Links in the Team Name column are to the team’s official Web site (except for Oneonta, which doesn’t have one).
Links in the Stadium Name column are to my stadium photos and descriptions. If there's no live link in the Stadium Name column, I haven’t visited to take photos ... yet.
For the teams in affiliated Minor League Baseball, the team in orange bold italics is the Major League Baseball team with which the club is affiliated.
| The Old Parks section within each league includes parks at which I saw a game in that league. |
| A purple background indicates that the entire league is defunct. |
| A maroon background denotes a demolished park; |
| a green background indicates a park in use for 2009 in a different professional league. |
| Team Name | Location | Stadium Name | |
| MAJOR LEAGUE BASEBALL | |||
| 2010 Teams | |||
| Arizona Diamondbacks | Phoenix, Ariz. | Chase Field | |
| Atlanta Braves | Atlanta, Ga. | Turner Field | |
| Baltimore Orioles | Baltimore, Md. | Oriole Park at Camden Yards | |
| Boston Red Sox | Boston, Mass. | Fenway Park | |
| Chicago Cubs | Chicago, Ill. | Wrigley Field | |
| Chicago White Sox | Chicago, Ill. | U.S. Cellular Field | |
| Cincinnati Reds | Cincinnati, Ohio | Great American Ball Park | |
| Cleveland Indians | Cleveland, Ohio | Progressive Field | |
| Colorado Rockies | Denver, Colo. | Coors Field | |
| Detroit Tigers | Detroit, Mich. | Comerica Park | |
| Florida Marlins | Miami, Fla. | Land Shark Stadium | |
| Houston Astros | Houston, Texas | Minute Maid Park | |
| Kansas City Royals | Kansas City, Mo. | Kauffman Stadium | |
| Los Angeles Angels of Anaheim | Anaheim, Calif. | Angel Field of Anaheim | |
| Los Angeles Dodgers | Los Angeles, Calif. | Dodger Stadium | |
| Milwaukee Brewers | Milwaukee, Wis. | Miller Park | |
| Minnesota Twins | Minneapolis, Minn. | Target Field | |
| New York Mets | Flushing, N.Y. | Citi Field | |
| New York Yankees | Bronx, N.Y. | Yankee Stadium (2009) | |
| Oakland Athletics | Oakland, Calif. | Oakland-Alameda Co. Coliseum | |
| Philadelphia Phillies | Philadelphia, Pa. | Citizens Bank Park | |
| Pittsburgh Pirates | Pittsburgh, Pa. | PNC Park at North Shore | |
| St. Louis Cardinals | St. Louis, Mo. | Busch Stadium (2006) | |
| San Diego Padres | San Diego, Calif. | Petco Park | |
| San Francisco Giants | San Francisco, Calif. | AT&T Park | |
| Seattle Mariners | Seattle, Wash. | Safeco Field | |
| Tampa Bay Rays | St. Petersburg, Fla. | Tropicana Field | |
| Texas Rangers | Arlington, Texas | Rangers Ballpark in Arlington | |
| Toronto Blue Jays | Toronto, Ont. | Rogers Centre | |
| Washington Nationals | Washington, D.C. | Nationals Park | |
| Old Parks | |||
| Atlanta Braves | Atlanta, Ga. | Fulton Co. Stadium | |
| Baltimore Orioles | Baltimore, Md. | Memorial Stadium | |
| Cincinnati Reds | Cincinnati, Ohio | Riverfront Stadium | |
| Cleveland Indians | Cleveland, Ohio | Cleveland Municipal Stadium | |
| Detroit Tigers | Detroit, Mich. | Tiger Stadium | |
| Houston Astros | Houston, Texas | Astrodome | |
| Milwaukee Brewers | Milwaukee, Wis. | Milwaukee Co. Stadium | |
| Minnesota Twins | Minneapolis, Minn. | Hubert H. Humphrey Metrodome | |
| Montréal Expos | Montréal, P.Q. | Stade olympique | |
| Montréal Expos | San Juan, P.R. | Estadio Hiram Bithorn | |
| New York Mets | Flushing, N.Y. | Shea Stadium | |
| New York Yankees | Bronx, N.Y. | Yankee Stadium (1923/76) | |
| Philadelphia Phillies | Philadelphia, Pa. | Veterans Stadium | |
| Pittsburgh Pirates | Pittsburgh, Pa. | Three Rivers Stadium | |
