There are 14 Minor League Baseball (MiLB) leagues and 202 teams in operation across the United States, Dominican Republic, and Canada, which are affiliated with Major League Baseball (MLB) teams. They are organized by one of five classes (from highest to lowest): Triple-A, Double-A, High-A, Single-A, and Rookie. Of these, 120 teams in 11 leagues (from Triple-A to Single-A) are each affiliated with one MLB team through a standardized professional development license.1 Additionally, three leagues consisting of a total of 82 Rookie teams are located at MLB spring training complexes in Arizona2 and Florida,3 as well as in the Dominican Republic.4 These affiliated leagues contest their seasons during the MLB season. The Arizona Fall League, consisting of six teams, operates in the autumn after the conclusion of the MiLB and MLB seasons to develop top prospects at various classifications.
Ten independent baseball leagues, consisting of a total of 101 teams, have no direct affiliation with Major League Baseball, though the American Association, Atlantic League, Frontier League, and Pioneer League are designated MLB Partner Leagues and the MLB Draft League is an MLB-associated showcase league.5
Leagues affiliated with Major League Baseball
Triple-A leagues
The Triple-A classification is the highest level of play in MiLB, just below MLB. A total of 30 affiliated teams compete at this level, with 20 teams in the International League and 10 teams in the Pacific Coast League.6
International League
Pacific Coast League
| Team | Division | City | State | Stadium | Capacity | Affiliate |
|---|---|---|---|---|---|---|
| Albuquerque Isotopes | East | Albuquerque | New Mexico | Rio Grande Credit Union Field at Isotopes Park | 13,500 | Colorado Rockies |
| El Paso Chihuahuas | East | El Paso | Texas | Southwest University Park | 9,500 | San Diego Padres |
| Las Vegas Aviators | West | Las Vegas | Nevada | Las Vegas Ballpark | 10,000 | Athletics |
| Oklahoma City Comets | East | Oklahoma City | Oklahoma | Chickasaw Bricktown Ballpark | 9,000 | Los Angeles Dodgers |
| Reno Aces | West | Reno | Nevada | Greater Nevada Field | 9,013 | Arizona Diamondbacks |
| Round Rock Express | East | Round Rock | Texas | Dell Diamond | 11,631 | Texas Rangers |
| Sacramento River Cats | West | West Sacramento | California | Sutter Health Park | 14,014 | San Francisco Giants |
| Salt Lake Bees | West | South Jordan | Utah | Ballpark at America First Square | 8,500 | Los Angeles Angels |
| Sugar Land Space Cowboys | East | Sugar Land | Texas | Constellation Field | 7,500 | Houston Astros |
| Tacoma Rainiers | West | Tacoma | Washington | Cheney Stadium | 6,500 | Seattle Mariners |
Double-A leagues
The Double-A classification is the second-highest level of play in Minor League Baseball. A total of 30 teams compete at this level, with 12 teams in the Eastern League, 8 teams in the Southern League, and 10 teams in the Texas League.6
Eastern League
Southern League
| Team | Division | City | State | Stadium | Capacity | Affiliate |
|---|---|---|---|---|---|---|
| Biloxi Shuckers | South | Biloxi | Mississippi | Keesler Federal Park | 6,000 | Milwaukee Brewers |
| Birmingham Barons | North | Birmingham | Alabama | Regions Field | 8,500 | Chicago White Sox |
| Chattanooga Lookouts | North | Chattanooga | Tennessee | Erlanger Park | 8,032 | Cincinnati Reds |
| Columbus Clingstones | South | Columbus | Georgia | Synovus Park | 5,500 | Atlanta Braves |
| Knoxville Smokies | North | Knoxville | Tennessee | Covenant Health Park | 6,355 | Chicago Cubs |
| Montgomery Biscuits | South | Montgomery | Alabama | Dabos Park | 7,000 | Tampa Bay Rays |
| Pensacola Blue Wahoos | South | Pensacola | Florida | Blue Wahoos Stadium | 5,038 | Miami Marlins |
| Rocket City Trash Pandas | North | Madison | Alabama | Toyota Field | 7,000 | Los Angeles Angels |
Texas League
| Team | Division | City | State | Stadium | Capacity | Affiliate |
