Expansion & Growth

MLS Expansion: Every Team, Timeline & What's Next

Complete history of MLS expansion from 10 teams to 30+, including new expansion teams, cities in contention, and the league's growth trajectory.

Major League Soccer has undergone one of the most remarkable expansions in professional sports history. From nearly folding in the early 2000s with just 10 teams, MLS has grown into a 30-club league spanning the United States and Canada, with plans to expand further. The story of MLS expansion is a story about ambition, market strategy, and the rising demand for soccer in North America.

This guide covers every expansion era, every team that joined, the cities still in contention, and what the future holds for a league that shows no signs of slowing down.

How Many Teams Are in MLS?

As of the 2026 season, Major League Soccer has 30 active clubs competing across two conferences (Eastern and Western). San Diego FC joined as the 30th club in 2025, making it the largest MLS roster of teams ever.

Here is the full list of current MLS clubs organized by conference:

Eastern Conference (15 teams)

  • Atlanta United FC
  • CF Montreal
  • Charlotte FC
  • Chicago Fire FC
  • Cincinnati FC
  • Columbus Crew
  • D.C. United
  • Inter Miami CF
  • Nashville SC
  • New England Revolution
  • New York City FC
  • New York Red Bulls
  • Orlando City SC
  • Philadelphia Union
  • Toronto FC

Western Conference (15 teams)

  • Austin FC
  • Colorado Rapids
  • FC Dallas
  • Houston Dynamo FC
  • LA Galaxy
  • LAFC
  • Minnesota United FC
  • Portland Timbers
  • Real Salt Lake
  • San Jose Earthquakes
  • Seattle Sounders FC
  • Sporting Kansas City
  • St. Louis CITY SC
  • Vancouver Whitecaps FC
  • San Diego FC

The Complete MLS Expansion Timeline

The Founding Era (1996): 10 Charter Clubs

MLS launched in 1996 with 10 charter clubs. The league was born out of a promise made when the United States won the bid to host the 1994 FIFA World Cup --- FIFA required the U.S. to establish a Division 1 professional soccer league.

The 10 original clubs:

  1. Columbus Crew (now Columbus Crew)
  2. D.C. United
  3. Colorado Rapids
  4. FC Dallas (originally Dallas Burn)
  5. Kansas City Wizards (now Sporting Kansas City)
  6. LA Galaxy
  7. New England Revolution
  8. NY/NJ MetroStars (now New York Red Bulls)
  9. San Jose Clash (now San Jose Earthquakes)
  10. Tampa Bay Mutiny (folded in 2001)

Two additional teams joined in 1998:

  • Chicago Fire (1998)
  • Miami Fusion (1998, folded in 2001)

The early years were turbulent. Attendance was inconsistent, media coverage was minimal, and the league lost money heavily. Both the Tampa Bay Mutiny and Miami Fusion were contracted after the 2001 season, dropping the league to 10 teams.

The Survival and Rebuilding Era (2005-2009): Slow, Strategic Growth

After surviving the contraction period, MLS took a cautious approach to expansion. Each new market was selected based on stadium plans, ownership strength, and demonstrated fan demand.

  • Chivas USA (2005, folded 2014): A controversial experiment placing a second LA team branded as an extension of Guadalajara's Chivas. It never found a sustainable identity.
  • Real Salt Lake (2005): Brought MLS to Utah with a soccer-specific stadium plan that became a model for the league.
  • Houston Dynamo (2006): Relocated from San Jose (the Earthquakes temporarily ceased operations), the Dynamo won back-to-back MLS Cups in their first two seasons.
  • Toronto FC (2007): The first Canadian MLS club. Toronto FC's passionate supporter culture at BMO Field helped prove that soccer could thrive in non-traditional markets.
  • San Jose Earthquakes (2008): Returned to MLS after a two-year hiatus, eventually building PayPal Park as their home.
  • Seattle Sounders FC (2009): A watershed moment. The Sounders drew over 30,000 fans per game from day one, shattering attendance records and proving that MLS could be a major-league experience.

Seattle's success changed the expansion calculus entirely. Suddenly, cities were competing for MLS franchises rather than the league begging for ownership groups.