| St. Louis Cardinals | St. Louis, Mo. | Busch Stadium (1966) | |
| San Diego Padres | San Diego, Calif. | Qualcomm Stadium | |
| San Francisco Giants | San Francisco, Calif. | Candlestick Park | |
| Seattle Mariners | Seattle, Wash. | Kingdome | |
| Washington Nationals | Washington, D.C. | Robert F. Kennedy Stadium | |
| INTERNATIONAL LEAGUE (Triple-A) | |||
| 2010 Teams | |||
| Buffalo Bisons Mets | Buffalo, N.Y. | Coca-Cola Field | |
| Charlotte Knights White Sox | Fort Mill, S.C. | Knights Stadium | |
| Columbus Clippers Indians | Columbus, Ohio | Huntington Park | |
| Durham Bulls Rays | Durham, N.C. | Durham Bulls Athletic Park | |
| Gwinnett Braves Braves | Lawrenceville, Ga. | Gwinnett Stadium | |
| Indianapolis Indians Pirates | Indianapolis, Ind. | Victory Field | |
| Lehigh Valley IronPigs Phillies | Allentown, Pa. | Coca-Cola Park | |
| Louisville Bats Reds | Louisville, Ky. | Louisville Slugger Field | |
| Norfolk Tides Orioles | Norfolk, Va. | Harbor Park | |
| Pawtucket Red Sox Red Sox | Pawtucket, R.I. | McCoy Stadium | |
| Rochester Red Wings Twins | Rochester, N.Y. | Frontier Field | |
| Scranton/Wilkes-Barre Yankees Yankees | Moosic, Pa. | PNC Field | |
| Syracuse Chiefs Nationals | Syracuse, N.Y. | Alliance Bank Stadium | |
| Toledo Mud Hens Tigers | Toledo, Ohio | Fifth Third Field | |
| Old Parks | |||
| Columbus Clippers | Columbus, Ohio | Cooper Stadium | |
| Ottawa Lynx | Ottawa, Ont. | Ottawa Stadium | |
| Richmond Braves | Richmond, Va. | The Diamond | |
| Rochester Red Wings | Rochester, N.Y. | Silver Stadium | |
| Syracuse Chiefs | Syracuse, N.Y. | MacArthur Stadium | |
| Toledo Mud Hens | Maumee, Ohio | Ned Skeldon Stadium | |
| AMERICAN ASSOCIATION (Triple-A, disbanded 1997) | |||
| Old Parks | |||
| Buffalo Bisons | Buffalo, N.Y. | Pilot Field | |
| Indianapolis Indians | Indianapolis, Ind. | Victory Field | |
| Louisville Redbirds | Louisville, Ky. | Cardinal Stadium | |
| Oklahoma City 89ers | Oklahoma City, Okla. | All Sports Stadium | |
| PACIFIC COAST LEAGUE (Triple-A) | |||
| 2010 Teams | |||
| Albuquerque Isotopes Dodgers | Albuquerque, N.M. | Isotopes Park | |
| Colorado Springs Sky Sox Rockies | Colorado Springs, Colo. | Security Service Field | |
| Fresno Grizzlies Giants | Fresno, Calif. | Chukchansi Park | |
| Iowa Cubs Cubs | Des Moines, Iowa | Sec Taylor Field at Principal Park | |
| Las Vegas 51s Blue Jays | Las Vegas, Nev. | Cashman Field | |
| Memphis Redbirds Cardinals | Memphis, Tenn. | AutoZone Park | |
| Nashville Sounds Brewers | Nashville, Tenn. | Herschel Greer Stadium | |
| New Orleans Zephyrs Marlins | Metairie, La. | Zephyr Field | |
| Oklahoma Redhawks Rangers | Oklahoma City, Okla. | AT&T Bricktown Ballpark | |
| Omaha Royals Royals | Omaha, Neb. | Johnny Rosenblatt Stadium | |
| Portland Beavers Padres | Portland, Ore. | PGE Park | |
| Reno Aces Diamondbacks | Reno, Nev. | Reno Aces Ballpark | |
| Round Rock Express Astros | Round Rock, Texas | The Dell Diamond | |
| Sacramento RiverCats Athletics | West Sacramento, Calif. | Raley Field | |
| Salt Lake Bees Angels | Salt Lake City, Utah | Franklin Covey Field | |
| Tacoma Rainiers Mariners | Tacoma, Wash. | Cheney Stadium | |
| Old Parks | |||
| Calgary Cannons | Calgary, Alta. | Foothills Stadium | |
| Edmonton Trappers | Edmonton, Alta. | TELUS Field | |
| Edmonton Trappers | Yuma, Ariz. | Desert Sun Stadium | |
| Memphis Redbirds | Memphis, Tenn. | Tim McCarver Stadium | |
| Phoenix Firebirds | Scottsdale, Ariz. | Scottsdale Stadium | |
| Tucson Sidewinders | Tucson, Ariz. | Tucson Electric Park | |
