Attendance information is available for all MLB seasons since 1903. Fans were not allowed in stadiums during the 2020 Covid-shortened season.
| Arizona Diamondbacks | NL | 2,036,216 | 81 | 25,138 | 2,648,840 | 14,110 | 48,165 | 425,087 | 330,623 | 273,686 | 297,816 | 336,270 | 372,734 | Chase Field |
| Atlanta Braves | NL | 2,020,914 | 81 | 24,950 | 2,242,131 | 12,582 | 51,220 | 331,710 | 291,951 | 376,281 | 252,866 | 260,717 | 507,389 | Turner Field, Fort Bragg Field |
| Baltimore Orioles | AL | 2,172,344 | 81 | 26,819 | 2,575,551 | 11,142 | 45,785 | 223,417 | 416,860 | 493,375 | 293,055 | 357,668 | 387,969 | Oriole Park at Camden Yards |
| Boston Red Sox | AL | 2,955,434 | 81 | 36,487 | 2,615,524 | 31,011 | 38,378 | 483,684 | 495,596 | 480,053 | 670,125 | 450,300 | 375,676 | Fenway Park |
| Chicago Cubs | NL | 3,232,420 | 81 | 39,906 | 2,839,239 | 32,734 | 41,702 | 332,695 | 623,122 | 442,507 | 619,032 | 646,034 | 569,030 | Wrigley Field |
| Chicago White Sox | AL | 1,746,293 | 80 | 21,829 | 2,283,300 | 11,418 | 39,553 | 170,939 | 321,562 | 341,062 | 341,535 | 282,355 | 288,840 | Guaranteed Rate Field |
| Cincinnati Reds | NL | 1,894,085 | 81 | 23,384 | 2,583,533 | 10,784 | 43,683 | 302,601 | 294,294 | 470,334 | 225,772 | 261,728 | 339,356 | Great American Ballpark |
| Cleveland Indians | AL | 1,591,667 | 81 | 19,650 | 2,128,323 | 10,298 | 34,493 | 128,750 | 232,907 | 221,316 | 337,683 | 346,700 | 324,311 | Progressive Field |
| Colorado Rockies | NL | 2,602,524 | 81 | 32,130 | 2,548,764 | 20,227 | 49,360 | 353,604 | 355,798 | 503,779 | 406,218 | 550,692 | 432,433 | Coors Field |
| Detroit Tigers | AL | 2,493,859 | 80 | 31,173 | 2,293,425 | 21,671 | 45,049 | 311,187 | 363,587 | 519,019 | 308,231 | 608,434 | 383,401 | Comerica Park |
| Houston Astros | AL | 2,306,623 | 81 | 28,477 | 2,271,334 | 18,243 | 43,332 | 299,753 | 407,191 | 329,150 | 488,609 | 426,198 | 355,722 | Minute Maid Park |
| Kansas City Royals | AL | 2,557,712 | 81 | 31,577 | 2,266,362 | 22,615 | 40,030 | 364,070 | 445,588 | 444,904 | 416,199 | 369,974 | 516,977 | Kauffman Stadium |
| Los Angeles Dodgers | NL | 3,703,312 | 81 | 45,720 | 2,669,701 | 38,858 | 53,621 | 558,571 | 571,324 | 572,274 | 678,719 | 701,889 | 620,535 | Dodger Stadium |
| Milwaukee Brewers | NL | 2,315,244 | 81 | 28,583 | 2,507,309 | 17,374 | 44,643 | 364,192 | 446,532 | 369,155 | 442,189 | 423,363 | 269,813 | American Family Field |
| Minnesota Twins | AL | 1,963,912 | 81 | 24,246 | 2,215,948 | 16,938 | 40,638 | 302,814 | 258,801 | 418,278 | 384,154 | 255,753 | 344,112 | Target Field |
| New York Mets | NL | 2,789,602 | 80 | 34,870 | 2,463,347 | 22,113 | 44,466 | 366,708 | 543,554 | 363,740 | 574,784 | 472,533 | 468,283 | Citi Field |
| New York Yankees | AL | 3,063,405 | 81 | 37,820 | 2,506,196 | 27,532 | 48,339 | 449,981 | 511,446 | 601,261 | 405,277 | 563,235 | 532,205 | Yankee Stadium II |
| Oakland Athletics | AL | 1,521,506 | 81 | 18,784 | 2,390,449 | 10,068 | 36,067 | 230,595 | 295,074 | 232,038 | 258,480 | 241,454 | 263,865 | Oakland-Alameda County Coliseum |
| Philadelphia Phillies | NL | 1,915,144 | 81 | 23,644 | 2,493,478 | 15,247 | 45,229 | 298,683 | 290,895 | 352,152 | 330,017 | 344,034 | 299,363 | Citizens Bank Park |
| Pittsburgh Pirates | NL | 2,249,201 | 80 | 28,115 | 2,430,586 | 14,890 | 39,500 | 275,474 | 334,969 | 478,455 | 379,895 | 363,346 | 417,062 | PNC Park |
| San Diego Padres | NL | 2,351,422 | 81 | 29,030 | 2,660,659 | 19,013 | 44,317 | 355,900 | 369,171 | 421,086 | 333,188 | 386,255 | 485,822 | Petco Park |
| San Francisco Giants | NL | 3,365,256 | 81 | 41,546 | 2,605,302 | 41,052 | 42,238 | 580,952 | 539,960 | 541,217 | 544,545 | 621,313 | 537,269 | Oracle Park |
| Seattle Mariners | AL | 2,267,928 | 81 | 27,999 | 2,293,037 | 13,376 | 47,065 | 281,196 | 411,390 | 366,527 | 277,132 | 505,254 | 426,429 | T-Mobile Park |
| St. Louis Cardinals | NL | 3,444,490 | 81 | 42,525 | 2,487,400 | 34,286 | 47,608 | 484,795 | 728,691 | 441,431 | 713,041 | 495,822 | 580,710 | Busch Stadium III |
| Tampa Bay Rays | AL | 1,286,163 | 81 | 15,879 | 2,437,344 | 10,117 | 40,135 | 237,810 | 196,452 | 230,219 | 214,114 | 220,823 | 186,745 | Tropicana Field |
| Texas Rangers | AL | 2,710,402 | 81 | 33,462 | 2,232,432 | 20,720 | 49,289 | 439,702 | 459,083 | 465,125 | 392,091 | 433,512 | 520,889 | Rangers Ballpark in Arlington |
| Toronto Blue Jays | AL | 3,392,099 | 81 | 41,878 | 2,435,293 | 23,726 | 48,871 | 438,865 | 538,377 | 433,213 | 851,502 | 548,379 | 581,763 | Rogers Centre |
| Washington Nationals | NL | 2,481,938 | 81 | 30,641 | 2,402,788 | 17,161 | 42,000 | 313,734 | 448,184 | 357,220 | 493,825 | 429,359 | 439,616 | Nationals Park |
| Miami Marlins | NL | 1,712,417 | 80 | 21,405 | 2,309,310 | 10,637 | 36,911 | 197,765 | 298,619 | 343,714 | 317,270 | 239,152 | 315,897 | LoanDepot Park |
| Los Angeles Angels | AL | 3,016,142 | 81 | 37,236 | 2,322,769 | 27,531 | 45,007 | 448,759 | 620,795 | 526,061 | 391,041 | 481,723 | 547,763 | Angel Stadium of Anaheim |
| 30 record(s) |