| | Anaheim Angels, see Los Angeles Angels |
| 1 | Arizona Diamondbacks | 1998 | 2022 | 3,905 | 1,895 | 2,010 | .485 | -115 | 5 | 1 | 1 | 6 | 561 | 2 | 17,675 | 133,378 | 33,995 | 4,125 | .255 | 18,027 | 4.25 |
| 2 | Atlanta Braves | 1876 | 2022 | 21,852 | 10,894 | 10,804 | .502 | 90 | 21 | 18 | 4 | 27 | 2078 | 53 | 97,476 | 748,221 | 194,359 | 14,426 | .260 | 96,354 | 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 | 2022 | 18,947 | 8,907 | 9,930 | .473 | -1023 | 9 | 7 | 3 | 14 | 1932 | 34 | 81,666 | 643,632 | 166,238 | 13,915 | .258 | 87,237 | 4.05 |
| | Also played as St. Louis Browns and Milwaukee Brewers |
| | Boston Braves, see Atlanta Braves |
| 4 | Boston Red Sox | 1901 | 2022 | 18,935 | 9,777 | 9,075 | .519 | 702 | 10 | 14 | 9 | 25 | 1881 | 38 | 88,424 | 648,028 | 173,073 | 14,124 | .267 | 84,825 | 3.92 |
| | Also played as Boston Americans |
| | Brooklyn Dodgers, see Los Angeles Dodgers |
| | California Angels, see Los Angeles Angels |
| 5 | Chicago Cubs | 1876 | 2022 | 21,887 | 11,138 | 10,588 | .513 | 550 | 8 | 17 | 3 | 21 | 2193 | 45 | 100,713 | 749,198 | 196,425 | 14,782 | .262 | 97,345 | 3.69 |
| | Also played as Chicago Orphans, Chicago Colts and Chicago White Stockings |
| 6 | Chicago White Sox | 1901 | 2022 | 18,943 | 9,472 | 9,368 | .503 | 104 | 6 | 6 | 3 | 11 | 1837 | 34 | 82,595 | 641,566 | 166,989 | 11,898 | .260 | 82,185 | 3.78 |
| 7 | Cincinnati Reds | 1882 | 2022 | 21,470 | 10,759 | 10,572 | .504 | 187 | 10 | 10 | 5 | 16 | 2095 | 36 | 96,359 | 731,816 | 190,971 | 13,854 | .261 | 95,542 | 3.76 |
| | Also played as Cincinnati Redlegs and Cincinnati Red Stockings |
| 8 | Cleveland Guardians | 1901 | 2022 | 18,946 | 9,656 | 9,199 | .512 | 457 | 10 | 6 | 2 | 15 | 1959 | 35 | 85,784 | 645,974 | 171,283 | 13,525 | .265 | 83,630 | 3.83 |
| | Also played as Cleveland Indians, Cleveland Naps, Cleveland Bronchos and Cleveland Blues |
| 9 | Colorado Rockies | 1993 | 2022 | 4,655 | 2,185 | 2,470 | .469 | -285 | 0 | 1 | 0 | 5 | 623 | 1 | 23,354 | 160,129 | 43,667 | 5,303 | .273 | 24,558 | 4.98 |
| 10 | Detroit Tigers | 1901 | 2022 | 18,971 | 9,491 | 9,387 | .503 | 104 | 7 | 11 | 4 | 16 | 1757 | 24 | 87,246 | 647,114 | 171,324 | 14,154 | .265 | 86,971 | 4.00 |
| 11 | Houston Astros | 1962 | 2022 | 9,615 | 4,802 | 4,808 | .500 | -6 | 11 | 4 | 1 | 15 | 961 | 10 | 40,818 | 326,220 | 83,111 | 7,920 | .255 | 40,400 | 3.80 |
| | Also played as Houston Colt .45s |
| | Kansas City Athletics, see Oakland Athletics |
| 12 | Kansas City Royals | 1969 | 2022 | 8,468 | 4,050 | 4,416 | .478 | -366 | 8 | 4 | 2 | 9 | 960 | 4 | 37,085 | 289,942 | 76,377 | 6,603 | .263 | 39,125 | 4.25 |
| 13 | Los Angeles Angels | 1961 | 2022 | 9,772 | 4,864 | 4,905 | .498 | -41 | 9 | 1 | 1 | 10 | 1165 | 12 | 42,343 | 331,723 | 85,133 | 8,695 | .257 | 42,748 | 3.99 |
| | Also played as Los Angeles Angels of Anaheim, Anaheim Angels and California Angels |
| 14 | Los Angeles Dodgers | 1884 | 2022 | 21,271 | 11,205 | 9,927 | .530 | 1278 | 19 | 25 | 7 | 35 | 1913 | 51 | 95,679 | 724,763 | 189,413 | 13,518 | .261 | 89,943 | 3.52 |
| | Also played as Brooklyn Dodgers, Brooklyn Robins, Brooklyn Superbas, Brooklyn Bridegrooms, Brooklyn Grooms, Brooklyn Grays and Brooklyn Atlantics |
| 15 | Miami Marlins | 1993 | 2022 | 4,645 | 2,140 | 2,505 | .461 | -365 | 0 | 2 | 2 | 3 | 687 | 5 | 19,644 | 157,913 | 40,328 | 4,211 | .255 | 21,503 | 4.29 |
| | Also played as Florida Marlins |
| | Milwaukee Braves, see Atlanta Braves |
