| | Anaheim Angels, see Los Angeles Angels |
| 1 | Arizona Diamondbacks | 1998 | 2024 | 4,141 | 2,012 | 2,129 | .486 | -117 | 5 | 2 | 1 | 7 | 604 | 2 | 18,781 | 141,304 | 35,956 | 4,364 | .254 | 19,138 | 4.27 |
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| 2 | Atlanta Braves | 1876 | 2024 | 22,083 | 11,044 | 10,885 | .504 | 159 | 23 | 18 | 4 | 29 | 2111 | 54 | 98,773 | 756,179 | 196,517 | 14,821 | .260 | 97,312 | 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 | 19,181 | 9,048 | 10,023 | .474 | -975 | 10 | 7 | 3 | 15 | 1964 | 34 | 82,792 | 651,548 | 168,215 | 14,189 | .258 | 88,220 | 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 | 19,169 | 9,891 | 9,195 | .518 | 696 | 10 | 14 | 9 | 25 | 1929 | 39 | 89,533 | 656,032 | 175,146 | 14,385 | .267 | 85,917 | 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 | 22,123 | 11,262 | 10,700 | .513 | 562 | 8 | 17 | 3 | 21 | 2233 | 46 | 101,843 | 757,125 | 198,378 | 15,044 | .262 | 98,371 | 3.70 |
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| | Also played as Chicago, Chicago Orphans, Chicago Colts and Chicago White Stockings |
| 6 | Chicago White Sox | 1901 | 2024 | 19,177 | 9,559 | 9,515 | .501 | 44 | 6 | 6 | 3 | 11 | 1887 | 34 | 83,499 | 649,492 | 168,859 | 12,136 | .260 | 83,368 | 3.79 |
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| 7 | Cincinnati Reds | 1882 | 2024 | 21,707 | 10,873 | 10,695 | .504 | 178 | 10 | 10 | 5 | 16 | 2146 | 37 | 97,448 | 739,794 | 192,894 | 14,129 | .261 | 96,695 | 3.77 |
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| | Also played as Cincinnati Redlegs and Cincinnati |
| 8 | Cleveland Guardians | 1901 | 2024 | 19,180 | 9,779 | 9,310 | .512 | 469 | 11 | 6 | 2 | 16 | 1992 | 35 | 86,775 | 653,972 | 173,289 | 13,711 | .265 | 84,579 | 3.83 |
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| | Also played as Cleveland Indians, Cleveland Naps, Cleveland Napoleons, Cleveland Blues and Cleveland |
| 9 | Colorado Rockies | 1993 | 2024 | 4,887 | 2,267 | 2,620 | .464 | -353 | 0 | 1 | 0 | 5 | 660 | 2 | 24,341 | 167,994 | 45,596 | 5,530 | .271 | 25,913 | 5.01 |
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| 10 | Detroit Tigers | 1901 | 2024 | 19,204 | 9,607 | 9,504 | .503 | 103 | 7 | 11 | 4 | 16 | 1793 | 24 | 88,203 | 654,996 | 173,186 | 14,385 | .264 | 88,010 | 4.00 |
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| 11 | Houston Astros | 1962 | 2024 | 9,847 | 4,931 | 4,911 | .501 | 20 | 13 | 5 | 2 | 17 | 986 | 10 | 41,958 | 334,174 | 85,169 | 8,226 | .255 | 41,364 | 3.80 |
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| | Also played as Houston Colt .45s |
| | Kansas City Athletics, see Oakland Athletics |
| 12 | Kansas City Royals | 1969 | 2024 | 8,702 | 4,140 | 4,560 | .476 | -420 | 8 | 4 | 2 | 9 | 999 | 4 | 38,080 | 297,765 | 78,279 | 6,834 | .263 | 40,283 | 4.27 |
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| 13 | Los Angeles Angels | 1961 | 2024 | 10,007 | 4,969 | 5,035 | .497 | -66 | 9 | 1 | 1 | 10 | 1214 | 12 | 43,379 | 339,701 | 87,093 | 9,017 | .256 | 43,912 | 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 | 21,509 | 11,353 | 10,017 | .531 | 1336 | 21 | 25 | 7 | 37 | 1956 | 53 | 96,976 | 732,903 | 191,514 | 13,858 | .261 | 90,908 | 3.52 |
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| | Also played as Brooklyn Dodgers, Brooklyn Robins, Brooklyn Superbas, Brooklyn Grooms, Brooklyn and Brooklyn Bridegrooms |
| 15 | Miami Marlins | 1993 | 2024 | 4,881 | 2,248 | 2,633 | .461 | -385 | 0 | 2 | 2 | 4 | 735 | 5 | 20,566 | 165,876 | 42,296 | 4,437 | .255 | 22,584 | 4.29 |
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| | Also played as Florida Marlins |
| | Milwaukee Braves, see Atlanta Braves |
