| AAA | American Association | Buffalo Bisons | Pilot Field | Buffalo,New York | PIT | 1,132,183 | 1 | 607,822 |
| AAA | American Association | Denver Zephyrs | Mile High Stadium | Denver,Colorado | MIL | 346,300 | 4 | 333,147 |
| AAA | American Association | Indianapolis Indians | Bush Stadium | Indianapolis,Indiana | MON | 303,143 | 6 | 243,371 |
| AAA | American Association | Iowa Cubs | Sec Taylor Stadium | Des Moines,Iowa | CHN | 260,404 | 7 | 267,922 |
| AAA | American Association | Louisville Redbirds | Cardinal Stadium | Louisville,Kentucky | SLN | 580,270 | 2 | 649,870 |
| AAA | American Association | Nashville Sounds | Herschel Greer Stadium | Nashville,Tennessee | CIN | 457,845 | 3 | 356,335 |
| AAA | American Association | Oklahoma City 89ers | All Sports Stadium | Oklahoma City,Oklahoma | TEX | 251,480 | 8 | 285,696 |
| AAA | American Association | Omaha Royals | Johnny Rosenblatt Stadium | Omaha,Nebraska | KCA | 335,517 | 5 | 228,013 |
| AAA | International League | Columbus Clippers | Cooper Stadium | Columbus,Ohio | NYA | 518,355 | 1 | 548,880 |
| AAA | International League | Pawtucket Red Sox | McCoy Stadium | Pawtucket,Rhode Island | BOS | 278,129 | 5 | 203,917 |
| AAA | International League | Richmond Braves | The Diamond | Richmond,Virginia | ATL | 455,686 | 2 | 322,808 |
| AAA | International League | Rochester Red Wings | Silver Stadium | Rochester,New York | BAL | 284,394 | 4 | 265,194 |
| AAA | International League | Scranton/Wilkes-Barre Red Barons | Lackawanna County Stadium | Scranton,Pennsylvania | PHI | 444,400 | 3 | -- |
| AAA | International League | Syracuse Chiefs | MacArthur Stadium | Syracuse,New York | TOR | 233,078 | 6 | 189,659 |
| AAA | International League | Tidewater Tides | Met Park | Norfolk,Virginia | NYN | 216,429 | 7 | 165,228 |
| AAA | International League | Toledo Mud Hens | Ned Skeldon Stadium | Toledo,Ohio | DET | 182,776 | 8 | 176,608 |
| AAA | Pacific Coast League | Albuquerque Dukes | Albuquerque Sports Stadium | Albuquerque,New Mexico | LAN | 318,896 | 1 | 269,328 |
| AAA | Pacific Coast League | Calgary Cannons | Foothills Stadium | Calgary,Alberta | SEA | 316,616 | 2 | 299,502 |
| AAA | Pacific Coast League | Colorado Springs Sky Sox | Sky Sox Stadium | Colorado Springs,Colorado | CLE | 203,955 | 7 | 168,248 |
| AAA | Pacific Coast League | Edmonton Trappers | John Ducey Park | Edmonton,Alberta | CAL | 230,728 | 6 | 231,939 |
| AAA | Pacific Coast League | Las Vegas Stars | Cashman Field | Las Vegas,Nevada | SDN | 315,517 | 3 | 305,964 |
| AAA | Pacific Coast League | Phoenix Firebirds | Phoenix Municipal Stadium | Phoenix,Arizona | SFN | 199,157 | 8 | 169,775 |
| AAA | Pacific Coast League | Portland Beavers | Civic Stadium | Portland,Oregon | MIN | 188,459 | 9 | 174,691 |
| AAA | Pacific Coast League | Tacoma Tigers | Cheney Stadium | Tacoma,Washington | OAK | 313,007 | 4 | 246,597 |
| AAA | Pacific Coast League | Tucson Toros | Hi Corbett Field | Tucson,Arizona | HOU | 186,270 | 10 | 140,104 |
| AAA | Pacific Coast League | Vancouver Canadians | Nat Bailey Stadium | Vancouver,British Columbia | CHA | 281,812 | 5 | 260,807 |
| AA | Eastern League | Albany/Colonie Yankees | Heritage Park | Albany,New York | NYA | 192,862 | 3 | 267,850 |
| AA | Eastern League | Canton/Akron Indians | Thurman Munson Memorial Stadium | Canton,Ohio | CLE | 204,001 | 1 | -- |
| AA | Eastern League | Hagerstown Suns | Municipal Stadium | Hagerstown,Maryland | BAL | 161,630 | 6 | -- |