| Vancouver Canadians | Vancouver, B.C. | Nat Bailey Stadium | |
| EASTERN LEAGUE (Double-A) | |||
| 2010 Teams | |||
| Akron Aeros Indians | Akron, Ohio | Canal Park | |
| Altoona Curve Pirates | Altoona, Pa. | Blair Co. Ballpark | |
| Binghamton Mets Mets | Binghamton, N.Y. | NYSEG Stadium | |
| Bowie Baysox Orioles | Bowie, Md. | Prince George’s Stadium | |
| Erie SeaWolves Tigers | Erie, Pa. | Jerry Uht Park | |
| Harrisburg Senators Nationals | Harrisburg, Pa. | Metro Bank Park | |
| New Britain Rock Cats Twins | New Britain, Conn. | New Britain Stadium | |
| New Hampshire Fisher Cats Blue Jays | Manchester, N.H. | MerchantsAuto.com Park | |
| Portland Sea Dogs Red Sox | Portland, Me. | Hadlock Field | |
| Reading Phillies Phillies | Reading, Pa. | FirstEnergy Stadium | |
| Richmond Giants | Richmond, Va. | The Diamond | |
| Trenton Thunder Yankees | Trenton, N.J. | Mercer Co. Waterfront Park | |
| Old Parks | |||
| Albany-Colonie Yankees | Colonie, N.Y. | Heritage Park | |
| Bowie Baysox | Baltimore, Md. | Memorial Stadium | |
| Canton-Akron Indians | Canton, Ohio | Thurman Munson Memorial Stadium | |
| Hagerstown Suns | Hagerstown, Md. | Municipal Stadium | |
| New Britain Red Sox | New Britain, Conn. | Beehive Field | |
| New Hampshire Fisher Cats | Manchester, N.H. | Gill Stadium | |
| New Haven Ravens | West Haven, Conn. | Yale Field | |
| Norwich Navigators | Norwich, Conn. | Sen. Thomas J. Dodd Memorial Stadium | |
| Williamsport Bills | Williamsport, Pa. | Bowman Field | |
| SOUTHERN LEAGUE (Double-A) | |||
| 2010 Teams | |||
| Birmingham Barons White Sox | Hoover, Ala. | Regions Park | |
| Carolina Mudcats Reds | Zebulon, N.C. | Five County Stadium | |
| Chattanooga Lookouts Dodgers | Chattanooga, Tenn. | BellSouth Park | |
| Huntsville Stars Brewers | Huntsville, Ala. | Joe W. Davis Municipal Stadium | |
| Jacksonville Suns Marlins | Jacksonville, Fla. | Baseball Grounds of Jacksonville | |
| Mississippi Braves Braves | Pearl, Miss. | Trustmark Park | |
| Mobile BayBears Diamondbacks | Mobile, Ala. | Hank Aaron Stadium | |
| Montgomery Biscuits Rays | Montgomery, Ala. | Montgomery Riverwalk Stadium | |
| Tennessee Smokies Cubs | Sevierville, Tenn. | Smokies Park | |
| West Tenn Diamond Jaxx Mariners | Jackson, Tenn. | Pringles Park | |
| Old Parks | |||
| Chattanooga Lookouts | Chattanooga, Tenn. | Engel Stadium | |
| Greenville Braves | Greenville, S.C. | Municipal Stadium | |
| Jacksonville Suns | Jacksonville, Fla. | Wolfson Park | |
| Knoxville Smokies | Knoxville, Tenn. | Bill Meyer Stadium | |
| Orlando Rays | Lake Buena Vista, Fla. | Disney’s Wide World of Sports | |
| TEXAS LEAGUE (Double-A) | |||
| 2010 Teams | |||
| Arkansas Travelers Angels | North Little Rock, Ark. | Dickey-Stephens Park | |
| Corpus Christi Hooks Astros | Corpus Christi, Texas | Whataburger Field | |
| Frisco RoughRiders Rangers | Frisco, Texas | Dr Pepper Ballpark | |
| Midland Rockhounds Athletics | Midland, Texas | First American Bank Ballpark | |
| Northwest Arkansas Naturals Royals | Springdale, Ark. | Arvest Ballpark | |
| San Antonio Missions Padres | San Antonio, Texas | Nelson W. Wolff Municipal Stadium | |
| Springfield Cardinals Cardinals | Springfield, Mo. | Hammons Field | |
| Tulsa Drillers Rockies | Tulsa, Okla. | ONEOK Field | |
| Old Parks | |||
| Arkansas Travelers | Little Rock, Ark. | Ray Winder Field | |
| El Paso Diablos | El Paso, Texas | Cohen Stadium | |
| Jackson Generals | Jackson, Miss. | Smith-Wills Stadium | |
| Midland Rockhounds | Midland, Texas | Christensen Stadium | |
| Round Rock Express | Round Rock, Texas | The Dell Diamond | |
