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REALTOR® Associations, MLSs Grow Amid Wave of Consolidation

February 9, 2021

Consolidation continues to grow among local REALTOR® associations and MLSs across the country. Also, membership is on the rise among local associations by about 5% this past year, according to a new report from T3 Sixty, a real estate consulting firm.

T3 Sixty’s 2021 Organized Real Estate 200 report lists all the U.S.’s state and local REALTOR® associations and the nation’s 556 MLSs by membership size. The counts are current as of Dec. 31, 2020.

The wave of consolidation continues among MLSs. Six years ago there were over 800 MLSs compared to 556 MLSs by the end of 2020, according to the report.

The three largest state associations tend to match states’ population sizes, led by California, Florida, and Texas. These are the only REALTOR® associations with membership counts above 100,000. They also account for more than one-third of the nation’s total REALTOR® membership.

Meanwhile, the three largest local REALTOR® associations, according to the 2021 rankings, are the Miami Association of REALTORS®, Houston Association of REALTORS®, and Broward, Palm Beaches & St. Lucie REALTORS®.

“Every year in the ORE 200, we track how organized real estate is growing and changing, and 2021 highlights the local REALTOR® association and MLS growth and consolidation we’ve been hearing about,” says Clint Skutchan, T3 Sixty vice president of organized real estate. “Many organizations are looking at how they can increase their service and achieve economies of scale by growing larger and partnering with others; the 2021 ORE 200 shows us to what extent this is happening.”

The following are the 2021 rankings of the 10 largest MLSs in the nation:

1. California Regional MLS

  • Based in San Dimas, Calif.
  • Members: 104,414

2. Bright MLS

  • Based in Rockville, Md.
  • Members: 94,429

3. Stellar MLS

  • Based in Maitland, Fla.
  • Members: 64,552

4. First Multiple Listing Service

  • Based in Atlanta, Ga.
  • Members: 48,991

5. Miami Association of REALTORS®

  • Based in Miami, Fla.
  • Members: 47,694

6. Midwest Real Estate Data

  • Based in Lisle, Ill.
  • Members: 47,251

7. Georgia MLS

  • Based in Tucker, Ga.
  • Members: 44,995

8. MLS Property Information Network

  • Based in Shrewsbury, Mass.
  • Members: 43,813

9. North Texas Real Estate Information Systems

  • Based in Dallas, Texas
  • Members: 43,000

10. One Key MLS

  • Based in Babylon, N.Y.
  • Members: 42,450
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