| AA | Eastern League | Harrisburg Senators | Riverside Stadium | Harrisburg,Pennsylvania | PIT | 200,196 | 2 | 214,541 |
| AA | Eastern League | London Tigers | Labatt Memorial Park | London,Ontario | DET | 167,679 | 5 | -- |
| AA | Eastern League | New Britain Red Sox | Beehive Field | New Britain,Connecticut | BOS | 100,943 | 7 | 82,734 |
| AA | Eastern League | Reading Phillies | Reading Municipal Memorial Stadium | Reading,Pennsylvania | PHI | 178,734 | 4 | 94,532 |
| AA | Eastern League | Williamsport Bills | Bowman Field | Williamsport,Pennsylvania | SEA | 66,767 | 8 | 88,863 |
| AA | Southern League | Birmingham Barons | Hoover Metropolitan Stadium | Birmingham,Alabama | CHA | 281,754 | 1 | 181,934 |
| AA | Southern League | Charlotte Knights | Knights Castle | Charlotte,North Carolina | CHN | 157,720 | 6 | 113,003 |
| AA | Southern League | Chattanooga Lookouts | Engel Stadium | Chattanooga,Tennessee | CIN | 156,677 | 7 | 121,941 |
| AA | Southern League | Columbus Mudcats | Golden Park | Columbus,Georgia | HOU | 95,689 | 9 | 115,840 |
| AA | Southern League | Greenville Braves | Greenville Municipal Stadium | Greenville,South Carolina | ATL | 211,347 | 4 | 210,295 |
| AA | Southern League | Huntsville Stars | Joe W. Davis Stadium | Huntsville,Alabama | OAK | 220,941 | 2 | 251,477 |
| AA | Southern League | Jacksonville Expos | Sam W. Wolfson Baseball Park | Jacksonville,Florida | MON | 220,803 | 3 | 142,138 |
| AA | Southern League | Knoxville Blue Jays | Bill Meyer Stadium | Knoxville,Tennessee | TOR | 69,776 | 10 | 106,185 |
| AA | Southern League | Memphis Chicks | Tim McCarver Stadium | Memphis,Tennessee | KCA | 175,334 | 5 | 216,577 |
| AA | Southern League | Orlando Sun Rays | Tinker Field | Orlando,Florida | MIN | 97,803 | 8 | 69,734 |
| AA | Texas League | Arkansas Travelers | Ray Winder Field | Little Rock,Arkansas | SLN | 296,428 | 1 | 231,887 |
| AA | Texas League | El Paso Diablos | Dudley Field | El Paso,Texas | MIL | 228,261 | 2 | 209,814 |
| AA | Texas League | Jackson Mets | Smith-Wills Stadium | Jackson,Mississippi | NYN | 87,153 | 8 | 127,227 |
| AA | Texas League | Midland Angels | Angels Stadium | Midland,Texas | CAL | 135,518 | 7 | 125,967 |
| AA | Texas League | San Antonio Missions | V.J. Keefe Memorial Stadium | San Antonio,Texas | LAN | 158,402 | 6 | 121,432 |
| AA | Texas League | Shreveport Captains | Fair Grounds Field | Shreveport,Louisiana | SFN | 210,669 | 4 | 150,016 |
| AA | Texas League | Tulsa Drillers | Tulsa County Stadium | Tulsa,Oklahoma | TEX | 218,755 | 3 | 160,102 |
| AA | Texas League | Wichita Wranglers | Lawrence-Dumont Stadium | Wichita,Kansas | SDN | 176,424 | 5 | 110,739 |
| A+ | California League | Bakersfield Dodgers | Sam Lynn Ballpark | Bakersfield,California | LAN | 123,572 | 2 | 91,244 |
| A+ | California League | Modesto A's | John Thurman Field | Modesto,California | OAK | 87,256 | 4 | 73,326 |
| A+ | California League | Palm Springs Angels | Palm Springs Stadium | Palm Springs,California | CAL | 69,521 | 9 | 53,361 |
| A+ | California League | Reno Silver Sox | Moana Stadium | Reno,Nevada | - | 75,842 | 7 | 85,931 |
| A+ | California League | Riverside Red Wave | Riverside Sports Complex | Riverside,California | SDN | 80,154 | 6 | 60,509 |
| A+ | California League | Salinas Spurs | Salinas Municipal Stadium | Salinas,California | - | 47,609 | 10 | 46,102 |
| A+ | California League | San Bernardino Spirit | Perris Hill Park | San Bernardino,California | SEA | 184,791 | 1 | 156,775 |
| A+ | California League | San Jose Giants | San Jose Municipal Stadium | San Jose,California | SFN | 108,458 | 3 | 72,849 |