| Shreveport Captains | Shreveport, La. | Fair Grounds Field | |
| Tulsa Drillers | Tulsa, Okla. | Drillers Stadium | |
| Wichita Wranglers | Wichita, Kan. | Lawrence-Dumont Stadium | |
| CALIFORNIA LEAGUE (High A) | |||
| 2010 Teams | |||
| Bakersfield Blaze Rangers | Bakersfield, Calif. | Sam Lynn Ball Park | |
| High Desert Mavericks Mariners | Adelanto, Calif. | Mavericks Stadium | |
| Inland Empire 66ers Dodgers | San Bernardino, Calif. | Arrowhead Credit Union Park | |
| Lake Elsinore Storm Padres | Lake Elsinore, Calif. | Lake Elsinore Diamond | |
| Lancaster JetHawks Astros | Lancaster, Calif. | Clear Channel Stadium | |
| Modesto Nuts Rockies | Modesto, Calif. | John Thurman Field | |
| Rancho Cucamonga Quakes Angels | Rancho Cucamonga, Calif. | Epicenter | |
| San Jose Giants Giants | San Jose, Calif. | Municipal Stadium | |
| Stockton Ports Athletics | Stockton, Calif. | Banner Island Ballpark | |
| Visalia Rawhide Diamondbacks | Visalia, Calif. | Recreation Park | |
| Old Parks | |||
| Riverside Pilots | Riverside, Calif. | UC-Riverside Sports Center | |
| Stockton Ports | Stockton, Calif. | Billy Hebert Field | |
| CAROLINA LEAGUE (High A) | |||
| 2010 Teams | |||
| Frederick Keys Orioles | Frederick, Md. | Harry Grove Stadium | |
| Kinston Indians Indians | Kinston, N.C. | Grainger Stadium | |
| Lynchburg Hillcats Reds | Lynchburg, Va. | Calvin Falwell Field at City Stadium | |
| Myrtle Beach Pelicans Braves | Myrtle Beach, S.C. | BB&T Coastal Field | |
| Potomac Nationals Nationals | Woodbridge, Va. | G. Richard Pfitzner Stadium | |
| Salem Red Sox Red Sox | Salem, Va. | Lewis-Gale Field | |
| Wilmington Blue Rocks Royals | Wilmington, Del. | Daniel S. Frawley Stadium | |
| Winston-Salem Dash White Sox | Winston-Salem, N.C. | Wake Forest Baseball Park | |
| Old Parks | |||
| Durham Bulls | Durham, N.C. | Durham Athletic Park | |
| Durham Bulls | Durham, N.C. | Durham Bulls Athletic Park | |
| FLORIDA STATE LEAGUE (High A) | |||
| 2010 Teams | |||
| Bradenton Pirates Pirates | Sarasota, Fla. | Ed Smith Stadium | |
| Brevard County Manatees Brewers | Viera, Fla. | Space Coast Stadium | |
| Charlotte Stone Crabs Rays | Port Charlotte, Fla. | Charlotte Co. Stadium | |
| Clearwater Threshers Phillies | Clearwater, Fla. | Bright House Field | |
| Daytona Cubs Cubs | Daytona Beach, Fla. | Jackie Robinson Ballpark | |
| Dunedin Blue Jays Blue Jays | Dunedin, Fla. | Knology Park | |
| Fort Myers Miracle Twins | Fort Myers, Fla. | William H. Hammond Stadium | |
| Jupiter Hammerheads Marlins | Jupiter, Fla. | Roger Dean Stadium | |
| Lakeland Flying Tigers Tigers | Lakeland, Fla. | Joker Marchant Stadium | |
| Palm Beach Cardinals Cardinals | Jupiter, Fla. | Roger Dean Stadium | |
| St. Lucie Mets Mets | Port St. Lucie, Fla. | Tradition Field | |
| Tampa Yankees Yankees | Tampa, Fla. | George M. Steinbrenner Field | |
| Old Parks | |||
| Clearwater Phillies | Clearwater, Fla. | Jack Russell Memorial Stadium | |
| Lakeland Tigers | Lakeland, Fla. | Henley Field | |
| Sarasota Reds | Sarasota, Fla. | Ed Smith Stadium | |
| Vero Beach Dodgers | Vero Beach, Fla. | Holman Stadium | |
| MIDWEST LEAGUE (Low A) | |||
| 2010 Teams | |||
| Beloit Snappers Twins | Beloit, Wis. | Pohlman Field at Telfer Park | |
| Burlington Bees Royals | Burlington, Iowa | Community Field | |
| Cedar Rapids Kernels Angels | Cedar Rapids, Iowa | Veterans Memorial Stadium (2002) | |
| Clinton LumberKings Mariners | Clinton, Iowa | Alliant Energy Field | |
| Dayton Dragons Reds | Dayton, Ohio | Fifth Third Field | |
