Major League Soccer 
 Eastern Conference
Atlanta United FC
Charlotte FC
Chicago Fire FC
Columbus Crew 
Cincinnati FC
D.C. United
Inter Miami CF
CF Montréal
New England Revolution
New York City FC
New York Red Bulls
Orlando City SC
Philadelphia Union
Toronto FC
 Western Conference
Austin FC
Colorado Rapids
FC Dallas
Houston Dynamo FC
LA Galaxy
Los Angeles FC
Minnesota United FC
Nashville SC
Portland Timbers
Real Salt Lake
San Jose Earthquakes
Seattle Sounders FC
Sporting Kansas City
Vancouver Whitecaps FC
 Future teams
 St. Louis City SC – starts play in 2023

USL Championship
Eastern Conference
Atlanta United 2
Birmingham Legion
Charleston Battery
Detroit City FC
Hartford Athletic
Indy Eleven
Loudoun United
Louisville City FC
Memphis 901
Miami FC
New York Red Bulls II
Pittsburgh Riverhounds SC
Tampa Bay Rowdies
FC Tulsa

Western Conference 
Colorado Springs Switchbacks  
El Paso Locomotive FC
LA Galaxy II
Las Vegas Lights FC
Monterey Bay FC
New Mexico United
Oakland Roots SC
Orange County SC
Phoenix Rising FC
Portland Timbers 2
Rio Grande Valley FC Toros
Sacramento Republic FC
San Antonio FC
San Diego Loyal SC

On hiatus
OKC Energy FC – plans to resume play in 2023

Future teams
Queensboro FC – plans to start play in 202
 Buffalo – plans to start play in 2023
 Rhode Island – plans to start play in 2023
 Des Moines – plans to start play in 2024

USL League One 
One of three leagues that forms the current third level.
 Central Valley Fuego FC
 Charlotte Independence
 Chattanooga Red Wolves SC
 Forward Madison FC
 Greenville Triumph FC
 North Carolina FC
 Northern Colorado Hailstorm FC
 Union Omaha
 Richmond Kickers
 South Georgia Tormenta FC
 FC Tucson

Future teams
 Fort Wayne FC – plans to start play in 202
 Lexington – plans to start play in 2023
 Spokane – plans to start play in 2023

National Independent Soccer Association 
Another third-level league.

MLS Next Pro 
Formed in 2021, starting play in 2022, as a dedicated MLS developmental league also at the third level. Of the 21 teams in the first season, only Rochester New York FC is not owned and operated by an MLS team.

Eastern Conference
 Chicago
 Cincinnati
 Columbus Crew 2
 Fort Lauderdale CF (Inter Miami)
 New England Revolution II
 New York City FC II
 Orlando City B
 Philadelphia Union II
 Rochester New York FC
 Toronto FC II
Western Conference
 Colorado Rapids 2
 Houston Dynamo 2
 Minnesota United 2
 North Texas SC (FC Dallas)
 Portland Timbers 2
 Real Monarchs
 San Jose
 Sporting Kansas City II
 St. Louis
 Tacoma Defiance (Seattle Sounders FC)
 Vancouver