| A+ | California League | Stockton Ports | Billy Hebert Field | Stockton,California | MIL | 72,734 | 8 | 68,570 |
| A+ | California League | Visalia Oaks | Recreation Park | Visalia,California | MIN | 83,946 | 5 | 64,165 |
| A+ | Carolina League | Durham Bulls | Durham Athletic Park | Durham,North Carolina | ATL | 272,202 | 1 | 205,123 |
| A+ | Carolina League | Frederick Keys | Harry Grove Stadium | Frederick,Maryland | BAL | 175,077 | 2 | -- |
| A+ | Carolina League | Kinston Indians | Grainger Stadium | Kinston,North Carolina | CLE | 165,930 | 3 | 66,719 |
| A+ | Carolina League | Lynchburg Red Sox | Lynchburg City Stadium | Lynchburg,Virginia | BOS | 121,581 | 4 | 85,638 |
| A+ | Carolina League | Peninsula Pilots | War Memorial Stadium | Hampton,Virginia | - | 89,360 | 5 | 62,791 |
| A+ | Carolina League | Prince William Cannons | G. Richard Pfitzner Stadium | Woodbridge,Virginia | NYA | 88,154 | 6 | 114,665 |
| A+ | Carolina League | Salem Buccaneers | Salem Municipal Stadium | Salem,Virginia | PIT | 74,375 | 7 | 90,417 |
| A+ | Carolina League | Winston-Salem Spirits | Ernie Shore Field | Winston-Salem,North Carolina | CHN | 20,059 | 8 | 104,762 |
| A+ | Florida State League | Baseball City Royals | Baseball City Stadium | Davenport,Florida | KCA | 39,220 | 12 | 63,746 |
| A+ | Florida State League | Charlotte Rangers | Charlotte County Stadium | Port Charlotte,Florida | TEX | 122,060 | 2 | 108,757 |
| A+ | Florida State League | Clearwater Phillies | Jack Russell Memorial Stadium | Clearwater,Florida | PHI | 68,591 | 5 | 37,477 |
| A+ | Florida State League | Dunedin Blue Jays | Grant Field | Dunedin,Florida | TOR | 41,231 | 11 | 27,223 |
| A+ | Florida State League | Fort Lauderdale Yankees | Fort Lauderdale Stadium | Fort Lauderdale,Florida | NYA | 43,307 | 10 | 39,255 |
| A+ | Florida State League | Lakeland Tigers | Joker Marchant Stadium | Lakeland,Florida | DET | 54,409 | 7 | 40,282 |
| A+ | Florida State League | Miami Miracle | University Park Stadium | Miami,Florida | - | 14,972 | 14 | 27,099 |
| A+ | Florida State League | Osceola Astros | Osceola County Stadium | Kissimmee,Florida | HOU | 53,566 | 8 | 30,043 |
| A+ | Florida State League | Sarasota White Sox | Ed Smith Stadium | Sarasota,Florida | CHA | 52,061 | 9 | -- |
| A+ | Florida State League | St. Lucie Mets | Thomas J. White Stadium | Port St. Lucie,Florida | NYN | 66,041 | 6 | 68,150 |
| A+ | Florida State League | St. Petersburg Cardinals | Al Lang Field | St. Petersburg,Florida | SLN | 202,383 | 1 | 114,729 |
| A+ | Florida State League | Vero Beach Dodgers | Holman Stadium | Vero Beach,Florida | LAN | 87,178 | 3 | 65,552 |
| A+ | Florida State League | West Palm Beach Expos | West Palm Beach Municipal Stadium | West Palm Beach,Florida | MON | 84,316 | 4 | 89,159 |
| A+ | Florida State League | Winter Haven Red Sox | Chain of Lakes Park | Winter Haven,Florida | BOS | 28,009 | 13 | 19,099 |
| A | Midwest League | Appleton Foxes | Goodland Field | Appleton,Wisconsin | KCA | 76,223 | 11 | 71,532 |
| A | Midwest League | Beloit Brewers | Harry C. Pohlman Field | Beloit,Wisconsin | MIL | 93,166 | 8 | 94,255 |
| A | Midwest League | Burlington Braves | Community Field | Burlington,Iowa | ATL | 82,936 | 10 | 68,631 |
| A | Midwest League | Cedar Rapids Reds | Veterans Field | Cedar Rapids,Iowa | CIN | 181,189 | 4 | 146,321 |
| A | Midwest League | Clinton Giants | Riverview Stadium | Clinton,Iowa | SFN | 68,487 | 12 | 106,755 |