| 16 | Milwaukee Brewers | 1969 | 2022 | 8,474 | 4,100 | 4,370 | .484 | -270 | 5 | 1 | 0 | 8 | 982 | 7 | 37,609 | 287,848 | 73,904 | 8,267 | .257 | 38,645 | 4.16 |
| | Also played as Seattle Pilots |
| | Milwaukee Brewers (1901), see Baltimore Orioles |
| 17 | Minnesota Twins | 1901 | 2022 | 18,954 | 9,074 | 9,771 | .482 | -697 | 12 | 6 | 3 | 17 | 1778 | 28 | 83,289 | 646,727 | 169,855 | 11,521 | .263 | 86,647 | 3.99 |
| | Also played as Washington Senators |
| | Montreal Expos, see Washington Nationals |
| | New York Giants, see San Francisco Giants |
| 18 | New York Mets | 1962 | 2022 | 9,606 | 4,628 | 4,970 | .482 | -342 | 6 | 5 | 2 | 9 | 1174 | 16 | 39,440 | 325,124 | 81,310 | 8,055 | .250 | 40,372 | 3.79 |
| 19 | New York Yankees | 1903 | 2022 | 18,648 | 10,576 | 7,984 | .570 | 2592 | 19 | 40 | 27 | 57 | 1751 | 47 | 90,673 | 635,906 | 169,159 | 16,726 | .266 | 77,801 | 3.65 |
| | Also played as New York Highlanders |
| 20 | Oakland Athletics | 1901 | 2022 | 18,909 | 9,193 | 9,629 | .488 | -436 | 17 | 15 | 9 | 29 | 2038 | 41 | 83,708 | 641,193 | 165,417 | 13,681 | .258 | 86,200 | 3.98 |
| | Also played as Kansas City Athletics and Philadelphia Athletics |
| | Philadelphia Athletics, see Oakland Athletics |
| 21 | Philadelphia Phillies | 1883 | 2022 | 21,280 | 10,000 | 11,165 | .472 | -1165 | 12 | 7 | 2 | 14 | 2149 | 36 | 94,332 | 728,173 | 189,659 | 13,672 | .260 | 100,264 | 3.99 |
| | Also played as Philadelphia Quakers |
| 22 | Pittsburgh Pirates | 1882 | 2022 | 21,431 | 10,672 | 10,619 | .501 | 53 | 9 | 9 | 5 | 17 | 2082 | 40 | 95,506 | 734,417 | 193,708 | 11,859 | .264 | 95,469 | 3.75 |
| | Also played as Pittsburgh Alleghenys |
| 23 | San Diego Padres | 1969 | 2022 | 8,482 | 3,929 | 4,551 | .463 | -622 | 5 | 2 | 0 | 6 | 1103 | 12 | 34,170 | 286,794 | 71,473 | 6,777 | .249 | 37,233 | 3.97 |
| 24 | San Francisco Giants | 1883 | 2022 | 21,356 | 11,360 | 9,833 | .536 | 1527 | 9 | 23 | 8 | 27 | 1884 | 57 | 98,906 | 729,133 | 192,159 | 15,142 | .264 | 91,416 | 3.58 |
| | Also played as New York Giants and New York Gothams |
| 25 | Seattle Mariners | 1977 | 2022 | 7,185 | 3,402 | 3,781 | .474 | -379 | 3 | 0 | 0 | 4 | 955 | 6 | 31,896 | 245,386 | 63,384 | 7,208 | .258 | 33,754 | 4.33 |
| | Seattle Pilots, see Milwaukee Brewers |
| | St. Louis Browns, see Baltimore Orioles |
| 26 | St. Louis Cardinals | 1882 | 2022 | 21,471 | 11,105 | 10,214 | .521 | 891 | 14 | 23 | 11 | 31 | 2182 | 49 | 98,516 | 736,123 | 195,773 | 12,687 | .266 | 94,452 | 3.68 |
| | Also played as St. Louis Perfectos, St. Louis Browns and St. Louis Brown Stockings |
| 27 | Tampa Bay Rays | 1998 | 2022 | 3,902 | 1,889 | 2,013 | .484 | -124 | 4 | 2 | 0 | 7 | 567 | 1 | 17,343 | 132,841 | 33,831 | 4,042 | .255 | 17,974 | 4.26 |
| | Also played as Tampa Bay Devil Rays |
| 28 | Texas Rangers | 1961 | 2022 | 9,759 | 4,635 | 5,118 | .475 | -483 | 7 | 2 | 0 | 8 | 1214 | 9 | 43,866 | 333,245 | 86,118 | 9,681 | .258 | 46,026 | 4.29 |
| | Also played as Washington Senators |
| 29 | Toronto Blue Jays | 1977 | 2022 | 7,184 | 3,570 | 3,611 | .497 | -41 | 6 | 2 | 2 | 8 | 894 | 8 | 33,304 | 246,276 | 64,180 | 7,821 | .261 | 32,959 | 4.23 |
| 30 | Washington Nationals | 1969 | 2022 | 8,473 | 4,109 | 4,360 | .485 | -251 | 5 | 1 | 1 | 6 | 1013 | 10 | 35,516 | 286,660 | 72,817 | 7,233 | .254 | 36,651 | 3.92 |
| | Also played as Montreal Expos |
| | Washington Senators (1901-1960), see Minnesota Twins |
| | Washington Senators (1961-1971), see Texas Rangers |
Inactive Franchises