 | 54 | 98,621 | 755,203 | 196,254 | 14,792 | .260 | 97,205 | 3.67 |
| Also played as Milwaukee Braves, Boston Braves, Boston Bees, Boston, Boston Doves, Boston Nationals and Boston Reds |
3 | Baltimore Orioles | 1901 | 2023 | 19,152 | 9,029 | 10,013 | .474 | -984 | 10 | 7 | 3 | 15 | 1956 | 34 | 82,635 | 650,541 | 167,959 | 14,144 | .258 | 88,101 | 4.05 |
| Also played as St. Louis Browns and Milwaukee Brewers |
| Boston Braves, see Atlanta Braves |
4 | Boston Red Sox | 1901 | 2023 | 19,139 | 9,874 | 9,182 | .518 | 692 | 10 | 14 | 9 | 25 | 1919 | 39 | 89,390 | 655,002 | 174,889 | 14,349 | .267 | 85,811 | 3.92 |
| Also played as Boston Americans |
| Brooklyn Dodgers, see Los Angeles Dodgers |
| California Angels, see Los Angeles Angels |
5 | Chicago Cubs | 1876 | 2023 | 22,093 | 11,244 | 10,688 | .513 | 556 | 8 | 17 | 3 | 21 | 2225 | 46 | 101,694 | 756,130 | 198,141 | 15,014 | .262 | 98,236 | 3.70 |
| Also played as Chicago, Chicago Orphans, Chicago Colts and Chicago White Stockings |
6 | Chicago White Sox | 1901 | 2023 | 19,147 | 9,553 | 9,491 | .502 | 62 | 6 | 6 | 3 | 11 | 1864 | 34 | 83,415 | 648,521 | 168,653 | 12,116 | .260 | 83,205 | 3.79 |
7 | Cincinnati Reds | 1882 | 2023 | 21,677 | 10,857 | 10,681 | .504 | 176 | 10 | 10 | 5 | 16 | 2139 | 37 | 97,300 | 738,818 | 192,679 | 14,098 | .261 | 96,569 | 3.77 |
| Also played as Cincinnati Redlegs and Cincinnati |
8 | Cleveland Guardians | 1901 | 2023 | 19,151 | 9,760 | 9,300 | .512 | 460 | 11 | 6 | 2 | 16 | 1984 | 35 | 86,623 | 652,983 | 173,044 | 13,682 | .265 | 84,472 | 3.83 |
| Also played as Cleveland Indians, Cleveland Naps, Cleveland Napoleons, Cleveland Blues and Cleveland |
9 | Colorado Rockies | 1993 | 2023 | 4,858 | 2,260 | 2,598 | .465 | -338 | 0 | 1 | 0 | 5 | 653 | 2 | 24,229 | 167,016 | 45,357 | 5,507 | .272 | 25,730 | 5.00 |
10 | Detroit Tigers | 1901 | 2023 | 19,174 | 9,590 | 9,491 | .503 | 99 | 7 | 11 | 4 | 16 | 1785 | 24 | 88,080 | 653,984 | 172,957 | 14,358 | .264 | 87,894 | 4.00 |
11 | Houston Astros | 1962 | 2023 | 9,818 | 4,921 | 4,892 | .501 | 29 | 13 | 5 | 2 | 17 | 975 | 10 | 41,826 | 333,156 | 84,899 | 8,191 | .255 | 41,211 | 3.80 |
| Also played as Houston Colt .45s |
| Kansas City Athletics, see Oakland Athletics |
12 | Kansas City Royals | 1969 | 2023 | 8,671 | 4,122 | 4,547 | .475 | -425 | 8 | 4 | 2 | 9 | 988 | 4 | 37,938 | 296,746 | 78,038 | 6,802 | .263 | 40,186 | 4.27 |
13 | Los Angeles Angels | 1961 | 2023 | 9,977 | 4,958 | 5,016 | .497 | -58 | 9 | 1 | 1 | 10 | 1205 | 12 | 43,249 | 338,682 | 86,847 | 8,984 | .256 | 43,745 | 4.00 |
| Also played as Los Angeles Angels of Anaheim, Anaheim Angels and California Angels |
14 | Los Angeles Dodgers | 1884 | 2023 | 21,477 | 11,334 | 10,004 | .531 | 1330 | 21 | 25 | 7 | 37 | 1942 | 53 | 96,807 | 731,796 | 191,214 | 13,822 | .261 | 90,780 | 3.52 |
| Also played as Brooklyn Dodgers, Brooklyn Robins, Brooklyn Superbas, Brooklyn Grooms, Brooklyn and Brooklyn Bridegrooms |
15 | Miami Marlins | 1993 | 2023 | 4,850 | 2,241 | 2,609 | .462 | -368 | 0 | 2 | 2 | 4 | 717 | 5 | 20,455 | 164,835 | 42,064 | 4,414 | .255 | 22,410 | 4.28 |
| Also played as Florida Marlins |
| Milwaukee Braves, see Atlanta Braves |
