| | Anaheim Angels, see Los Angeles Angels |
| 1 | Arizona Diamondbacks | 1998 | 2024 | 4,155 | 2,019 | 2,136 | .486 | -117 | 5 | 2 | 1 | 7 | 606 | 2 | 18,834 | 141,767 | 36,060 | 4,376 | .254 | 19,215 | 4.27 |
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| 2 | Atlanta Braves | 1876 | 2024 | 22,096 | 11,051 | 10,891 | .504 | 160 | 23 | 18 | 4 | 29 | 2113 | 54 | 98,815 | 756,603 | 196,609 | 14,835 | .260 | 97,353 | 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 | 19,194 | 9,057 | 10,027 | .475 | -970 | 10 | 7 | 3 | 15 | 1964 | 34 | 82,847 | 651,986 | 168,314 | 14,209 | .258 | 88,257 | 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 | 19,184 | 9,896 | 9,205 | .518 | 691 | 10 | 14 | 9 | 25 | 1933 | 39 | 89,584 | 656,541 | 175,264 | 14,395 | .267 | 85,980 | 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 | 22,139 | 11,269 | 10,709 | .513 | 560 | 8 | 17 | 3 | 21 | 2233 | 46 | 101,903 | 757,657 | 198,498 | 15,062 | .262 | 98,437 | 3.70 |
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| | Also played as Chicago, Chicago Orphans, Chicago Colts and Chicago White Stockings |
| 6 | Chicago White Sox | 1901 | 2024 | 19,192 | 9,567 | 9,522 | .501 | 45 | 6 | 6 | 3 | 11 | 1889 | 34 | 83,545 | 649,979 | 168,969 | 12,148 | .260 | 83,424 | 3.79 |
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| 7 | Cincinnati Reds | 1882 | 2024 | 21,722 | 10,876 | 10,707 | .504 | 169 | 10 | 10 | 5 | 16 | 2149 | 37 | 97,493 | 740,284 | 193,002 | 14,141 | .261 | 96,764 | 3.77 |
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| | Also played as Cincinnati Redlegs and Cincinnati |
| 8 | Cleveland Guardians | 1901 | 2024 | 19,196 | 9,788 | 9,317 | .512 | 471 | 11 | 6 | 2 | 16 | 1993 | 35 | 86,835 | 654,483 | 173,397 | 13,730 | .265 | 84,635 | 3.83 |
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| | Also played as Cleveland Indians, Cleveland Naps, Cleveland Napoleons, Cleveland Blues and Cleveland |
| 9 | Colorado Rockies | 1993 | 2024 | 4,902 | 2,275 | 2,627 | .464 | -352 | 0 | 1 | 0 | 5 | 660 | 2 | 24,406 | 168,510 | 45,728 | 5,543 | .271 | 25,967 | 5.00 |
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| 10 | Detroit Tigers | 1901 | 2024 | 19,218 | 9,612 | 9,513 | .503 | 99 | 7 | 11 | 4 | 16 | 1794 | 24 | 88,261 | 655,470 | 173,299 | 14,395 | .264 | 88,061 | 4.00 |
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| 11 | Houston Astros | 1962 | 2024 | 9,863 | 4,941 | 4,917 | .501 | 24 | 13 | 5 | 2 | 17 | 987 | 10 | 42,031 | 334,703 | 85,305 | 8,243 | .255 | 41,425 | 3.80 |
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| | Also played as Houston Colt .45s |
| | Kansas City Athletics, see Oakland Athletics |
| 12 | Kansas City Royals | 1969 | 2024 | 8,717 | 4,149 | 4,566 | .476 | -417 | 8 | 4 | 2 | 9 | 1000 | 4 | 38,146 | 298,268 | 78,405 | 6,845 | .263 | 40,345 | 4.27 |
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| 13 | Los Angeles Angels | 1961 | 2024 | 10,022 | 4,975 | 5,044 | .497 | -69 | 9 | 1 | 1 | 10 | 1218 | 12 | 43,446 | 340,214 | 87,227 | 9,034 | .256 | 43,974 | 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 | 21,524 | 11,364 | 10,021 | .531 | 1343 | 21 | 25 | 7 | 37 | 1958 | 53 | 97,053 | 733,399 | 191,631 | 13,884 | .261 | 90,946 | 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 | 4,896 | 2,255 | 2,641 | .461 | -386 | 0 | 2 | 2 | 4 | 738 | 5 | 20,626 | 166,379 | 42,416 | 4,451 | .255 | 22,660 | 4.29 |
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| | Also played as Florida Marlins |
| | Milwaukee Braves, see Atlanta Braves |
| 16 | Milwaukee Brewers | 1969 | 2024 | 8,724 | 4,241 | 4,479 | .486 | -238 | 6 | 1 | 0 | 9 | 1036 | 7 | 38,755 | 296,219 | 75,926 | 8,545 | .256 | 39,664 | 4.15 |
