| | Anaheim Angels, see Los Angeles Angels |
| 1 | Arizona Diamondbacks | 1998 | 2024 | 4,135 | 2,010 | 2,125 | .486 | -115 | 5 | 2 | 1 | 7 | 603 | 2 | 18,767 | 141,118 | 35,919 | 4,360 | .255 | 19,111 | 4.27 |
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| 2 | Atlanta Braves | 1876 | 2024 | 22,077 | 11,041 | 10,882 | .504 | 159 | 23 | 18 | 4 | 29 | 2111 | 54 | 98,754 | 755,978 | 196,473 | 14,820 | .260 | 97,295 | 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 | 19,175 | 9,044 | 10,021 | .474 | -977 | 10 | 7 | 3 | 15 | 1964 | 34 | 82,765 | 651,348 | 168,169 | 14,180 | .258 | 88,203 | 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 | 19,163 | 9,887 | 9,193 | .518 | 694 | 10 | 14 | 9 | 25 | 1928 | 39 | 89,494 | 655,813 | 175,073 | 14,379 | .267 | 85,900 | 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 | 22,116 | 11,258 | 10,697 | .513 | 561 | 8 | 17 | 3 | 21 | 2232 | 46 | 101,820 | 756,901 | 198,330 | 15,040 | .262 | 98,339 | 3.70 |
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| | Also played as Chicago, Chicago Orphans, Chicago Colts and Chicago White Stockings |
| 6 | Chicago White Sox | 1901 | 2024 | 19,170 | 9,556 | 9,511 | .501 | 45 | 6 | 6 | 3 | 11 | 1883 | 34 | 83,465 | 649,246 | 168,792 | 12,128 | .260 | 83,334 | 3.79 |
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| 7 | Cincinnati Reds | 1882 | 2024 | 21,700 | 10,870 | 10,691 | .504 | 179 | 10 | 10 | 5 | 16 | 2146 | 37 | 97,420 | 739,569 | 192,845 | 14,123 | .261 | 96,668 | 3.77 |
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| | Also played as Cincinnati Redlegs and Cincinnati |
| 8 | Cleveland Guardians | 1901 | 2024 | 19,174 | 9,777 | 9,306 | .512 | 471 | 11 | 6 | 2 | 16 | 1991 | 35 | 86,751 | 653,774 | 173,247 | 13,705 | .265 | 84,545 | 3.83 |
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| | Also played as Cleveland Indians, Cleveland Naps, Cleveland Napoleons, Cleveland Blues and Cleveland |
| 9 | Colorado Rockies | 1993 | 2024 | 4,882 | 2,266 | 2,616 | .464 | -350 | 0 | 1 | 0 | 5 | 659 | 2 | 24,317 | 167,822 | 45,553 | 5,524 | .271 | 25,872 | 5.00 |
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| 10 | Detroit Tigers | 1901 | 2024 | 19,198 | 9,604 | 9,501 | .503 | 103 | 7 | 11 | 4 | 16 | 1793 | 24 | 88,176 | 654,799 | 173,138 | 14,378 | .264 | 87,981 | 4.00 |
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| 11 | Houston Astros | 1962 | 2024 | 9,842 | 4,928 | 4,909 | .501 | 19 | 13 | 5 | 2 | 17 | 984 | 10 | 41,924 | 333,994 | 85,119 | 8,216 | .255 | 41,342 | 3.80 |
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| | Also played as Houston Colt .45s |
| | Kansas City Athletics, see Oakland Athletics |
| 12 | Kansas City Royals | 1969 | 2024 | 8,695 | 4,136 | 4,557 | .476 | -421 | 8 | 4 | 2 | 9 | 998 | 4 | 38,052 | 297,543 | 78,227 | 6,830 | .263 | 40,263 | 4.27 |
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| 13 | Los Angeles Angels | 1961 | 2024 | 10,001 | 4,968 | 5,030 | .497 | -62 | 9 | 1 | 1 | 10 | 1211 | 12 | 43,350 | 339,502 | 87,045 | 9,008 | .256 | 43,862 | 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 | 21,502 | 11,348 | 10,015 | .531 | 1333 | 21 | 25 | 7 | 37 | 1956 | 53 | 96,935 | 732,645 | 191,434 | 13,851 | .261 | 90,890 | 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 | 4,875 | 2,247 | 2,628 | .461 | -381 | 0 | 2 | 2 | 4 | 732 | 5 | 20,540 | 165,668 | 42,245 | 4,433 | .255 | 22,541 | 4.29 |
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| | Also played as Florida Marlins |
| | Milwaukee Braves, see Atlanta Braves |
| 16 | Milwaukee Brewers | 1969 | 2024 | 8,702 | 4,229 | 4,469 | .486 | -240 | 6 | 1 | 0 | 9 | 1031 | 7 | 38,645 | 295,470 | 75,736 | 8,517 | .256 | 39,563 | 4.15 |