| Fort Wayne TinCaps Padres | Fort Wayne, Ind. | Parkview Field | |
| Great Lakes Loons Dodgers | Midland, Mich. | Dow Diamond | |
| Kane County Cougars Athletics | Geneva, Ill. | Philip B. Elfstrom Stadium | |
| Lansing Lugnuts Blue Jays | Lansing, Mich. | Oldsmobile Park | |
| Peoria Chiefs Cubs | Peoria, Ill. | O’Brien Field | |
| South Bend Silver Hawks Diamondbacks | South Bend, Ind. | Stanley Coveleski Regional Stadium | |
| Quad Cities River Bandits Cardinals | Davenport, Iowa | Modern Woodmen Park | |
| West Michigan Whitecaps Tigers | Comstock Park, Mich. | Fifth Third Ballpark | |
| Wisconsin Timber Rattlers Brewers | Grand Chute, Wis. | Fox Cities Stadium | |
| Old Parks | |||
| Appleton Foxes | Appleton, Wis. | Goodland Field | |
| Battle Creek Battle Cats | Battle Creek, Mich. | C.O. Brown Stadium | |
| Cedar Rapids Kernels | Cedar Rapids, Iowa | Veterans Memorial Stadium (1949) | |
| Fort Wayne Wizards | Fort Wayne, Ind. | Memorial Stadium | |
| Peoria Chiefs | Peoria, Ill. | Pete Vonachen Stadium | |
| Rockford Cubbies / Reds | Rockford, Ill. | Marinelli Field | |
| Sultans of Springfield | Springfield, Ill. | Robin Roberts Stadium at Lanphier Park | |
| Waterloo Diamonds | Waterloo, Iowa | Municipal Stadium | |
| SOUTH ATLANTIC LEAGUE (Low A) | |||
| 2010 Teams | |||
| Asheville Tourists Rockies | Asheville, N.C. | McCormick Field | |
| Augusta Greenjackets Giants | Augusta, Ga. | Lake Olmstead Stadium | |
| Bowling Green Hot Rods Rays | Bowling Green, Ky. | Bowling Green Ballpark | |
| Charleston RiverDogs Yankees | Charleston, S.C. | Joseph P. Riley Jr. Ballpark | |
| Delmarva Shorebirds Orioles | Salisbury, Md. | Arthur W. Perdue Stadium | |
| Greensboro Grasshoppers Marlins | Greensboro, N.C. | NewBridge Bank Park | |
| Greenville Drive Red Sox | Greenville, S.C. | Fluor Field at West End | |
| Hagerstown Suns Nationals | Hagerstown, Md. | Municipal Stadium | |
| Hickory Crawdads Rangers | Hickory, N.C. | L.P. Frans Stadium | |
| Kannapolis Intimidators White Sox | Kannapolis, N.C. | Fieldcrest Cannon Stadium | |
| Lake County Captains Indians | Eastlake, Ohio | Classic Park | |
| Lakewood BlueClaws Phillies | Lakewood, N.J. | FirstEnergy Park | |
| Lexington Legends Astros | Lexington, Ky. | Applebee’s Park | |
| Rome Braves Braves | Rome, Ga. | State Mutual Stadium | |
| Savannah Sand Gnats Mets | Savannah, Ga. | Grayson Stadium | |
| West Virginia Power Pirates | Charleston, W.Va. | Appalachian Power Park | |
| Old Parks | |||
| Cape Fear Crocs | Fayetteville, N.C. | J.P. Riddle Stadium | |
| Capital City Bombers | Columbia, S.C. | Capital City Stadium | |
| Charleston Alley Cats | Charleston, W.Va. | Watt Powell Park | |
| Columbus RedStixx | Columbus, Ga. | Golden Park | |
| Greensboro Bats | Greensboro, N.C. | World War Memorial Stadium | |
| Macon Braves | Macon, Ga. | Luther Williams Field | |
| South Georgia Waves | Albany, Ga. | Paul Eames Sports Complex | |
| Wilmington Waves | Wilmington, N.C. | UNC-Wilmington Brooks Field | |
| NEW YORK-PENN LEAGUE (Short Season A) | |||
| 2010 Teams | |||
| Aberdeen IronBirds Orioles | Aberdeen, Md. | Ripken Stadium | |
| Auburn Doubledays Blue Jays | Auburn, N.Y. | Falcon Park | |
| Batavia Muckdogs Cardinals | Batavia, N.Y. | Dwyer Stadium | |
| Brooklyn Cyclones Mets | Brooklyn, N.Y. | KeySpan Park | |
| Hudson Valley Renegades Rays | Fishkill, N.Y. | Dutchess Stadium | |
| Jamestown Jammers Marlins | Jamestown, N.Y. | Russell E. Diethrick Jr. Park | |
| Lowell Spinners Red Sox | Lowell, Mass. | Edward J. LeLacheur Park | |