| A | Midwest League | Kenosha Twins | Simmons Field | Kenosha,Wisconsin | MIN | 63,392 | 13 | 65,725 |
| A | Midwest League | Madison Muskies | Warner Park | Madison,Wisconsin | OAK | 84,064 | 9 | 104,029 |
| A | Midwest League | Peoria Chiefs | Meinen Field | Peoria,Illinois | CHN | 225,757 | 1 | 172,767 |
| A | Midwest League | Quad Cities Angels | John O'Donnell Stadium | Davenport,Iowa | CAL | 191,825 | 3 | 114,144 |
| A | Midwest League | Rockford Expos | Marinelli Field | Rockford,Illinois | MON | 139,338 | 6 | 158,674 |
| A | Midwest League | South Bend White Sox | Stanley Covelski Regional Stadium | South Bend,Indiana | CHA | 203,197 | 2 | 171,444 |
| A | Midwest League | Springfield Cardinals | Lanphier Park | Springfield,Illinois | SLN | 164,012 | 5 | 150,354 |
| A | Midwest League | Waterloo Diamonds | Riverfront Stadium | Waterloo,Iowa | - | 93,555 | 7 | 77,005 |
| A | Midwest League | Wausau Timbers | Athletic Park | Wausau,Wisconsin | SEA | 49,302 | 14 | 55,336 |
| A | South Atlantic League | Asheville Tourists | McCormick Field | Asheville,North Carolina | HOU | 96,178 | 4 | 88,352 |
| A | South Atlantic League | Augusta Pirates | Heaton Stadium | Augusta,Georgia | PIT | 119,153 | 3 | 123,626 |
| A | South Atlantic League | Charleston (sc) Rainbows | College Park | Charleston,South Carolina | SDN | 78,438 | 7 | 99,524 |
| A | South Atlantic League | Charleston (Wv) Wheelers | Walt Powell Park | Charleston,West Virginia | CHN | 130,293 | 2 | 111,781 |
| A | South Atlantic League | Columbia Mets | Capital City Stadium | Columbia,South Carolina | NYN | 85,962 | 6 | 98,271 |
| A | South Atlantic League | Fayetteville Generals | J.P. Riddle Stadium | Fayetteville,North Carolina | DET | 65,931 | 10 | 76,276 |
| A | South Atlantic League | Gastonia Rangers | Sims Legion Park | Gastonia,North Carolina | TEX | 51,290 | 11 | 62,898 |
| A | South Atlantic League | Greensboro Hornets | World War Memorial Stadium | Greensboro,North Carolina | CIN | 157,927 | 1 | 174,374 |
| A | South Atlantic League | Myrtle Beach Blue Jays | Watson Stadium | Myrtle Beach,South Carolina | TOR | 68,779 | 9 | 76,196 |
| A | South Atlantic League | Savannah Cardinals | Grayson Stadium | Savannah,Georgia | SLN | 76,287 | 8 | 41,729 |
| A | South Atlantic League | Spartanburg Phillies | Duncan Park | Spartanburg,South Carolina | PHI | 94,120 | 5 | 40,638 |
| A | South Atlantic League | Sumter Braves | Riley Park | Sumter,South Carolina | ATL | 36,706 | 12 | 35,739 |
| A- | New York-Penn League | Auburn Astros | Falcon Park | Auburn,New York | HOU | 38,155 | 11 | 27,664 |
| A- | New York-Penn League | Batavia Clippers | Dwyer Stadium | Batavia,New York | PHI | 38,704 | 10 | 31,975 |
| A- | New York-Penn League | Elmira Pioneers | Dunn Field | Elmira,New York | BOS | 56,595 | 5 | 58,875 |
| A- | New York-Penn League | Erie Orioles | Ainsworth Field | Erie,Pennsylvania | BAL | 56,025 | 6 | 48,148 |
| A- | New York-Penn League | Geneva Cubs | McDonough Park | Geneva,New York | CHN | 32,252 | 13 | 25,023 |
| A- | New York-Penn League | Hamilton Redbirds | Bernie Arbour Memorial Stadium | Hamilton,New York | SLN | 60,192 | 3 | 60,380 |
| A- | New York-Penn League | Jamestown Expos | College Stadium | Jamestown,New York | MON | 35,039 | 12 | 43,629 |
| A- | New York-Penn League | Niagara Falls Rapids | Sal Maglie Stadium | Niagara Falls,New York | DET | 54,138 | 7 | 34,640 |
| A- | New York-Penn League | Oneonta Yankees | Damaschke Field | Oneonta,New York | NYA | 52,955 | 8 | 45,578 |