The Boom Era (2010-2017): Soccer-Specific Stadiums and New Markets

This period saw MLS hit its stride with expansion, adding clubs in markets that demonstrated both fan passion and infrastructure commitment.

  • Philadelphia Union (2010): Joined with a dedicated stadium in Chester, Pennsylvania.
  • Vancouver Whitecaps FC (2011): The second Canadian club, playing at BC Place.
  • Portland Timbers (2011): Like Seattle, Portland brought an existing soccer culture into MLS. The Timbers Army supporters group became iconic.
  • CF Montreal (2012): Originally the Montreal Impact, the third Canadian MLS club brought francophone culture to the league.
  • New York City FC (2015): Backed by City Football Group (Manchester City's parent company) and the New York Yankees. NYCFC played at Yankee Stadium while pursuing a dedicated venue.
  • Orlando City SC (2015): Orlando's passionate fanbase and purpose-built stadium made it an instant success story.
  • Atlanta United FC (2017): Perhaps the most successful expansion launch in MLS history. Atlanta drew over 70,000 fans at Mercedes-Benz Stadium and won MLS Cup in just their second season (2018).
  • Minnesota United FC (2017): Brought MLS to the Twin Cities with strong local ownership and Allianz Field, one of the league's best soccer-specific stadiums.

The Modern Expansion Wave (2018-2025): Reaching 30 Clubs

The most recent expansion wave has been the most ambitious, adding clubs across diverse markets and dramatically increasing expansion fees.

  • LAFC (2018): A second Los Angeles club done right. LAFC's Banc of California Stadium (now BMO Stadium) in the Exposition Park neighborhood and their supporter group (the 3252) created a new standard for MLS match-day atmosphere.
  • FC Cincinnati (2019): After drawing massive crowds in the USL, Cincinnati earned an MLS expansion bid. TQL Stadium opened in 2021 as one of the league's premier venues.
  • Nashville SC (2020): Joined during the COVID-disrupted season. GEODIS Park, their 30,000-seat stadium that opened in 2022, is the largest soccer-specific stadium in the U.S. and Canada.
  • Inter Miami CF (2020): Co-owned by David Beckham (fulfilling an option from his original MLS contract), Inter Miami gained global relevance when Lionel Messi signed in 2023.
  • Austin FC (2021): Texas's capital city embraced MLS immediately. Q2 Stadium has been one of the toughest places to play in MLS.
  • Charlotte FC (2022): Playing at Bank of America Stadium (shared with the NFL's Carolina Panthers), Charlotte set MLS attendance records with crowds exceeding 74,000 in their debut season.
  • St. Louis CITY SC (2023): The newest club to complete a full season, St. Louis joined with CITYPARK stadium downtown and had an impressive debut campaign, earning a playoff berth.
  • San Diego FC (2025): The 30th club, set to begin play at Snapdragon Stadium (shared with San Diego State). San Diego has long been considered an ideal MLS market given its proximity to the Mexican border and existing soccer culture.

The Rising Cost of Expansion

One of the clearest indicators of MLS's growth is the escalating expansion fee --- the price an ownership group pays to join the league.

| Year | Club | Expansion Fee | |------|------|---------------| | 2005 | Real Salt Lake | $10 million | | 2007 | Toronto FC | $10 million | | 2009 | Seattle Sounders | $30 million | | 2015 | NYCFC / Orlando City | $100 million | | 2017 | Atlanta United / Minnesota United | $70-$100 million | | 2018 | LAFC | $110 million | | 2019 | FC Cincinnati | $150 million | | 2020 | Nashville / Inter Miami | $150 million | | 2021 | Austin FC | $200 million | | 2022 | Charlotte FC | $325 million | | 2023 | St. Louis CITY SC | $200 million | | 2025 | San Diego FC | $500 million |

The leap from $10 million in 2005 to $500 million in 2025 reflects both the league's rising franchise valuations and the competitive demand from cities wanting MLS clubs. Forbes estimated the average MLS franchise value at over $600 million in 2024, with clubs like LAFC, Atlanta United, and Inter Miami valued above $1 billion.

Expansion Beyond 30: Which Cities Could Be Next?