|---|---|---|---|---|---|---|
| Amarillo Sod Poodles | South | Amarillo | Texas | Hodgetown | 6,631 | Arizona Diamondbacks |
| Arkansas Travelers | North | North Little Rock | Arkansas | Dickey–Stephens Park | 5,800 | Seattle Mariners |
| Corpus Christi Hooks | South | Corpus Christi | Texas | Whataburger Field | 7,679 | Houston Astros |
| Frisco RoughRiders | South | Frisco | Texas | Riders Field | 10,316 | Texas Rangers |
| Midland RockHounds | South | Midland | Texas | Momentum Bank Ballpark | 6,669 | Athletics |
| Northwest Arkansas Naturals | North | Springdale | Arkansas | Arvest Ballpark | 7,305 | Kansas City Royals |
| San Antonio Missions | South | San Antonio | Texas | Nelson W. Wolff Municipal Stadium | 9,200 | San Diego Padres |
| Springfield Cardinals | North | Springfield | Missouri | Route 66 Stadium | 10,486 | St. Louis Cardinals |
| Tulsa Drillers | North | Tulsa | Oklahoma | ONEOK Field | 7,833 | Los Angeles Dodgers |
| Wichita Wind Surge | North | Wichita | Kansas | Equity Bank Park | 10,000 | Minnesota Twins |
High-A leagues
High-A is the third-highest level of play in Minor League Baseball. A total of 30 teams compete at this level, with 12 teams in the Midwest League, 12 teams in the South Atlantic League, and 6 teams in the Northwest League.6
Midwest League
South Atlantic League
Northwest League
| Team | City | State/Province | Stadium | Capacity | Affiliate |
|---|---|---|---|---|---|
| Eugene Emeralds | Eugene | Oregon | PK Park | 4,000 | San Francisco Giants |
| Everett AquaSox | Everett | Washington | Funko Field | 3,682 | Seattle Mariners |
| Hillsboro Hops | Hillsboro | Oregon | Hillsboro Hops Ballpark | 6,000 | Arizona Diamondbacks |
| Spokane Indians | Spokane | Washington | Avista Stadium | 6,803 | Colorado Rockies |
| Tri-City Dust Devils | Pasco | Washington | Gesa Stadium | 3,654 | Los Angeles Angels |
| Vancouver Canadians | Vancouver | British Columbia | Rogers Field at Nat Bailey Stadium | 6,013 | Toronto Blue Jays |
Single-A leagues
Single-A is the fourth-highest level of play in Minor League Baseball. A total of 30 teams compete at this level, with 12 teams in the Carolina League, 10 teams in the Florida State League, and 8 teams in the California League.6
Carolina League
Florida State League
| Team | Division | City (all in Florida) | Stadium | Capacity | Affiliate |
|---|---|---|---|---|---|
| Bradenton Marauders | West | Bradenton | LECOM Park | 8,500 | Pittsburgh Pirates |
| Clearwater Threshers | West | Clearwater | BayCare Ballpark | 8,500 | Philadelphia Phillies |
| Daytona Tortugas | East | Daytona Beach | Jackie Robinson Ballpark | 4,200 | Cincinnati Reds |
| Dunedin Blue Jays | West | Dunedin | TD Ballpark | 5,509 | Toronto Blue Jays |
| Fort Myers Mighty Mussels | West | Fort Myers | Hammond Stadium | 7,500 | Minnesota Twins |
| Jupiter Hammerheads | East | Jupiter | Roger Dean Chevrolet Stadium | 6,871 | Miami Marlins |
| Lakeland Flying Tigers | West | Lakeland | Publix Field at Joker Marchant Stadium | 8,500 | Detroit Tigers |
| Palm Beach Cardinals | East | Jupiter | Roger Dean Chevrolet Stadium | 6,871 | St. Louis Cardinals |
| St. Lucie Mets | East | Port St. Lucie | Clover Park | 7,347 | New York Mets |
| Tampa Tarpons | West | Tampa | George M. Steinbrenner Field | 11,026 | New York Yankees |
California League
| Team | Division | City (all in California) | Stadium | Capacity | Affiliate |
|---|---|---|---|---|---|
| Fresno Grizzlies | North | Fresno | Chukchansi Park | 10,650 | Colorado Rockies |
| Inland Empire 66ers | South | San Bernardino | San Manuel Stadium | 5,000 | Seattle Mariners |
| Lake Elsinore Storm | South | Lake Elsinore | Lake Elsinore Diamond | 7,866 | San Diego Padres |
| Ontario Tower Buzzers | North | Ontario | ONT Field | 6,000 | Los Angeles Dodgers |
| Rancho Cucamonga Quakes | South | Rancho Cucamonga | LoanMart Field | 6,200 | Los Angeles Angels |