16 | Milwaukee Brewers | 1969 | 2023 | 8,680 | 4,215 | 4,461 | .486 | -246 | 6 | 1 | 0 | 9 | 1019 | 7 | 38,528 | 294,703 | 75,534 | 8,488 | .256 | 39,478 | 4.15 |
| Also played as Seattle Pilots |
| Milwaukee Brewers (1901), see Baltimore Orioles |
17 | Minnesota Twins | 1901 | 2023 | 19,161 | 9,177 | 9,875 | .482 | -698 | 13 | 6 | 3 | 18 | 1802 | 29 | 84,239 | 653,734 | 171,552 | 11,788 | .262 | 87,499 | 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 | 2023 | 9,810 | 4,727 | 5,075 | .482 | -348 | 6 | 5 | 2 | 10 | 1218 | 16 | 40,358 | 331,899 | 82,956 | 8,319 | .250 | 41,258 | 3.80 |
19 | New York Yankees | 1903 | 2023 | 18,852 | 10,684 | 8,080 | .569 | 2604 | 20 | 40 | 27 | 58 | 1781 | 47 | 91,546 | 642,628 | 170,706 | 17,004 | .266 | 78,644 | 3.65 |
| Also played as New York Highlanders |
20 | Oakland Athletics | 1901 | 2023 | 19,113 | 9,260 | 9,766 | .487 | -506 | 17 | 15 | 9 | 29 | 2085 | 41 | 84,456 | 647,889 | 166,907 | 13,885 | .258 | 87,346 | 4.00 |
| Also played as Kansas City Athletics and Philadelphia Athletics |
| Philadelphia Athletics, see Oakland Athletics |
21 | Philadelphia Phillies | 1883 | 2023 | 21,486 | 10,112 | 11,259 | .473 | -1147 | 12 | 8 | 2 | 16 | 2177 | 37 | 95,332 | 735,198 | 191,464 | 13,944 | .260 | 101,190 | 3.99 |
| Also played as Philadelphia Phils and Philadelphia |
22 | Pittsburgh Pirates | 1882 | 2023 | 21,636 | 10,763 | 10,733 | .501 | 30 | 9 | 9 | 5 | 17 | 2121 | 40 | 96,355 | 741,236 | 195,319 | 12,059 | .264 | 96,481 | 3.76 |
| Also played as Pittsburgh and Allegheny City |
23 | San Diego Padres | 1969 | 2023 | 8,684 | 4,034 | 4,648 | .465 | -614 | 5 | 2 | 0 | 7 | 1133 | 13 | 35,086 | 293,546 | 73,114 | 7,028 | .249 | 38,048 | 3.96 |
24 | San Francisco Giants | 1883 | 2023 | 21,561 | 11,461 | 9,937 | .536 | 1524 | 9 | 23 | 8 | 27 | 1921 | 57 | 99,761 | 735,984 | 193,763 | 15,361 | .263 | 92,313 | 3.58 |
| Also played as New York Giants and New York |
25 | Seattle Mariners | 1977 | 2023 | 7,389 | 3,514 | 3,873 | .476 | -359 | 3 | 0 | 0 | 5 | 985 | 7 | 32,842 | 252,259 | 65,021 | 7,480 | .258 | 34,570 | 4.31 |
| Seattle Pilots, see Milwaukee Brewers |
| St. Louis Browns, see Baltimore Orioles |
26 | St. Louis Cardinals | 1882 | 2023 | 21,677 | 11,202 | 10,323 | .520 | 879 | 15 | 23 | 11 | 32 | 2205 | 50 | 99,443 | 743,128 | 197,512 | 12,954 | .266 | 95,455 | 3.69 |
| Also played as St. Louis and St. Louis Browns |
27 | Tampa Bay Rays | 1998 | 2023 | 4,108 | 2,011 | 2,097 | .490 | -86 | 4 | 2 | 0 | 9 | 595 | 2 | 18,382 | 139,812 | 35,619 | 4,305 | .255 | 18,797 | 4.24 |
| Also played as Tampa Bay Devil Rays |
28 | Texas Rangers | 1961 | 2023 | 9,964 | 4,740 | 5,218 | .476 | -478 | 7 | 3 | 1 | 9 | 1237 | 10 | 44,927 | 340,285 | 87,925 | 9,971 | .258 | 46,954 | 4.29 |
| Also played as Washington Senators |
29 | Toronto Blue Jays | 1977 | 2023 | 7,390 | 3,687 | 3,700 | .499 | -13 | 6 | 2 | 2 | 10 | 914 | 10 | 34,268 | 253,365 | 66,008 | 8,060 | .261 | 33,810 | 4.22 |
30 | Washington Nationals | 1969 | 2023 | 8,676 | 4,194 | 4,478 | .484 | -284 | 5 | 1 | 1 | 6 | 1041 | 10 | 36,360 | 293,569 | 74,566 | 7,420 | .254 | 37,685 | 3.94 |
| Also played as Montreal Expos |
| Washington Senators/Nationals (1901-1960), see Minnesota Twins |
| Washington Senators (1961-1971), see Texas Rangers |
Inactive Franchises