| 16 | Milwaukee Brewers | 1969 | 2024 | 8,709 | 4,233 | 4,472 | .486 | -239 | 6 | 1 | 0 | 9 | 1032 | 7 | 38,678 | 295,711 | 75,793 | 8,524 | .256 | 39,609 | 4.15 |
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| | Also played as Seattle Pilots |
| | Milwaukee Brewers (1901), see Baltimore Orioles |
| 17 | Minnesota Twins | 1901 | 2024 | 19,190 | 9,193 | 9,888 | .482 | -695 | 13 | 6 | 3 | 18 | 1810 | 29 | 84,372 | 654,712 | 171,782 | 11,819 | .262 | 87,622 | 3.99 |
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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 | 9,839 | 4,742 | 5,089 | .482 | -347 | 6 | 5 | 2 | 10 | 1234 | 16 | 40,486 | 332,887 | 83,193 | 8,351 | .250 | 41,379 | 3.80 |
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| 19 | New York Yankees | 1903 | 2024 | 18,883 | 10,703 | 8,092 | .569 | 2611 | 20 | 40 | 27 | 58 | 1798 | 47 | 91,696 | 643,665 | 170,964 | 17,043 | .266 | 78,755 | 3.65 |
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| | Also played as New York Highlanders |
| 20 | Oakland Athletics | 1901 | 2024 | 19,144 | 9,274 | 9,783 | .487 | -509 | 17 | 15 | 9 | 29 | 2096 | 41 | 84,550 | 648,893 | 167,115 | 13,920 | .258 | 87,476 | 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 | 21,517 | 10,132 | 11,270 | .473 | -1138 | 12 | 8 | 2 | 16 | 2179 | 37 | 95,479 | 736,237 | 191,730 | 13,984 | .260 | 101,311 | 3.99 |
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| | Also played as Philadelphia Phils and Philadelphia |
| 22 | Pittsburgh Pirates | 1882 | 2024 | 21,667 | 10,777 | 10,750 | .501 | 27 | 9 | 9 | 5 | 17 | 2131 | 40 | 96,473 | 742,292 | 195,562 | 12,083 | .263 | 96,612 | 3.76 |
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| | Also played as Pittsburgh and Allegheny City |
| 23 | San Diego Padres | 1969 | 2024 | 8,717 | 4,049 | 4,666 | .465 | -617 | 5 | 2 | 0 | 7 | 1147 | 13 | 35,243 | 294,652 | 73,391 | 7,061 | .249 | 38,209 | 3.97 |
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| 24 | San Francisco Giants | 1883 | 2024 | 21,591 | 11,475 | 9,953 | .536 | 1522 | 9 | 23 | 8 | 27 | 1934 | 57 | 99,877 | 736,970 | 194,001 | 15,388 | .263 | 92,450 | 3.58 |
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| | Also played as New York Giants and New York |
| 25 | Seattle Mariners | 1977 | 2024 | 7,419 | 3,531 | 3,886 | .476 | -355 | 3 | 0 | 0 | 5 | 999 | 7 | 32,951 | 253,228 | 65,231 | 7,511 | .258 | 34,667 | 4.30 |
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| | Seattle Pilots, see Milwaukee Brewers |
| | St. Louis Browns, see Baltimore Orioles |
| 26 | St. Louis Cardinals | 1882 | 2024 | 21,707 | 11,216 | 10,339 | .520 | 877 | 15 | 23 | 11 | 32 | 2214 | 50 | 99,551 | 744,110 | 197,728 | 12,974 | .266 | 95,590 | 3.69 |
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| | Also played as St. Louis and St. Louis Browns |
| 27 | Tampa Bay Rays | 1998 | 2024 | 4,139 | 2,025 | 2,114 | .489 | -89 | 4 | 2 | 0 | 9 | 606 | 2 | 18,501 | 140,854 | 35,870 | 4,331 | .255 | 18,953 | 4.24 |
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| | Also played as Tampa Bay Devil Rays |
| 28 | Texas Rangers | 1961 | 2024 | 9,994 | 4,756 | 5,232 | .476 | -476 | 7 | 3 | 1 | 9 | 1249 | 10 | 45,066 | 341,298 | 88,178 | 10,005 | .258 | 47,080 | 4.29 |
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| | Also played as Washington Senators |
| 29 | Toronto Blue Jays | 1977 | 2024 | 7,421 | 3,702 | 3,716 | .499 | -14 | 6 | 2 | 2 | 10 | 921 | 10 | 34,378 | 254,352 | 66,232 | 8,087 | .260 | 33,946 | 4.22 |
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| 30 | Washington Nationals | 1969 | 2024 | 8,705 | 4,208 | 4,493 | .484 | -285 | 5 | 1 | 1 | 6 | 1052 | 10 | 36,478 | 294,532 | 74,790 | 7,447 | .254 | 37,814 | 3.94 |
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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