| A- | New York-Penn League | Pittsfield Mets | Wahconah Park | Pittsfield,Massachusetts | NYN | 96,931 | 1 | -- |
| A- | New York-Penn League | St. Catharines Blue Jays | Community Park | St. Catharines,Ontario | TOR | 31,594 | 14 | 41,645 |
| A- | New York-Penn League | Utica Blue Eox | Donovan Stadium at Murnane Field | Utica,New York | CHA | 56,836 | 4 | 45,847 |
| A- | New York-Penn League | Watertown Indians | Duffy Fairgrounds | Watertown,New York | CLE | 63,928 | 2 | 40,307 |
| A- | New York-Penn League | Welland Pirates | Welland Stadium | Welland,Ontario | PIT | 41,217 | 9 | -- |
| A- | Northwest League | Bellingham Mariners | Joe Martin Field | Bellingham,Washington | SEA | 31,685 | 7 | 17,254 |
| A- | Northwest League | Bend Bucks | Vince Genna Stadium | Bend,Oregon | CAL | 40,526 | 6 | 34,438 |
| A- | Northwest League | Boise Hawks | Memorial Stadium | Boise,Idaho | - | 127,594 | 2 | 69,434 |
| A- | Northwest League | Eugene Emeralds | Civic Stadium | Eugene,Oregon | KCA | 141,134 | 1 | 111,282 |
| A- | Northwest League | Everett Giants | Everett Memorial Stadium | Everett,Washington | SFN | 70,714 | 4 | 53,830 |
| A- | Northwest League | Salem Dodgers | Chemeketa Community College Field | Salem,Oregon | LAN | 30,049 | 8 | 34,327 |
| A- | Northwest League | Southern Oregon A's | Miles Field | Medford,Oregon | OAK | 69,641 | 5 | 64,974 |
| A- | Northwest League | Spokane Indians | Avista Stadium | Spokane,Washington | SDN | 124,844 | 3 | 88,803 |
| Rk | Appalachian League | Bluefield Orioles | Bowen Field | Bluefield,West Virginia | BAL | 25,548 | 6 | 29,010 |
| Rk | Appalachian League | Bristol Tigers | Devault Memorial Stadium | Bristol,Virginia | DET | 20,008 | 7 | 14,187 |
| Rk | Appalachian League | Burlington Indians | Burlington Athletic Stadium | Burlington,North Carolina | CLE | 55,695 | 2 | 70,273 |
| Rk | Appalachian League | Elizabethton Twins | Joe O'Brien Field | Elizabethton,Tennessee | MIN | 17,952 | 8 | 11,469 |
| Rk | Appalachian League | Johnson City Cardinals | Howard Johnson Field | Johnson City,Tennessee | SLN | 33,450 | 5 | 18,609 |
| Rk | Appalachian League | Kingsport Mets | Dobyns-Bennett | Kingsport,Tennessee | NYN | 38,791 | 3 | 30,949 |
| Rk | Appalachian League | Martinsville Phillies | Hooker Field | Martinsville,Virginia | PHI | 58,189 | 1 | 48,980 |
| Rk | Appalachian League | Princeton Pirates | H.P. Hunnicut Field | Princeton,West Virginia | PIT | 33,754 | 4 | 31,275 |
| Rk | Appalachian League | Pulaski Braves | Calfee Park | Pulaski,Virginia | ATL | 11,284 | 10 | 14,290 |
| Rk | Appalachian League | Wytheville Cubs | Withers Field | Wytheville,Virginia | CHN | 16,839 | 9 | 20,791 |
| Rk | Pioneer League | Billings Mustangs | Cobb Field | Billings,Montana | CIN | 77,405 | 2 | 96,434 |
| Rk | Pioneer League | Butte Copper Kings | Alumni Coliseum | Butte,Montana | TEX | 26,711 | 6 | 23,587 |
| Rk | Pioneer League | Great Falls Dodgers | | Great Falls,Montana | LAN | 69,637 | 3 | 72,091 |
| Rk | Pioneer League | Helena Brewers | Kindrick Field | Helena,Montana | MIL | 39,645 | 5 | 24,009 |
| Rk | Pioneer League | Idaho Falls Braves | McDermott Field | Idaho Falls,Idaho | ATL | 65,773 | 4 | 39,807 |
| Rk | Pioneer League | Medicine Hat Blue Jays | Athletic Park | Medicine Hat,Alberta | TOR | 13,624 | 8 | 32,971 |
| Rk | Pioneer League | Pocatello Giants | Halliwell Park | Pocatello,Idaho | SFN | 17,117 | 7 | 22,080 |
| Rk | Pioneer League | Salt Lake City Trappers | Derks Field | Salt Lake City,Utah | - | 173,256 | 1 | 128,189 |