| Mahoning Valley Scrappers Indians | Niles, Ohio | Eastwood Field | |
| Oneonta Tigers Tigers | Oneonta, N.Y. | Damaschke Field | |
| State College Spikes Pirates | State College, Pa. | Medlar Field at Lubrano Park | |
| Staten Island Yankees Yankees | Staten Island, N.Y. | Richmond Co. Bank Ballpark at St. George | |
| Tri-City Valley Cats Astros | Troy, N.Y. | Joseph L. Bruno Stadium | |
| Vermont Lake Monsters Nationals | Burlington, Vt. | Centennial Field | |
| Williamsport Crosscutters Phillies | Williamsport, Pa. | Bowman Field | |
| Old Parks | |||
| Elmira Pioneers | Elmira, N.Y. | Dunn Field | |
| Erie SeaWolves | Erie, Pa. | Jerry Uht Park | |
| Hamilton Redbirds | Hamilton, Ont. | Bernie Arbour Stadium | |
| Little Falls Mets | Little Falls, N.Y. | Veterans Memorial Park | |
| Lowell Spinners | Lowell, Mass. | Alumni Field | |
| Niagara Falls Rapids | Niagara Falls, N.Y. | Sal Maglie Stadium | |
| New Jersey Cardinals | Augusta, N.J. | Skylands Park | |
| Pittsfield Mets / Astros | Pittsfield, Mass. | Wahconah Park | |
| Queens Kings | Jamaica, N.Y. | St. John’s University | |
| St. Catharines Blue Jays | St. Catharines, Ont. | Community Park | |
| Staten Island Yankees | Staten Island, N.Y. | College of Staten Island | |
| Utica Blue Sox | Utica, N.Y. | Donovan Stadium | |
| Watertown Indians | Watertown, N.Y. | Duffy Fairgrounds | |
| Welland Pirates | Welland, Ont. | Welland Stadium | |
| NORTHWEST LEAGUE (Short-Season A) | |||
| 2010 Teams | |||
| Boise Hawks Cubs | Boise, Idaho | Memorial Stadium | |
| Eugene Emeralds Padres | Eugene, Ore. | Civic Stadium | |
| Everett Aquasox Mariners | Everett, Wash. | Memorial Stadium | |
| Salem-Keizer Volcanoes Giants | Keizer, Ore. | Volcanoes Stadium | |
| Spokane Indians Rangers | Spokane, Wash. | Avista Stadium | |
| Tri-City Dust Devils Rockies | Pasco, Wash. | Gesa Stadium | |
| Vancouver Canadians Athletics | Vancouver, B.C. | Nat Bailey Stadium | |
| Yakima Bears Diamondbacks | Yakima, Wash. | Yakima Co. Stadium | |
| APPALACHIAN LEAGUE (Rookie) | |||
| 2010 Teams | |||
| Bluefield Orioles Orioles | Bluefield, Va. | Bowen Field | |
| Bristol Sox White Sox | Bristol, Va. | DeVault Memorial Stadium | |
| Burlington Royals Royals | Burlington, N.C. | Burlington Athletic Stadium | |
| Danville Braves Braves | Danville, Va. | Dan Daniel Memorial Park | |
| Elizabethton Twins Twins | Elizabethton, Tenn. | Joe O’Brien Field | |
| Greeneville Astros Astros | Tusculum, Tenn. | Pioneer Park at Tusculum College | |
| Johnson City Cardinals Cardinals | Johnson City, Tenn. | Howard Johnson Field | |
| Kingsport Mets Mets | Kingsport, Tenn. | Hunter Wright Stadium | |
| Princeton Rays Rays | Princeton, W.Va. | Hunnicutt Field | |
| Pulaski Blue Jays Blue Jays | Pulaski, Va. | Calfee Park | |
| Old Parks | |||
| Huntington Cubs | Huntington, W.Va. | St. Cloud Commons | |
| Martinsville Phillies/Astros | Martinsville, Va. | Hooker Field | |
| PIONEER LEAGUE (Rookie) | |||
| 2010 Teams | |||
| Billings Mustangs Reds | Billings, Mont. | Dehler Park | |
| Casper Ghosts Rockies | Casper, Wyo. | Mike Lansing Field | |
| Great Falls Voyagers White Sox | Great Falls, Mont. | Centene Stadium | |
| Helena Brewers Brewers | Helena, Mont. | Kindrick Legion Field | |
| Idaho Falls Chukars Royals | Idaho Falls, Idaho | Melaleuca Field | |
| Missoula Osprey Diamondbacks | Missoula, Mont. | Ogren Park at Allegiance Field | |
| Ogden Raptors Dodgers | Ogden, Utah | Lindquist Field | |
| Orem Owlz Angels | Orem, Utah | Brent Brown Ballpark | |
| Old Parks | |||
| Billings Mustangs | Billings, Mont. | Cobb Field | |
