| | Anaheim Angels, see Los Angeles Angels |
| 1 | Arizona Diamondbacks | 1998 | 2021 | 3,711 | 1,812 | 1,899 | .488 | -87 | 5 | 1 | 1 | 6 | 528 | 2 | 16,854 | 126,931 | 32,488 | 3,927 | .256 | 17,095 | 4.25 |
|---|
| 2 | Atlanta Braves | 1876 | 2021 | 21,655 | 10,773 | 10,728 | .501 | 45 | 20 | 17 | 3 | 26 | 2047 | 53 | 96,487 | 741,504 | 192,664 | 14,120 | .260 | 95,611 | 3.67 |
|---|
| | Also played as Milwaukee Braves, Boston Braves, Boston Bees, Boston Rustlers, Boston Doves, Boston Beaneaters and Boston Red Stockings |
| 3 | Baltimore Orioles | 1901 | 2021 | 18,751 | 8,821 | 9,820 | .473 | -999 | 9 | 7 | 3 | 14 | 1890 | 34 | 80,848 | 637,034 | 164,657 | 13,693 | .258 | 86,244 | 4.04 |
|---|
| | Also played as St. Louis Browns and Milwaukee Brewers |
| | Boston Braves, see Atlanta Braves |
| 4 | Boston Red Sox | 1901 | 2021 | 18,740 | 9,680 | 8,977 | .519 | 703 | 10 | 14 | 9 | 24 | 1852 | 37 | 87,497 | 641,356 | 171,352 | 13,903 | .267 | 83,880 | 3.91 |
|---|
| | Also played as Boston Americans |
| | Brooklyn Dodgers, see Los Angeles Dodgers |
| | California Angels, see Los Angeles Angels |
| 5 | Chicago Cubs | 1876 | 2021 | 21,693 | 11,058 | 10,474 | .514 | 584 | 8 | 17 | 3 | 21 | 2142 | 45 | 99,873 | 742,674 | 194,821 | 14,562 | .262 | 96,323 | 3.68 |
|---|
| | Also played as Chicago Orphans, Chicago Colts and Chicago White Stockings |
| 6 | Chicago White Sox | 1901 | 2021 | 18,746 | 9,368 | 9,275 | .502 | 93 | 5 | 6 | 3 | 10 | 1816 | 32 | 81,715 | 634,818 | 165,237 | 11,691 | .260 | 81,340 | 3.78 |
|---|
| 7 | Cincinnati Reds | 1882 | 2021 | 21,276 | 10,674 | 10,463 | .505 | 211 | 10 | 10 | 5 | 16 | 2053 | 36 | 95,501 | 725,370 | 189,402 | 13,633 | .261 | 94,589 | 3.75 |
|---|
| | Also played as Cincinnati Redlegs and Cincinnati Red Stockings |
| 8 | Cleveland Indians | 1901 | 2021 | 18,747 | 9,554 | 9,102 | .512 | 452 | 10 | 6 | 2 | 15 | 1934 | 34 | 84,901 | 639,256 | 169,598 | 13,327 | .265 | 82,786 | 3.83 |
|---|
| | Also played as Cleveland Naps, Cleveland Bronchos and Cleveland Blues |
| 9 | Colorado Rockies | 1993 | 2021 | 4,459 | 2,096 | 2,363 | .470 | -267 | 0 | 1 | 0 | 5 | 603 | 1 | 22,440 | 153,434 | 41,932 | 5,094 | .273 | 23,528 | 4.98 |
|---|
| 10 | Detroit Tigers | 1901 | 2021 | 18,774 | 9,408 | 9,273 | .504 | 135 | 7 | 11 | 4 | 16 | 1733 | 24 | 86,520 | 640,570 | 169,789 | 13,997 | .265 | 86,109 | 4.00 |
|---|
| 11 | Houston Astros | 1962 | 2021 | 9,418 | 4,683 | 4,730 | .498 | -47 | 10 | 3 | 1 | 14 | 939 | 10 | 39,882 | 319,549 | 81,433 | 7,645 | .255 | 39,680 | 3.81 |
|---|
| | Also played as Houston Colt .45s |
| | Kansas City Athletics, see Oakland Athletics |
| 12 | Kansas City Royals | 1969 | 2021 | 8,270 | 3,963 | 4,305 | .479 | -342 | 8 | 4 | 2 | 9 | 933 | 4 | 36,287 | 283,272 | 74,724 | 6,422 | .264 | 38,164 | 4.25 |
|---|
| 13 | Los Angeles Angels | 1961 | 2021 | 9,576 | 4,778 | 4,795 | .499 | -17 | 9 | 1 | 1 | 10 | 1123 | 12 | 41,584 | 325,212 | 83,645 | 8,490 | .257 | 41,891 | 3.99 |
|---|
| | Also played as Los Angeles Angels of Anaheim, Anaheim Angels and California Angels |
| 14 | Los Angeles Dodgers | 1884 | 2021 | 21,077 | 11,070 | 9,868 | .529 | 1202 | 19 | 25 | 7 | 34 | 1879 | 50 | 94,657 | 718,170 | 187,731 | 13,232 | .261 | 89,321 | 3.53 |
|---|
| | Also played as Brooklyn Dodgers, Brooklyn Robins, Brooklyn Superbas, Brooklyn Bridegrooms, Brooklyn Grooms, Brooklyn Grays and Brooklyn Atlantics |
| 15 | Miami Marlins | 1993 | 2021 | 4,448 | 2,058 | 2,390 | .463 | -332 | 0 | 2 | 2 | 3 | 649 | 5 | 18,912 | 151,387 | 38,805 | 4,027 | .256 | 20,620 | 4.30 |
|---|
| | Also played as Florida Marlins |