| San Jose Giants | North | San Jose | Excite Ballpark | 4,200 | San Francisco Giants |
| Stockton Ports | North | Stockton | Banner Island Ballpark | 5,300 | Athletics |
| Visalia Rawhide | South | Visalia | Valley Strong Ballpark | 2,468 | Arizona Diamondbacks |
Rookie leagues
The Rookie classification is the lowest level of play in Minor League Baseball. A total of 85 teams compete at this level, with 18 teams in the Arizona Complex League,7 20 teams in the Florida Complex League,8 and 47 teams in the Dominican Summer League.9
Arizona Complex League
Florida Complex League
Dominican Summer League
Fall leagues
Arizona Fall League
The Arizona Fall League, an off-season league owned and operated by Major League Baseball, consists of six teams in the state of Arizona.10 Each team is affiliated with five MLB organizations.
MLB Partner Leagues
MLB Partner Leagues consist of 50 teams with no direct affiliation with individual MLB organizations, but collaborate on promoting the sport in North America. Three leagues (the American Association, Atlantic League, and Frontier League) had been fully independent leagues; a fourth, the Pioneer League, had previously been affiliated with Minor League Baseball as a "Rookie Advanced" league, the second-lowest rung on the minor league ladder. Additionally, MLB supports a 6-team showcase league for future and newly professional prospects called the MLB Draft League; all teams in the MLB Draft league were formerly Minor League Baseball teams.
American Association of Professional Baseball
The American Association of Professional Baseball consists of 12 teams.11
| Team | Division | City | State/Province | Stadium | Capacity |
|---|---|---|---|---|---|
| Chicago Dogs | East | Rosemont | Illinois | Impact Field | 6,300 |
| Cleburne Railroaders | East | Cleburne | Texas | La Moderna Field | 2,500 |
| Fargo-Moorhead RedHawks | West | Fargo | North Dakota | Newman Outdoor Field | 4,513 |
| Gary SouthShore RailCats | East | Gary | Indiana | U.S. Steel Yard | 6,139 |
| Kane County Cougars | East | Geneva | Illinois | Northwestern Medicine Field | 10,923 |
| Kansas City Monarchs | West | Kansas City | Kansas | Legends Field | 6,537 |
| Lake Country DockHounds | East | Oconomowoc | Wisconsin | Wisconsin Brewing Company Park | 3,641 |
| Lincoln Saltdogs | West | Lincoln | Nebraska | Haymarket Park | 8,486 |
| Milwaukee Milkmen | East | Franklin | Wisconsin | Franklin Field | 4,000 |
| Sioux City Explorers | West | Sioux City | Iowa | Security National Bank Field at Lewis & Clark Park | 3,631 |
| Sioux Falls Canaries | West | Sioux Falls | South Dakota | Sioux Falls Stadium | 4,500 |
| Winnipeg Goldeyes | West | Winnipeg | Manitoba | Blue Cross Park | 7,561 |
Atlantic League of Professional Baseball
The Atlantic League of Professional Baseball consists of 10 teams.12
| Team | Division | City | State | Stadium | Capacity |
|---|---|---|---|---|---|
| Charleston Dirty Birds | South | Charleston | West Virginia | GoMart Ballpark | 4,500 |
| Gastonia Ghost Peppers | South | Gastonia | North Carolina | CaroMont Health Park | 5,000 |
| Hagerstown Flying Boxcars | North | Hagerstown | Maryland | Meritus Park | 5,500 |
| High Point Rockers | South | High Point | North Carolina | Truist Point | 8,500 |
| Lancaster Stormers | North | Lancaster | Pennsylvania | Penn Medicine Park | 8,000 |
| Lexington Legends | South | Lexington | Kentucky | Legends Field | 9,994 |
| Long Island Ducks | North | Central Islip | New York | Fairfield Properties Ballpark | 8,002 |
| Southern Maryland Blue Crabs | South | Waldorf | Maryland | Regency Furniture Stadium | 6,200 |
| Staten Island FerryHawks | North | Staten Island | New York | SIUH Community Park | 8,171 |
| York Revolution | North | York | Pennsylvania | WellSpan Park | 7,500 |
Frontier League
The Frontier League consists of 18 teams.13
Pioneer League
The Pioneer League consists of 12 teams.