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| | Also played as Seattle Pilots |
| | Milwaukee Brewers (1901), see Baltimore Orioles |
| 17 | Minnesota Twins | 1901 | 2024 | 19,205 | 9,201 | 9,895 | .482 | -694 | 13 | 6 | 3 | 18 | 1811 | 29 | 84,437 | 655,206 | 171,894 | 11,834 | .262 | 87,684 | 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 | 9,854 | 4,747 | 5,099 | .482 | -352 | 6 | 5 | 2 | 10 | 1236 | 16 | 40,541 | 333,408 | 83,306 | 8,362 | .250 | 41,457 | 3.80 |
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| 19 | New York Yankees | 1903 | 2024 | 18,898 | 10,715 | 8,095 | .570 | 2620 | 20 | 40 | 27 | 58 | 1798 | 47 | 91,766 | 644,164 | 171,097 | 17,066 | .266 | 78,795 | 3.65 |
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| | Also played as New York Highlanders |
| 20 | Oakland Athletics | 1901 | 2024 | 19,160 | 9,279 | 9,794 | .486 | -515 | 17 | 15 | 9 | 29 | 2100 | 41 | 84,629 | 649,428 | 167,241 | 13,941 | .258 | 87,573 | 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 | 21,532 | 10,144 | 11,273 | .474 | -1129 | 12 | 8 | 2 | 16 | 2180 | 37 | 95,573 | 736,756 | 191,864 | 13,995 | .260 | 101,358 | 3.99 |
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| | Also played as Philadelphia Phils and Philadelphia |
| 22 | Pittsburgh Pirates | 1882 | 2024 | 21,682 | 10,784 | 10,758 | .501 | 26 | 9 | 9 | 5 | 17 | 2133 | 40 | 96,532 | 742,795 | 195,672 | 12,103 | .263 | 96,685 | 3.76 |
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| | Also played as Pittsburgh and Allegheny City |
| 23 | San Diego Padres | 1969 | 2024 | 8,731 | 4,057 | 4,672 | .465 | -615 | 5 | 2 | 0 | 7 | 1149 | 13 | 35,300 | 295,134 | 73,519 | 7,076 | .249 | 38,256 | 3.97 |
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| 24 | San Francisco Giants | 1883 | 2024 | 21,607 | 11,482 | 9,962 | .535 | 1520 | 9 | 23 | 8 | 27 | 1937 | 57 | 99,940 | 737,509 | 194,131 | 15,401 | .263 | 92,533 | 3.58 |
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| | Also played as New York Giants and New York |
| 25 | Seattle Mariners | 1977 | 2024 | 7,434 | 3,538 | 3,894 | .476 | -356 | 3 | 0 | 0 | 5 | 1000 | 7 | 33,012 | 253,727 | 65,355 | 7,531 | .258 | 34,737 | 4.30 |
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| | Seattle Pilots, see Milwaukee Brewers |
| | St. Louis Browns, see Baltimore Orioles |
| 26 | St. Louis Cardinals | 1882 | 2024 | 21,721 | 11,221 | 10,348 | .520 | 873 | 15 | 23 | 11 | 32 | 2215 | 50 | 99,608 | 744,596 | 197,848 | 12,990 | .266 | 95,666 | 3.69 |
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| | Also played as St. Louis and St. Louis Browns |
| 27 | Tampa Bay Rays | 1998 | 2024 | 4,154 | 2,035 | 2,119 | .490 | -84 | 4 | 2 | 0 | 9 | 609 | 2 | 18,573 | 141,353 | 35,992 | 4,344 | .255 | 19,015 | 4.24 |
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| | Also played as Tampa Bay Devil Rays |
| 28 | Texas Rangers | 1961 | 2024 | 10,010 | 4,763 | 5,241 | .476 | -478 | 7 | 3 | 1 | 9 | 1250 | 10 | 45,143 | 341,859 | 88,318 | 10,019 | .258 | 47,162 | 4.29 |
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| | Also played as Washington Senators |
| 29 | Toronto Blue Jays | 1977 | 2024 | 7,433 | 3,706 | 3,724 | .499 | -18 | 6 | 2 | 2 | 10 | 921 | 10 | 34,423 | 254,759 | 66,324 | 8,096 | .260 | 34,013 | 4.22 |
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| 30 | Washington Nationals | 1969 | 2024 | 8,719 | 4,214 | 4,501 | .484 | -287 | 5 | 1 | 1 | 6 | 1052 | 10 | 36,528 | 294,984 | 74,881 | 7,455 | .254 | 37,865 | 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