| Medicine Hat Blue Jays | Medicine Hat, Alta. | Athletic Park | |
| Missoula Osprey | Missoula, Mont. | Lindborg-Cregg Field | |
| Provo Angels | Provo, Utah | Larry H. Miller Field | |
| AMERICAN ASSOCIATION (Independent) | |||
| 2009 Teams | |||
| El Paso Diablos | El Paso, Texas | Cohen Stadium | |
| Fort Worth Cats | Fort Worth, Texas | LaGrave Field | |
| Grand Prairie AirHogs | Grand Prairie, Texas | Quik Trip Park at Grand Prairie | |
| Lincoln Saltdogs | Lincoln, Neb. | Haymarket Park | |
| Pensacola Pelicans | Pensacola, Fla. | University of West Florida | |
| St. Paul Saints | St. Paul, Minn. | Midway Stadium | |
| Shreveport Sports | Shreveport, La. | Fair Grounds Field | |
| Sioux City Explorers | Sioux City, Iowa | Lewis and Clark Park | |
| Sioux Falls Canaries | Sioux Falls, S.D. | Sioux Falls Stadium | |
| Wichita Wingnuts | Wichita, Kan. | Lawrence-Dumont Stadium | |
| Old Parks | |||
| St. Joe Blacksnakes | St. Joseph, Mo. | Phil Welch Stadium | |
| ATLANTIC LEAGUE (Independent) | |||
| 2009 Teams | |||
| Bridgeport Bluefish | Bridgeport, Conn. | HarborYard Stadium | |
| Camden Riversharks | Camden, N.J. | Campbell’s Field | |
| Lancaster Barnstormers | Lancaster, Pa. | Clipper Magazine Stadium | |
| Long Island Ducks | Central Islip, N.Y. | Citibank Park | |
| Newark Bears | Newark, N.J. | Bears & Eagles Riverfront Stadium | |
| Somerset Patriots | Bridgewater, N.J. | TD Bank Ballpark | |
| Southern Maryland Blue Crabs | Waldorf, Md. | Regency Furniture Stadium | |
| York Revolution | York, Pa. | Sovereign Bank Stadium | |
| Old Parks | |||
| Aberdeen Arsenal | Bel Air, Md. | Harford Community College | |
| Atlantic City Surf | Atlantic City, N.J. | The Sandcastle | |
| Lehigh Valley Black Diamonds | Quakertown, Pa. | Memorial Park | |
| Nashua Pride | Nashua, N.H. | Holman Stadium | |
| Newburgh Black Diamonds | Newburgh, N.Y. | Delano-Hitch Stadium | |
| CAN-AM LEAGUE (Independent) (Northeast League through 2004) | |||
| 2009 Teams | |||
| American Defenders of New Hampshire | Nashua, N.H. | Holman Stadium | |
| Brockton Rox | Brockton, Mass. | Campanelli Stadium | |
| New Jersey Jackals | Little Falls, N.J. | Yogi Berra Stadium | |
| Les Capitales de Québec | Québec, P.Q. | Stade de Québec | |
| Sussex Skyhawks | Augusta, N.J. | Skylands Park | |
| Worcester Tornadoes | Worcester, Mass. | Hanover Insurance Park at Fitton Field | |
| Old Parks | |||
| Adirondack Lumberjacks | Glens Falls, N.Y. | East Field | |
| Albany-Colonie Diamond Dogs | Colonie, N.Y. | Heritage Park | |
| Allentown Ambassadors | Allentown, Pa. | Earl F. Hunsicker Bicentennial Park | |
| Atlantic City Surf | Atlantic City, N.J. | The Sandcastle | |
| Bangor Lumberjacks | Orono, Me. | Mahaney Diamond (UMaine) | |
| Bangor Lumberjacks | Bangor, Me. | John Winkin Sports Complex | |
| Catskill Cougars | Mountaindale, N.Y. | Baxter Stadium | |
| Elmira Pioneers | Elmira, N.Y. | Dunn Field | |
| Mass. Mad Dogs / North Shore Spirit | Lynn, Mass. | Fraser Field | |
| New Haven County Cutters | West Haven, Conn. | Yale Field | |
| Waterbury Spirit | Waterbury, Conn. | Municipal Stadium | |
| CENTRAL LEAGUE (Independent, disbanded 2005) | |||
| Old Parks | |||
| Coastal Bend Aviators | Robstown, Texas | Fairgrounds Field | |
| Edinburg Coyotes | Edinburg, Texas | Edinburg Baseball Stadium | |
| Fort Worth Cats | Fort Worth, Texas | LaGrave Field | |
| Pensacola Pelicans | Pensacola, Fla. | University of West Florida | |
| San Angelo Colts | San Angelo, Texas | Foster Field | |
| CONTINENTAL LEAGUE (Independent) | |||