USL League Two
Central Conference
Great Lakes Division
Chicago Fire Premier – reserve side of the MLS team
Chicago Inferno
Cincinnati Kings
Hamilton Rage (from Hamilton, Ontario)
Forest City London (from London, Ontario)
Flint City Bucks
River City Rovers (from Louisville, Kentucky)
Toronto Lynx
Heartland Division
Des Moines Menace
Kansas City Brass
Real Colorado Foxes (from Highlands Ranch, a suburb of Denver)
Springfield Demize
St. Louis Lions
Thunder Bay Chill
WSA Winnipeg
Eastern Conference
Mid-Atlantic Division
Baltimore Bohemians
Bermuda Hogges
Brooklyn Knights
Central Jersey Spartans
Jersey Express
Long Island Rough Riders
New Jersey Rangers
Ocean City Nor'easters
Reading United
Westchester Flames
Northeast Division
Boston Victory
Connecticut FC Azul
GPS Portland Phoenix
Ottawa Fury
Seacoast United Phantoms (from Portsmouth, New Hampshire)
Vermont Voltage
Western Mass Pioneers
Worcester Hydra
South Atlantic Division
Carolina Dynamo
Fredericksburg Hotspur
Nashville Metros
Northern Virginia Royals
Palmetto FC Bantams (from Greenwood, South Carolina)
Real Maryland Monarchs
Southern West Virginia King's Warriors (from Beckley)
Virginia Beach Piranhas
West Virginia Chaos (from Charleston)
Southern Conference
Mid-South Division
Austin Aztex
El Paso Patriots
Laredo Heat
New Orleans Jesters
Texas Dutch Lions
West Texas Sockers (from Midland)
Southeast Division
Bradenton Academics
FC JAX Destroyers
Fort Lauderdale Schulz Academy
Mississippi Brilla (from Jackson)
Ocala Stampede
Orlando City U-23 – reserve side of the USL Pro team Orlando City
Panama City Beach Pirates
VSI Tampa Flames
Western Conference
Northwest Division
Fraser Valley Mariners (from Abbotsford, British Columbia)
Kitsap Pumas (from Bremerton, Washington)
North Sound SeaWolves (from Everett, Washington)
Portland Timbers U23's – reserve side of the MLS team
Seattle Sounders U23's – reserve side of the MLS team
Vancouver Whitecaps Residency – reserve side of the MLS team
Victoria Highlanders
Washington Crossfire (from Seattle, plays home games in nearby Redmond)
Southwest Division
BYU Cougars – owned and operated by Brigham Young University, but not part of the school's NCAA athletic department
Fresno Fuego
Pali Blues – reserve side of the USL Pro team Los Angeles Blues
Los Angeles Misioneros
Ogden Outlaws
Orange County Blue Star
Southern California Seahorses
FC Tucson
Ventura County Fusion

Structure of women's soccer
The professional division of U.S. Soccer has had three different first-division women's leagues. The first, the Women's United Soccer Association (WUSA), was founded in 2001, but folded due to large debts after the 2003 season. The second, Women's Professional Soccer (WPS), was effectively a successor to WUSA, although it did not begin until 2009. Like WUSA before it, WPS played three seasons, but also lost large amounts of money; it first decided not to play its planned 2012 season, and then completely folded in May of that year.

After WPS folded, the effective top level of women's soccer in the U.S. was WPSL Elite, a "semi-pro" league that had both professional and amateur teams. WPSL Elite was created by the Women's Premier Soccer League, one of two second-division women's leagues, as an outlet for former WPS teams, as well as WPSL teams that wanted to play professionally. WPSL Elite played in 2012 with eight teams; six were professional, and three once played in WPS. The other second-division league was the W-League, part of the United Soccer Leagues. WPSL Elite was planned as a temporary league before a possible return of WPS.

In late 2012, a totally new top-level league was created, known as the National Women's Soccer League (NWSL). It was run by U.S. Soccer until 2020, and started play in 2013 with eight teams, four of which had been members of WPS. The league added teams in 2014 and 2016 to become a 10-team league, making it the first professional women's league in the U.S. to have more than eight teams and last more than three seasons. The league dropped to 9 teams in 2017, but returned to 10 in 2021 and further expanded to 12 for 2022.