| Team | City | State | Stadium | Capacity |
|---|---|---|---|---|
| Billings Mustangs | Billings | Montana | Dehler Park | 6,500 |
| Boise Hawks | Boise | Idaho | Memorial Stadium | 3,452 |
| Glacier Range Riders | Kalispell | Montana | Glacier Bank Park | 5,500 |
| Great Falls Voyagers | Great Falls | Montana | Centene Stadium | 2,500 |
| Idaho Falls Chukars | Idaho Falls | Idaho | Melaleuca Field | 3,400 |
| Long Beach Coast | Long Beach | California | Blair Field | 3,238 |
| Missoula PaddleHeads | Missoula | Montana | Ogren Park at Allegiance Field | 3,500 |
| Modesto Roadsters | Modesto | California | John Thurman Field | 4,000 |
| Oakland Ballers | Oakland | California | Raimondi Park | 2,500 |
| Ogden Raptors | Ogden | Utah | Lindquist Field | 8,262 |
| RedPocket Mobiles | Traveling team | |||
| Yuba-Sutter Freebirds | Marysville | California | Bryant Field | 3,500 |
MLB Draft League
The MLB Draft League is a hybrid amateur–professional showcase league supported by MLB but run independently. During the first half of each season, the league operates as an amateur collegiate summer baseball league;14 after a break for each July's MLB draft, play resumes for the season's remaining games with paid professional players who have exhausted their amateur eligibility.15
Non-partner independent leagues
The Banana Ball Championship League is an independent, professional barnstorming exhibition league that officially began play in 2026, but grew out of exhibition games played under an alternative set of rules called Banana Ball played by the Savannah Bananas starting in 2018.1617
| Team | City | State | Stadium | Capacity |
|---|---|---|---|---|
| Savannah Bananas | Savannah | Georgia | Grayson Stadium | 5,000 |
| Party Animals | Traveling/Barnstorming teams | |||
| Firefighters | ||||
| Texas Tailgaters | ||||
| Loco Beach Coconuts | ||||
| Indianapolis Clowns | ||||
Canadian Baseball League
The Canadian Baseball League consists of 9 teams, all in Southern Ontario; from 1919 until 2025, it operated as a semi-professional league known as the Intercounty Baseball League.18
Empire Professional Baseball League
The independent Empire Professional Baseball League consists of 4 teams.19
| Team | City | State | Stadium |
|---|---|---|---|
| Malone Border Hounds | Malone | New York | American Legion Post 219 Veterans Field |
| North Country Thunderbirds | Plattsburgh | Chip Cummings Field | |
| Saranac Lake Surge | Saranac Lake | Petrova Field | |
| Tupper Lake Riverpigs | Tupper Lake | Municipal Park |
Pecos League
The independent Pecos League consists of 16 teams.20
| Team | Division | City | State | Stadium |
|---|---|---|---|---|
| Alpine Cowboys | Mountain | Alpine | Texas | Kokernot Field |
| Austin Weirdos | Mountain | Austin | Texas | Parque Zaragosa |
| Bakersfield Train Robbers | Pacific | Bakersfield | California | Sam Lynn Ballpark |
| Blackwell FlyCatchers | Mountain | Blackwell | Oklahoma | Morgan Field |
| Dublin Leprechauns | Pacific | Dublin | California | Fallon Sports Park |
| Garden City Wind | Mountain | Garden City | Kansas | Clint Lightner Field |
| Martinez Sturgeon | Pacific | Martinez | California | Waterfront Park |
| Marysville Drakes | Pacific | Marysville | California | Bryant Field |
| North Platte 80s | Mountain | North Platte | Nebraska | Bill Wood Field |
| Pecos Bills | Mountain | Pecos | Texas | Cyclone Ballpark |
| Roswell Invaders | Mountain | Roswell | New Mexico | Joe Baumann Park |
| San Rafael Pacifics | Pacific | San Rafael | California | Albert Park |
