| | Anaheim Angels, see Los Angeles Angels |
| 1 | Arizona Diamondbacks | 1998 | 2024 | 4,137 | 2,010 | 2,127 | .486 | -117 | 5 | 2 | 1 | 7 | 603 | 2 | 18,769 | 141,175 | 35,930 | 4,361 | .255 | 19,122 | 4.27 |
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| 2 | Atlanta Braves | 1876 | 2024 | 22,079 | 11,043 | 10,882 | .504 | 161 | 23 | 18 | 4 | 29 | 2111 | 54 | 98,764 | 756,042 | 196,491 | 14,821 | .260 | 97,300 | 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 | 19,177 | 9,045 | 10,022 | .474 | -977 | 10 | 7 | 3 | 15 | 1964 | 34 | 82,773 | 651,418 | 168,184 | 14,182 | .258 | 88,211 | 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 | 19,166 | 9,888 | 9,195 | .518 | 693 | 10 | 14 | 9 | 25 | 1928 | 39 | 89,507 | 655,923 | 175,105 | 14,383 | .267 | 85,913 | 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 | 22,119 | 11,261 | 10,697 | .513 | 564 | 8 | 17 | 3 | 21 | 2232 | 46 | 101,834 | 757,001 | 198,359 | 15,042 | .262 | 98,344 | 3.70 |
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| | Also played as Chicago, Chicago Orphans, Chicago Colts and Chicago White Stockings |
| 6 | Chicago White Sox | 1901 | 2024 | 19,173 | 9,557 | 9,513 | .501 | 44 | 6 | 6 | 3 | 11 | 1885 | 34 | 83,480 | 649,348 | 168,817 | 12,132 | .260 | 83,350 | 3.79 |
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| 7 | Cincinnati Reds | 1882 | 2024 | 21,703 | 10,871 | 10,693 | .504 | 178 | 10 | 10 | 5 | 16 | 2146 | 37 | 97,428 | 739,660 | 192,862 | 14,124 | .261 | 96,679 | 3.77 |
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| | Also played as Cincinnati Redlegs and Cincinnati |
| 8 | Cleveland Guardians | 1901 | 2024 | 19,177 | 9,778 | 9,308 | .512 | 470 | 11 | 6 | 2 | 16 | 1992 | 35 | 86,759 | 653,865 | 173,264 | 13,708 | .265 | 84,563 | 3.83 |
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| | Also played as Cleveland Indians, Cleveland Naps, Cleveland Napoleons, Cleveland Blues and Cleveland |
| 9 | Colorado Rockies | 1993 | 2024 | 4,884 | 2,267 | 2,617 | .464 | -350 | 0 | 1 | 0 | 5 | 659 | 2 | 24,329 | 167,890 | 45,572 | 5,528 | .271 | 25,886 | 5.01 |
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| 10 | Detroit Tigers | 1901 | 2024 | 19,200 | 9,604 | 9,503 | .503 | 101 | 7 | 11 | 4 | 16 | 1793 | 24 | 88,181 | 654,865 | 173,150 | 14,378 | .264 | 87,996 | 4.00 |
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| 11 | Houston Astros | 1962 | 2024 | 9,844 | 4,928 | 4,911 | .501 | 17 | 13 | 5 | 2 | 17 | 984 | 10 | 41,928 | 334,060 | 85,134 | 8,217 | .255 | 41,349 | 3.80 |
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| | Also played as Houston Colt .45s |
| | Kansas City Athletics, see Oakland Athletics |
| 12 | Kansas City Royals | 1969 | 2024 | 8,698 | 4,139 | 4,557 | .476 | -418 | 8 | 4 | 2 | 9 | 998 | 4 | 38,065 | 297,625 | 78,246 | 6,831 | .263 | 40,266 | 4.27 |
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| 13 | Los Angeles Angels | 1961 | 2024 | 10,003 | 4,968 | 5,032 | .497 | -64 | 9 | 1 | 1 | 10 | 1211 | 12 | 43,358 | 339,565 | 87,056 | 9,011 | .256 | 43,873 | 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 | 21,505 | 11,351 | 10,015 | .531 | 1336 | 21 | 25 | 7 | 37 | 1956 | 53 | 96,960 | 732,766 | 191,482 | 13,856 | .261 | 90,895 | 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 | 4,877 | 2,247 | 2,630 | .461 | -383 | 0 | 2 | 2 | 4 | 734 | 5 | 20,544 | 165,735 | 42,258 | 4,434 | .255 | 22,548 | 4.29 |
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| | Also played as Florida Marlins |
| | Milwaukee Braves, see Atlanta Braves |
| 16 | Milwaukee Brewers | 1969 | 2024 | 8,705 | 4,232 | 4,469 | .486 | -237 | 6 | 1 | 0 | 9 | 1031 | 7 | 38,662 | 295,580 | 75,764 | 8,521 | .256 | 39,576 | 4.15 |