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| | Also played as Seattle Pilots |
| | Milwaukee Brewers (1901), see Baltimore Orioles |
| 17 | Minnesota Twins | 1901 | 2024 | 19,183 | 9,186 | 9,888 | .482 | -702 | 13 | 6 | 3 | 18 | 1810 | 29 | 84,319 | 654,461 | 171,701 | 11,808 | .262 | 87,596 | 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 | 9,833 | 4,739 | 5,086 | .482 | -347 | 6 | 5 | 2 | 10 | 1233 | 16 | 40,463 | 332,682 | 83,148 | 8,342 | .250 | 41,359 | 3.80 |
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| 19 | New York Yankees | 1903 | 2024 | 18,876 | 10,700 | 8,088 | .570 | 2612 | 20 | 40 | 27 | 58 | 1797 | 47 | 91,650 | 643,408 | 170,887 | 17,027 | .266 | 78,728 | 3.65 |
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| | Also played as New York Highlanders |
| 20 | Oakland Athletics | 1901 | 2024 | 19,137 | 9,269 | 9,781 | .487 | -512 | 17 | 15 | 9 | 29 | 2096 | 41 | 84,524 | 648,672 | 167,067 | 13,910 | .258 | 87,450 | 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 | 21,510 | 10,127 | 11,268 | .473 | -1141 | 12 | 8 | 2 | 16 | 2179 | 37 | 95,436 | 735,990 | 191,657 | 13,971 | .260 | 101,283 | 3.99 |
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| | Also played as Philadelphia Phils and Philadelphia |
| 22 | Pittsburgh Pirates | 1882 | 2024 | 21,660 | 10,776 | 10,744 | .501 | 32 | 9 | 9 | 5 | 17 | 2131 | 40 | 96,457 | 742,066 | 195,519 | 12,078 | .263 | 96,583 | 3.76 |
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| | Also played as Pittsburgh and Allegheny City |
| 23 | San Diego Padres | 1969 | 2024 | 8,710 | 4,047 | 4,661 | .465 | -614 | 5 | 2 | 0 | 7 | 1147 | 13 | 35,211 | 294,420 | 73,338 | 7,054 | .249 | 38,166 | 3.96 |
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| 24 | San Francisco Giants | 1883 | 2024 | 21,586 | 11,473 | 9,950 | .536 | 1523 | 9 | 23 | 8 | 27 | 1933 | 57 | 99,866 | 736,813 | 193,968 | 15,383 | .263 | 92,432 | 3.58 |
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| | Also played as New York Giants and New York |
| 25 | Seattle Mariners | 1977 | 2024 | 7,412 | 3,526 | 3,884 | .476 | -358 | 3 | 0 | 0 | 5 | 998 | 7 | 32,930 | 253,016 | 65,193 | 7,502 | .258 | 34,651 | 4.31 |
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| | Seattle Pilots, see Milwaukee Brewers |
| | St. Louis Browns, see Baltimore Orioles |
| 26 | St. Louis Cardinals | 1882 | 2024 | 21,701 | 11,212 | 10,337 | .520 | 875 | 15 | 23 | 11 | 32 | 2214 | 50 | 99,525 | 743,907 | 197,682 | 12,970 | .266 | 95,567 | 3.69 |
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| | Also played as St. Louis and St. Louis Browns |
| 27 | Tampa Bay Rays | 1998 | 2024 | 4,133 | 2,023 | 2,110 | .489 | -87 | 4 | 2 | 0 | 9 | 605 | 2 | 18,478 | 140,652 | 35,821 | 4,325 | .255 | 18,919 | 4.24 |
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| | Also played as Tampa Bay Devil Rays |
| 28 | Texas Rangers | 1961 | 2024 | 9,988 | 4,752 | 5,230 | .476 | -478 | 7 | 3 | 1 | 9 | 1249 | 10 | 45,041 | 341,106 | 88,131 | 9,993 | .258 | 47,062 | 4.29 |
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| | Also played as Washington Senators |
| 29 | Toronto Blue Jays | 1977 | 2024 | 7,414 | 3,700 | 3,711 | .499 | -11 | 6 | 2 | 2 | 10 | 919 | 10 | 34,361 | 254,145 | 66,191 | 8,081 | .260 | 33,915 | 4.22 |
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| 30 | Washington Nationals | 1969 | 2024 | 8,698 | 4,204 | 4,490 | .484 | -286 | 5 | 1 | 1 | 6 | 1052 | 10 | 36,441 | 294,290 | 74,737 | 7,440 | .254 | 37,778 | 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