| | Anaheim Angels, see Los Angeles Angels |
| 1 | Arizona Diamondbacks | 1998 | 2024 | 4,272 | 2,087 | 2,185 | .489 | -98 | 5 | 2 | 1 | 7 | 616 | 2 | 19,505 | 145,771 | 37,144 | 4,545 | .255 | 19,790 | 4.28 |
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| 2 | Atlanta Braves | 1876 | 2024 | 22,217 | 11,114 | 10,949 | .504 | 165 | 23 | 18 | 4 | 30 | 2126 | 54 | 99,325 | 760,684 | 197,587 | 15,005 | .260 | 97,812 | 3.67 |
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| | Also played as Milwaukee Braves, Boston Braves, Boston Bees, Boston, Boston Doves, Boston Nationals and Boston Reds |
| 3 | Baltimore Orioles | 1901 | 2024 | 19,314 | 9,120 | 10,084 | .475 | -964 | 10 | 7 | 3 | 16 | 1986 | 34 | 83,421 | 656,108 | 169,350 | 14,379 | .258 | 88,800 | 4.05 |
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| | Also played as St. Louis Browns and Milwaukee Brewers |
| | Boston Braves, see Atlanta Braves |
| 4 | Boston Red Sox | 1901 | 2024 | 19,301 | 9,955 | 9,263 | .518 | 692 | 10 | 14 | 9 | 25 | 1948 | 39 | 90,141 | 660,579 | 176,293 | 14,543 | .267 | 86,558 | 3.92 |
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| | Also played as Boston Americans |
| | Brooklyn Dodgers, see Los Angeles Dodgers |
| | California Angels, see Los Angeles Angels |
| 5 | Chicago Cubs | 1876 | 2024 | 22,255 | 11,327 | 10,767 | .513 | 560 | 8 | 17 | 3 | 21 | 2248 | 46 | 102,430 | 761,571 | 199,459 | 15,184 | .262 | 98,905 | 3.70 |
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| | Also played as Chicago, Chicago Orphans, Chicago Colts and Chicago White Stockings |
| 6 | Chicago White Sox | 1901 | 2024 | 19,309 | 9,594 | 9,612 | .500 | -18 | 6 | 6 | 3 | 11 | 1906 | 35 | 83,922 | 653,904 | 169,840 | 12,249 | .260 | 84,018 | 3.80 |
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| 7 | Cincinnati Reds | 1882 | 2024 | 21,839 | 10,934 | 10,766 | .504 | 168 | 10 | 10 | 5 | 16 | 2169 | 38 | 97,999 | 744,143 | 193,909 | 14,272 | .261 | 97,263 | 3.77 |
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| | Also played as Cincinnati Redlegs and Cincinnati |
| 8 | Cleveland Guardians | 1901 | 2024 | 19,312 | 9,852 | 9,369 | .513 | 483 | 12 | 6 | 2 | 17 | 2006 | 35 | 87,331 | 658,293 | 174,307 | 13,867 | .265 | 85,093 | 3.83 |
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| | Also played as Cleveland Indians, Cleveland Naps, Cleveland Napoleons, Cleveland Blues and Cleveland |
| 9 | Colorado Rockies | 1993 | 2024 | 5,020 | 2,321 | 2,699 | .462 | -378 | 0 | 1 | 0 | 5 | 675 | 2 | 24,911 | 172,470 | 46,676 | 5,686 | .271 | 26,659 | 5.02 |
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| 10 | Detroit Tigers | 1901 | 2024 | 19,336 | 9,676 | 9,567 | .503 | 109 | 7 | 11 | 4 | 17 | 1807 | 24 | 88,762 | 659,426 | 174,230 | 14,520 | .264 | 88,536 | 4.00 |
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| 11 | Houston Astros | 1962 | 2024 | 9,979 | 5,009 | 4,965 | .502 | 44 | 14 | 5 | 2 | 18 | 1001 | 10 | 42,566 | 338,686 | 86,347 | 8,381 | .255 | 41,860 | 3.80 |
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| | Also played as Houston Colt .45s |
| | Kansas City Athletics, see Oakland Athletics |
| 12 | Kansas City Royals | 1969 | 2024 | 8,833 | 4,208 | 4,623 | .477 | -415 | 8 | 4 | 2 | 10 | 1012 | 4 | 38,673 | 302,167 | 79,381 | 6,972 | .263 | 40,830 | 4.26 |
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| 13 | Los Angeles Angels | 1961 | 2024 | 10,139 | 5,021 | 5,115 | .495 | -94 | 9 | 1 | 1 | 10 | 1236 | 13 | 43,884 | 344,039 | 88,074 | 9,149 | .256 | 44,542 | 4.00 |
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| | Also played as Los Angeles Angels of Anaheim, Anaheim Angels and California Angels |
| 14 | Los Angeles Dodgers | 1884 | 2024 | 21,639 | 11,432 | 10,068 | .532 | 1364 | 22 | 26 | 8 | 38 | 1974 | 54 | 97,649 | 737,318 | 192,637 | 14,055 | .261 | 91,466 | 3.53 |
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| | Also played as Brooklyn Dodgers, Brooklyn Robins, Brooklyn Superbas, Brooklyn Grooms, Brooklyn and Brooklyn Bridegrooms |
| 15 | Miami Marlins | 1993 | 2024 | 5,012 | 2,303 | 2,709 | .459 | -406 | 0 | 2 | 2 | 4 | 760 | 5 | 21,092 | 170,357 | 43,411 | 4,564 | .255 | 23,251 | 4.30 |
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| | Also played as Florida Marlins |