| 2009 Teams | |||
| Alexandria Aces | Alexandria, La. | Bringhurst Field | |
| Bay Area Toros | Texas City, Texas | Robinson Stadium | |
| Big Bend Cowboys | Alpine, Texas | Kokernot Field | |
| Coastal Kingfish | Houston, Texas | Road team for 2009 | |
| South Louisiana Pipeliners | Morgan City, La. | S.L. Sports Academy | |
| Texarkana Gunslingers | Texarkana, Texas | George Dobson Field | |
| FRONTIER LEAGUE (Independent) | |||
| 2009 Teams | |||
| Evansville Otters | Evansville, Ind. | Bosse Field | |
| Florence Freedom | Florence, Ky. | Champion Window Field | |
| Gateway Grizzlies | Sauget, Ill. | GMC Stadium | |
| Kalamazoo Kings | Kalamazoo, Mich. | Homer Stryker Field | |
| Lake Erie Crushers | Avon, Ohio | All Pro Freight Stadium | |
| Midwest Sliders of Ypsilanti | Ypsilanti, Mich. | Oestrike Stadium | |
| River City Rascals | O’Fallon, Mo. | T.R. Hughes Ballpark | |
| Rockford RiverHawks | Rockford, Ill. | RiverHawks Stadium | |
| Southern Illinois Miners | Marion, Ill. | Rent One Park | |
| Traverse City Beach Bums | Traverse City, Mich. | Wuerfel Park | |
| Washington Wild Things | Washington, Pa. | CONSOL Energy Park | |
| Windy City ThunderBolts | Crestwood, Ill. | Hawkinson Ford Field | |
| Old Parks | |||
| Chillicothe Paints | Chillicothe, Ohio | V.A. Memorial Stadium | |
| Florence Freedom | Hamilton, Ohio | Foundation Field | |
| Johnstown Johnnies | Johnstown, Pa. | Point Stadium | |
| Kenosha Mammoths | Kenosha, Wis. | Simmons Field | |
| Mid-Missouri Mavericks | Columbia, Mo. | Taylor Stadium at Simmons Field | |
| Richmond Roosters | Richmond, Ind. | McBride Stadium | |
| GOLDEN LEAGUE (Independent) | |||
| 2009 Teams | |||
| Calgary Vipers | Calgary, Alta. | Foothills Stadium | |
| Chico Outlaws | Chico, Calif. | Nettleton Stadium | |
| Edmonton Capitals | Edmonton, Alta. | TELUS Field | |
| Long Beach Armada | Long Beach, Calif. | Blair Field | |
| Orange County Flyers | Fullerton, Calif. | Goodwin Field | |
| St. George Roadrunners | St. George, Utah | Bruce Hurst Stadium | |
| Tucson Toros | Tucson, Ariz. | Hi Corbett Field | |
| Victoria Seals | Victoria, B.C. | Royal Athletic Park | |
| Yuma Scorpions | Yuma, Ariz. | Desert Sun Stadium | |
| Old Parks | |||
| Reno Silver Sox | Reno, Nev. | Peccole Park (U. of Nevada) | |
| NORTHERN LEAGUE (Independent) | |||
| 2009 Teams | |||
| Fargo-Moorhead Red Hawks | Fargo, N.D. | Newman Outdoor Field | |
| Gary SouthShore Rail Cats | Gary, Ind. | U.S. Steel Yard | |
| Joliet JackHammers | Joliet, Ill. | Silver Cross Field | |
| Kansas City T-bones | Kansas City, Kan. | CommunityAmerica Ballpark | |
| Schaumburg Flyers | Schaumburg, Ill. | Alexian Field | |
| Winnipeg Goldeyes | Winnipeg, Man. | CanWest Global Park | |
| Old Parks | |||
| Lincoln Saltdogs | Lincoln, Neb. | Haymarket Park | |
| St. Paul Saints | St. Paul, Minn. | Midway Stadium | |
| Sioux City Explorers | Sioux City, Iowa | Lewis and Clark Park | |
| Sioux Falls Canaries | Sioux Falls, S.D. | Sioux Falls Stadium | |
| Winnipeg Goldeyes | Winnipeg, Man. | Winnipeg Stadium | |
| UNITED LEAGUE (Independent) | |||
| Amarillo Dillas | Amarillo, Texas | Potter Co. Memorial Stadium | |
| Coastal Bend Thunder | Robstown, Texas | Fairgrounds Field | |
| Edinburg Roadrunners | Edinburg, Texas | Edinburg Baseball Stadium | |
| Laredo Broncos | Laredo, Texas | Veterans Field | |
| Rio Grande Valley WhiteWings | Harlingen, Texas | Harlingen Field | |
| San Angelo Colts | San Angelo, Texas | Foster Field | |
| Old Parks | |||
| Alexandria Aces | Alexandria, La. | Bringhurst Field | |