| | Milwaukee Braves, see Atlanta Braves |
| 16 | Milwaukee Brewers | 1969 | 2021 | 8,280 | 3,993 | 4,283 | .482 | -290 | 4 | 1 | 0 | 7 | 953 | 7 | 36,714 | 281,361 | 72,343 | 8,012 | .257 | 37,852 | 4.17 |
|---|
| | Also played as Seattle Pilots |
| | Milwaukee Brewers (1901), see Baltimore Orioles |
| 17 | Minnesota Twins | 1901 | 2021 | 18,759 | 8,974 | 9,676 | .481 | -702 | 12 | 6 | 3 | 17 | 1736 | 25 | 82,426 | 640,178 | 168,248 | 11,270 | .263 | 85,776 | 3.99 |
|---|
| | Also played as Washington Senators |
| | Montreal Expos, see Washington Nationals |
| | New York Giants, see San Francisco Giants |
| 18 | New York Mets | 1962 | 2021 | 9,405 | 4,518 | 4,879 | .481 | -361 | 6 | 5 | 2 | 9 | 1140 | 15 | 38,532 | 318,385 | 79,600 | 7,836 | .250 | 39,547 | 3.79 |
|---|
| 19 | New York Yankees | 1903 | 2021 | 18,450 | 10,454 | 7,908 | .569 | 2546 | 19 | 40 | 27 | 56 | 1719 | 46 | 89,708 | 629,312 | 167,580 | 16,419 | .266 | 77,063 | 3.65 |
|---|
| | Also played as New York Highlanders |
| 20 | Oakland Athletics | 1901 | 2021 | 18,714 | 9,113 | 9,514 | .489 | -401 | 17 | 15 | 9 | 29 | 2000 | 41 | 82,949 | 634,728 | 163,959 | 13,483 | .258 | 85,328 | 3.98 |
|---|
| | Also played as Kansas City Athletics and Philadelphia Athletics |
| | Philadelphia Athletics, see Oakland Athletics |
| 21 | Philadelphia Phillies | 1883 | 2021 | 21,083 | 9,894 | 11,074 | .472 | -1180 | 12 | 7 | 2 | 14 | 2117 | 35 | 93,425 | 721,548 | 188,026 | 13,415 | .261 | 99,431 | 3.99 |
|---|
| | Also played as Philadelphia Quakers |
| 22 | Pittsburgh Pirates | 1882 | 2021 | 21,235 | 10,596 | 10,499 | .502 | 97 | 9 | 9 | 5 | 17 | 2035 | 40 | 94,761 | 727,966 | 192,221 | 11,684 | .264 | 94,444 | 3.74 |
|---|
| | Also played as Pittsburgh Alleghenys |
| 23 | San Diego Padres | 1969 | 2021 | 8,286 | 3,835 | 4,449 | .463 | -614 | 5 | 2 | 0 | 6 | 1069 | 12 | 33,309 | 280,192 | 69,875 | 6,596 | .249 | 36,354 | 3.96 |
|---|
| 24 | San Francisco Giants | 1883 | 2021 | 21,160 | 11,247 | 9,750 | .536 | 1497 | 8 | 23 | 8 | 26 | 1854 | 57 | 97,985 | 722,545 | 190,556 | 14,889 | .264 | 90,618 | 3.58 |
|---|
| | Also played as New York Giants and New York Gothams |
| 25 | Seattle Mariners | 1977 | 2021 | 6,989 | 3,291 | 3,696 | .471 | -405 | 3 | 0 | 0 | 4 | 917 | 6 | 31,050 | 238,812 | 61,852 | 6,979 | .259 | 32,946 | 4.34 |
|---|
| | Seattle Pilots, see Milwaukee Brewers |
| | St. Louis Browns, see Baltimore Orioles |
| 26 | St. Louis Cardinals | 1882 | 2021 | 21,278 | 10,991 | 10,135 | .520 | 856 | 14 | 23 | 11 | 30 | 2156 | 47 | 97,591 | 729,614 | 194,097 | 12,440 | .266 | 93,700 | 3.68 |
|---|
| | Also played as St. Louis Perfectos, St. Louis Browns and St. Louis Brown Stockings |
| 27 | Tampa Bay Rays | 1998 | 2021 | 3,707 | 1,775 | 1,932 | .479 | -157 | 3 | 2 | 0 | 6 | 527 | 1 | 16,414 | 126,280 | 32,225 | 3,817 | .255 | 17,215 | 4.30 |
|---|
| | Also played as Tampa Bay Devil Rays |
| 28 | Texas Rangers | 1961 | 2021 | 9,564 | 4,556 | 5,002 | .477 | -446 | 7 | 2 | 0 | 8 | 1181 | 8 | 43,072 | 326,687 | 84,568 | 9,476 | .259 | 45,089 | 4.28 |
|---|
| | Also played as Washington Senators |
| 29 | Toronto Blue Jays | 1977 | 2021 | 6,987 | 3,458 | 3,526 | .495 | -68 | 6 | 2 | 2 | 8 | 860 | 8 | 32,329 | 239,610 | 62,418 | 7,537 | .260 | 32,154 | 4.24 |
|---|
| 30 | Washington Nationals | 1969 | 2021 | 8,274 | 4,044 | 4,226 | .489 | -182 | 5 | 1 | 1 | 6 | 974 | 10 | 34,674 | 279,955 | 71,111 | 7,045 | .254 | 35,520 | 3.89 |
|---|
| | Also played as Montreal Expos |
| | Washington Senators (1901-1960), see Minnesota Twins |
| | Washington Senators (1961-1971), see Texas Rangers |
Inactive Franchises