| Santa Fe Fuego | Mountain | Santa Fe | New Mexico | Fort Marcy Park |
| Trinidad Triggers | Mountain | Trinidad | Colorado | Central Park |
| Tucson Saguaros | Mountain | Tucson | Arizona | Kino Sports Complex |
| Vallejo Seaweed | Pacific | Vallejo | California | Wilson Park |
United Shore Professional Baseball League
The independent, single-site United Shore Professional Baseball League consists of four teams.21
| Team | City | State | Stadium | Capacity |
|---|---|---|---|---|
| Birmingham Bloomfield Beavers | Utica | Michigan | UWM Field | 4,500 |
| Eastside Diamond Hoppers | ||||
| Utica Unicorns | ||||
| Westside Woolly Mammoths |
The Women's Pro Baseball League is an independent, professional women's baseball league that will begin play in 2026. All 4 teams, which have yet to be given home stadiums, will play their inaugural season in a single stadium in Illinois.22
| Team | City | State | Stadium | Capacity |
|---|---|---|---|---|
| Boston Hunters | Springfield | Illinois | Robin Roberts Stadium | 5,200 |
| Los Angeles Queens | ||||
| New York Heights | ||||
| San Francisco Firebells |
See also
See also
References
References
- "MiLB Teams by Affiliate: Team Names and Logos for each Club | Minor League Baseball". MLB.com. Retrieved April 30, 2026.
- "About the Arizona Complex League | Minor League Baseball". MLB.com. Retrieved April 30, 2026.
- "About the Florida Complex League | Minor League Baseball". MLB.com. Retrieved April 30, 2026.
- "About the Dominican Summer League | Minor League Baseball". MLB.com. Retrieved April 30, 2026.
- "American Association, Frontier League Now MLB Partner Leagues". Ballpark Digest. August Publishing. September 24, 2020. Retrieved October 13, 2020.
- Mayo, Jonathan (February 12, 2021). "MLB Announces New Minors Teams, Leagues". Major League Baseball. Retrieved February 12, 2021.
- "Arizona League Divisions". Arizona League. Minor League Baseball. Retrieved May 28, 2021.
- "Gulf Coast League Divisions". Gulf Coast League. Minor League Baseball. Retrieved May 28, 2021.
- "Dominican Summer League Rosters". Minor League Baseball. Retrieved October 17, 2020.
- "About". Arizona Fall League. Major League Baseball. Retrieved October 13, 2020.
- "American Association Announces 2021 Schedule". American Association of Independent Professional Baseball. Archived from the original on February 8, 2021. Retrieved February 22, 2021.
- "League Directory". Atlantic League of Professional Baseball. Retrieved October 13, 2020.
- "2024 Frontier League Media Guide" (PDF). frontierleague.com. Frontier League. pp. 14–74. Retrieved August 30, 2024.
- Cite error: The named reference
BDPresidentwas invoked but never defined (see the help page). - "What is the MLB Draft League". MLBDraftLeague.com. MLB Draft League. Retrieved June 25, 2023.
- Licata, Chris (January 22, 2026). "Savannah Bananas Disclose Average Player Salaries Exceeding $100,000". sports.yahoo.com. Athlon Sports.
- Padgett, Larry (June 5, 2024). "Lander University Was Part of Banana Ball's Early History". Lander University.
- "A New Era for Independent Professional Baseball in Canada Begins". Retrieved November 24, 2025.
- "Teams". Empire Professional Baseball League. Retrieved October 13, 2020.
- "Home". Pecos League. Retrieved April 22, 2021.
- "Teams". United Shore Professional Baseball League. Retrieved October 13, 2020.
- Reynolds, Geno (November 17, 2025). "Robin Roberts Stadium named official venue of the WPBL 2026 season". NewsChannel 20. Sinclair Broadcast Group. Retrieved November 17, 2025.