Women's United Soccer Association
Operated from 2001–2003.
Atlanta Beat
Boston Breakers
Carolina Courage
New York Power
Philadelphia Charge
San Diego Spirit
San Jose CyberRays
Washington Freedom

Women's Professional Soccer
Operated from 2009–2011.
Atlanta Beat (joined WPS in 2010)
Boston Breakers (now in the NWSL)
Chicago Red Stars (dropped to the WPSL after the 2010 season; later in WPSL Elite, and now in the NWSL)
FC Gold Pride (from the San Francisco Bay Area; folded after the 2010 season)
Los Angeles Sol (folded after the 2009 season)
magicJack (formerly the Washington Freedom; played in South Florida)
Philadelphia Independence (joined WPS in 2010)
Saint Louis Athletica (folded during the 2010 season)
Sky Blue FC (from the New York City area; now in the NWSL as NJ/NY Gotham FC)
Washington Freedom (moved to South Florida after the 2010 season and renamed magicJack)
Western New York Flash (an offshoot of the WPSL's Buffalo Flash, and playing home games in Rochester; joined WPS in 2011, later moved to WPSL Elite, still later to the NWSL; now a youth-only operation)

WPSL Elite
 ASA Chesapeake Charge (based in the Baltimore area)
 Boston Breakers
 Chicago Red Stars
 FC Indiana (based in the Indianapolis area; plays throughout the state)
 New England Mutiny (based in the Springfield, Massachusetts area)
 New York Fury (based on Long Island)
 Philadelphia Fever
 Western New York Flash

National Women's Soccer League
Currently Operating
 Angel City FC
 Chicago Red Stars
 Houston Dash
 Kansas City Current
 NJ/NY Gotham FC
 North Carolina Courage
 OL Reign
 Orlando Pride
 Portland Thorns FC
 Racing Louisville FC
 San Diego Wave FC
 Washington Spirit

W-League
Central Conference
Atlantic Division
Atlanta Silverbacks
Bradenton Athletics
Carolina Dynamo
Central Florida Krush
Charlotte Lady Eagles
Cocoa Expos
Hampton Roads Piranhas
Richmond Kickers Destiny
Midwest Division
Chicago Gaels
Cincinnati Ladyhawks
Cleveland Internationals
Fort Wayne Fever
London Gryphons
Michigan Hawks
Minnesota Lightning
West Michigan Firewomen
Eastern Conference
Northeast Division
Boston Renegades
Long Island Lady Riders
New Hampshire Lady Phantoms
New Jersey Wildcats
New York Magic
Northern Virginia Majestics
South Jersey Banshees
Western Mass Lady Pioneers
Northern Division
Hamilton Avalanche
Laval Comets
Ottawa Fury
Rochester Rhinos
Sudbury Canadians
Toronto Lady Lynx
Vermont Lady Voltage
Western Conference
Fort Collins Force
Mile High Edge
Real Colorado Cougars
San Diego Gauchos
Seattle Sounders
Vancouver Whitecaps

Professional indoor soccer
Indoor soccer is a form of soccer played inside a building, sometimes called an arena, instead of in a stadium on a grass field.   There is one league playing indoor soccer in North America, and that is the Major Arena Soccer League.  The MASL is part of the USSF. It is also the only league in the United States to have a Mexican team.

Major Arena Soccer League (MASL)
 Eastern Division
 Baltimore Blast
 Harrisburg Heat
 Syracuse Silver Knights
 Waza Flo 
 Central Division
 Cedar Rapids Rampage
 Chicago Mustangs
 Milwaukee Wave
 Kansas City Comets
 St. Louis Ambush
 Southwest Division
 Atletico Baja (Mexico)
 Brownsville Barracudas
 Las Vegas Legends
 Saltillo Rancho Seco (Mexico)
 Sacramento Surge
 Turlock Express
 Pacific Division
 Dallas Sidekicks
 Ontario Fury
 San Diego Sockers
 Sonora Suns (Mexico)
 Tacoma Stars

Related pages
United States soccer league system

Other websites 
Official sites
U.S. Soccer Federation
Lamar Hunt U.S. Open Cup 
Major League Soccer
National Women's Soccer League
United Soccer League, operator of:
USL Championship
USL League One
USL League Two
USL W League
National Independent Soccer Association
Major Indoor Soccer League 
Women's Premier Soccer League

Lists of football teams
Soccer teams