| | Milwaukee Braves, see Atlanta Braves |
| 16 | Milwaukee Brewers | 1969 | 2024 | 8,842 | 4,308 | 4,530 | .487 | -222 | 7 | 1 | 0 | 10 | 1051 | 8 | 39,305 | 300,175 | 76,893 | 8,665 | .256 | 40,119 | 4.14 |
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| | Also played as Seattle Pilots |
| | Milwaukee Brewers (1901), see Baltimore Orioles |
| 17 | Minnesota Twins | 1901 | 2024 | 19,323 | 9,259 | 9,955 | .482 | -696 | 13 | 6 | 3 | 18 | 1823 | 29 | 84,981 | 659,224 | 172,904 | 11,971 | .262 | 88,234 | 4.00 |
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| | 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 | 9,972 | 4,816 | 5,148 | .483 | -332 | 6 | 5 | 2 | 11 | 1252 | 16 | 41,126 | 337,409 | 84,313 | 8,526 | .250 | 41,955 | 3.80 |
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| 19 | New York Yankees | 1903 | 2024 | 19,014 | 10,778 | 8,148 | .569 | 2630 | 21 | 41 | 27 | 59 | 1810 | 47 | 92,361 | 648,078 | 172,058 | 17,241 | .265 | 79,312 | 3.66 |
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| | Also played as New York Highlanders |
| 20 | Oakland Athletics | 1901 | 2024 | 19,275 | 9,329 | 9,859 | .486 | -530 | 17 | 15 | 9 | 29 | 2115 | 43 | 85,099 | 653,321 | 168,174 | 14,081 | .257 | 88,110 | 4.00 |
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| | Also played as Kansas City Athletics and Philadelphia Athletics |
| | Philadelphia Athletics, see Oakland Athletics |
| 21 | Philadelphia Phillies | 1883 | 2024 | 21,648 | 10,207 | 11,326 | .474 | -1119 | 13 | 8 | 2 | 17 | 2194 | 38 | 96,116 | 740,732 | 192,887 | 14,142 | .260 | 101,861 | 3.99 |
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| | Also played as Philadelphia Phils and Philadelphia |
| 22 | Pittsburgh Pirates | 1882 | 2024 | 21,798 | 10,839 | 10,819 | .500 | 20 | 9 | 9 | 5 | 17 | 2151 | 41 | 97,020 | 746,713 | 196,602 | 12,219 | .263 | 97,220 | 3.76 |
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| | Also played as Pittsburgh and Allegheny City |
| 23 | San Diego Padres | 1969 | 2024 | 8,846 | 4,127 | 4,717 | .467 | -590 | 5 | 2 | 0 | 8 | 1162 | 13 | 35,846 | 299,072 | 74,570 | 7,218 | .249 | 38,717 | 3.96 |
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| 24 | San Francisco Giants | 1883 | 2024 | 21,723 | 11,541 | 10,019 | .535 | 1522 | 9 | 23 | 8 | 27 | 1951 | 57 | 100,454 | 741,444 | 195,066 | 15,538 | .263 | 93,012 | 3.58 |
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| | Also played as New York Giants and New York |
| 25 | Seattle Mariners | 1977 | 2024 | 7,551 | 3,599 | 3,950 | .477 | -351 | 3 | 0 | 0 | 5 | 1013 | 7 | 33,518 | 257,589 | 66,216 | 7,665 | .257 | 35,177 | 4.29 |
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| | Seattle Pilots, see Milwaukee Brewers |
| | St. Louis Browns, see Baltimore Orioles |
| 26 | St. Louis Cardinals | 1882 | 2024 | 21,839 | 11,285 | 10,402 | .520 | 883 | 15 | 23 | 11 | 32 | 2222 | 51 | 100,115 | 748,635 | 198,875 | 13,119 | .266 | 96,174 | 3.69 |
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| | Also played as St. Louis and St. Louis Browns |
| 27 | Tampa Bay Rays | 1998 | 2024 | 4,270 | 2,091 | 2,179 | .490 | -88 | 4 | 2 | 0 | 9 | 620 | 2 | 18,986 | 145,201 | 36,860 | 4,452 | .254 | 19,460 | 4.22 |
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| | Also played as Tampa Bay Devil Rays |
| 28 | Texas Rangers | 1961 | 2024 | 10,126 | 4,818 | 5,302 | .476 | -484 | 7 | 3 | 1 | 9 | 1264 | 10 | 45,610 | 345,757 | 89,227 | 10,147 | .258 | 47,692 | 4.29 |
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| | Also played as Washington Senators |
| 29 | Toronto Blue Jays | 1977 | 2024 | 7,552 | 3,761 | 3,788 | .498 | -27 | 6 | 2 | 2 | 10 | 939 | 11 | 34,939 | 258,775 | 67,314 | 8,216 | .260 | 34,553 | 4.22 |
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| 30 | Washington Nationals | 1969 | 2024 | 8,838 | 4,265 | 4,569 | .483 | -304 | 5 | 1 | 1 | 6 | 1063 | 10 | 37,020 | 298,943 | 75,872 | 7,555 | .254 | 38,449 | 3.95 |
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| | Also played as Montreal Expos |
| | Washington Senators/Nationals (1901-1960), see Minnesota Twins |
| | Washington Senators (1961-1971), see Texas Rangers |
Inactive Franchises