MLS Commissioner Don Garber has indicated the league could expand to 32 or even 36 teams in the coming years. Several cities are actively pursuing bids:

Leading Contenders

Las Vegas Las Vegas has emerged as a top contender for expansion. The city has proven it can support major professional sports with the NFL's Raiders, NHL's Golden Knights, and WNBA's Aces. A soccer-specific stadium plan and the city's growing population make it a strong candidate. The Las Vegas market also benefits from tourism, which could boost attendance and sponsorship revenue.

Phoenix / Scottsdale The Phoenix metropolitan area is the fifth-largest metro in the U.S. and currently the largest without an MLS club. Phoenix Rising FC has operated successfully in the USL Championship, and multiple ownership groups have expressed interest in an MLS bid. A stadium site and financing plan are the key hurdles.

Detroit Detroit has a passionate sports culture and a metro population of over 4 million. The success of Detroit City FC in the USL has demonstrated demand for professional soccer. Downtown stadium plans have been discussed, though no formal bid has been submitted to MLS.

Indianapolis Indy Eleven has built a solid fanbase in the USL, and Indianapolis regularly hosts major soccer events (including U.S. national team matches at Lucas Oil Stadium). The market size and corporate sponsorship base make it a viable expansion candidate.

Sacramento Sacramento Republic FC was actually awarded an MLS expansion bid in 2019, but ownership and stadium financing complications stalled the process. The bid has been in limbo, though the market's soccer enthusiasm remains strong.

Other Cities in the Conversation

  • Tampa Bay / St. Petersburg: Has a previous MLS history (Tampa Bay Mutiny) and renewed interest
  • San Antonio: Large metro area with Alamo City-based USL team
  • Raleigh-Durham: Fast-growing market in North Carolina's Research Triangle
  • Oklahoma City: Emerging market with new downtown development

What Drives MLS Expansion Decisions?

MLS evaluates expansion bids based on several criteria:

1. Stadium Plan

A soccer-specific stadium (SSS) or a viable shared-stadium arrangement is essentially required. MLS learned from its early years that playing in oversized NFL stadiums (with 50,000+ empty seats) hurts the atmosphere and brand perception. The ideal is a 20,000-25,000 seat SSS with the possibility of expansion.

Charlotte FC is the notable exception, thriving in a 75,000-seat NFL stadium by consistently filling it for marquee matches.

2. Ownership Group

MLS requires ownership groups with deep financial resources. The league looks for net worth, sports business experience, and commitment to the community. The expansion fee alone can exceed $500 million, and owners must also fund stadium construction, player payroll, and operating costs during the early years when clubs typically operate at a loss.

3. Market Size and Demographics

Population size, median age, Hispanic/Latino population percentage (historically a key soccer demographic), and overall sports market competition all factor into expansion decisions. MLS has increasingly prioritized markets where soccer can be the "first sport" rather than competing with entrenched NFL, NBA, or college football loyalties.

4. Corporate Sponsorship Base

Naming rights, jersey sponsors, and local corporate partnerships are critical revenue streams. Markets with strong Fortune 500 presence and a track record of corporate sports investment are more attractive.

5. Existing Soccer Culture

Markets with successful USL clubs, strong youth soccer participation, and existing fan communities have an advantage. Seattle, Portland, Atlanta, Cincinnati, and St. Louis all had established soccer cultures before joining MLS.

The Growth of MLS: Key Metrics

MLS expansion is just one dimension of the league's growth. Several other metrics tell the story:

Attendance

MLS average attendance has grown significantly:

  • 2000: ~14,000 per game
  • 2010: ~16,700 per game
  • 2015: ~21,500 per game
  • 2019: ~21,300 per game (pre-COVID peak)
  • 2023: ~22,600 per game
  • 2024: ~23,000+ per game

These numbers put MLS ahead of the NBA and NHL in per-game attendance, though behind the NFL and MLB.