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| | Also played as Seattle Pilots |
| | Milwaukee Brewers (1901), see Baltimore Orioles |
| 17 | Minnesota Twins | 1901 | 2024 | 19,186 | 9,189 | 9,888 | .482 | -699 | 13 | 6 | 3 | 18 | 1810 | 29 | 84,336 | 654,566 | 171,735 | 11,815 | .262 | 87,605 | 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 | 9,835 | 4,740 | 5,087 | .482 | -347 | 6 | 5 | 2 | 10 | 1234 | 16 | 40,473 | 332,753 | 83,166 | 8,346 | .250 | 41,365 | 3.80 |
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| 19 | New York Yankees | 1903 | 2024 | 18,879 | 10,701 | 8,090 | .569 | 2611 | 20 | 40 | 27 | 58 | 1798 | 47 | 91,664 | 643,514 | 170,915 | 17,034 | .266 | 78,741 | 3.65 |
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| | Also played as New York Highlanders |
| 20 | Oakland Athletics | 1901 | 2024 | 19,140 | 9,271 | 9,782 | .487 | -511 | 17 | 15 | 9 | 29 | 2096 | 41 | 84,533 | 648,768 | 167,084 | 13,914 | .258 | 87,460 | 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 | 21,513 | 10,129 | 11,269 | .473 | -1140 | 12 | 8 | 2 | 16 | 2179 | 37 | 95,454 | 736,100 | 191,693 | 13,977 | .260 | 101,293 | 3.99 |
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| | Also played as Philadelphia Phils and Philadelphia |
| 22 | Pittsburgh Pirates | 1882 | 2024 | 21,663 | 10,776 | 10,747 | .501 | 29 | 9 | 9 | 5 | 17 | 2131 | 40 | 96,464 | 742,166 | 195,539 | 12,080 | .263 | 96,596 | 3.76 |
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| | Also played as Pittsburgh and Allegheny City |
| 23 | San Diego Padres | 1969 | 2024 | 8,713 | 4,048 | 4,663 | .465 | -615 | 5 | 2 | 0 | 7 | 1147 | 13 | 35,228 | 294,521 | 73,365 | 7,057 | .249 | 38,187 | 3.97 |
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| 24 | San Francisco Giants | 1883 | 2024 | 21,588 | 11,474 | 9,951 | .536 | 1523 | 9 | 23 | 8 | 27 | 1934 | 57 | 99,871 | 736,876 | 193,982 | 15,385 | .263 | 92,440 | 3.58 |
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| | Also played as New York Giants and New York |
| 25 | Seattle Mariners | 1977 | 2024 | 7,415 | 3,528 | 3,885 | .476 | -357 | 3 | 0 | 0 | 5 | 998 | 7 | 32,941 | 253,111 | 65,211 | 7,507 | .258 | 34,660 | 4.31 |
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| | Seattle Pilots, see Milwaukee Brewers |
| | St. Louis Browns, see Baltimore Orioles |
| 26 | St. Louis Cardinals | 1882 | 2024 | 21,703 | 11,214 | 10,337 | .520 | 877 | 15 | 23 | 11 | 32 | 2214 | 50 | 99,534 | 743,969 | 197,696 | 12,972 | .266 | 95,570 | 3.69 |
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| | Also played as St. Louis and St. Louis Browns |
| 27 | Tampa Bay Rays | 1998 | 2024 | 4,135 | 2,024 | 2,111 | .489 | -87 | 4 | 2 | 0 | 9 | 605 | 2 | 18,489 | 140,721 | 35,841 | 4,327 | .255 | 18,933 | 4.24 |
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| | Also played as Tampa Bay Devil Rays |
| 28 | Texas Rangers | 1961 | 2024 | 9,991 | 4,754 | 5,231 | .476 | -477 | 7 | 3 | 1 | 9 | 1249 | 10 | 45,051 | 341,200 | 88,154 | 9,999 | .258 | 47,068 | 4.29 |
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| | Also played as Washington Senators |
| 29 | Toronto Blue Jays | 1977 | 2024 | 7,417 | 3,700 | 3,714 | .499 | -14 | 6 | 2 | 2 | 10 | 921 | 10 | 34,366 | 254,227 | 66,205 | 8,083 | .260 | 33,932 | 4.22 |
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| 30 | Washington Nationals | 1969 | 2024 | 8,701 | 4,205 | 4,492 | .484 | -287 | 5 | 1 | 1 | 6 | 1052 | 10 | 36,447 | 294,386 | 74,755 | 7,441 | .254 | 37,792 | 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