Television and Streaming

The 10-year Apple TV deal (2023-2032) was a transformative moment. For reportedly $2.5 billion, Apple secured exclusive streaming rights to every MLS match through MLS Season Pass. This deal:

  • Eliminated regional blackouts (every game available everywhere)
  • Provided a guaranteed revenue floor for the league
  • Made MLS the first major U.S. league to put all matches on a single streaming platform

Franchise Valuations

Average MLS franchise values have skyrocketed:

  • 2008: ~$37 million
  • 2015: ~$157 million
  • 2019: ~$313 million
  • 2024: ~$600+ million

The most valuable clubs (LAFC, Atlanta United, Inter Miami) exceed $1 billion in estimated value.

Global Player Market

MLS has become a legitimate destination for top international talent, not just aging European stars on farewell tours. Recent signings like Thiago Almada (Atlanta to Botafogo, with Atlanta receiving a record transfer fee), Cucho Hernandez (Columbus Crew), and the wave of young South Americans on U22 Initiative contracts show MLS attracting prime-age talent.

The league also generates increasing transfer revenue by selling academy products and development signings to European clubs --- a crucial indicator of league quality.

MLS Expansion and the Single-Entity Structure

Understanding MLS expansion requires understanding the league's unique corporate structure. Unlike European leagues (where clubs are independently owned entities that compete within a league framework), MLS operates as a single entity. This means:

  • MLS LLC owns all clubs and player contracts
  • "Owners" are technically "investor-operators" who hold a stake in the overall league
  • The league controls player allocation, salary structures, and competitive balance mechanisms

This structure enables coordinated expansion. When a new club joins, it is not just adding a competitor --- it is adding a shareholder. Expansion fees are distributed among existing owners, making expansion directly profitable for the current ownership group.

The single-entity model also explains why expansion fees keep rising: each new owner is buying into an increasingly valuable collective enterprise.

Challenges Facing MLS Expansion

Market Saturation

At 30 clubs (and potentially 32-36), there are legitimate questions about whether enough quality markets remain. The U.S. and Canada are large, but competing for attention with the NFL, NBA, MLB, NHL, and college sports limits the number of viable soccer-specific markets.

Competitive Dilution

More teams mean more roster spots to fill. The MLS player pool is deeper than it was a decade ago, but rapid expansion can dilute on-field quality if the talent pipeline does not keep pace.

Stadium Financing

Building a soccer-specific stadium is expensive ($200-500 million), and public funding for sports venues is increasingly controversial. Several expansion bids have stalled over stadium financing disagreements.

Balancing Conferences

With expansion, maintaining balanced conferences and a fair schedule becomes more complex. MLS has already adjusted its playoff format multiple times to accommodate growing team counts.

What MLS Expansion Means for the Future of Soccer in North America

MLS expansion is more than just adding teams. It represents the mainstreaming of soccer in the United States and Canada. Each new market creates:

  • Youth development pipelines: Every MLS club operates an academy, feeding young players into the professional pathway
  • Local economic impact: Stadiums, match-day spending, and tourism dollars flow into expansion markets
  • Cultural integration: In markets with large immigrant communities, MLS clubs become cultural institutions that connect diverse populations
  • International competitiveness: A larger, deeper league produces better players for the U.S. and Canadian national teams

The 2026 FIFA World Cup, co-hosted by the U.S., Canada, and Mexico, will be the biggest accelerant for this growth. MLS is strategically positioning itself to capitalize on the World Cup buzz by having clubs in as many major markets as possible.

Key Takeaways

  • MLS has grown from 10 clubs in 1996 to 30 as of 2026, with plans for 32-36 teams
  • Expansion fees have risen from $10 million to $500 million, reflecting explosive growth in franchise values
  • Las Vegas, Phoenix, Detroit, and Indianapolis are among the leading contenders for future expansion
  • The Apple TV deal ($2.5 billion over 10 years) provides the financial foundation for continued growth
  • Average attendance exceeds 23,000 per game, ahead of the NBA and NHL
  • The 2026 FIFA World Cup will likely accelerate expansion and mainstream soccer interest
  • MLS's single-entity structure makes expansion a coordinated, financially beneficial process for existing owners

The trajectory is clear: MLS is building toward becoming one of the top soccer leagues in the world within the next decade. Whether it achieves that goal depends on continued smart expansion, rising on-field quality, and capturing the massive opportunity that the 2026 World Cup represents.

This article was created with AI assistance. We strive for accuracy --- if you spot an error, please let us know.