Diamond: Metropolitan Washington Mensa and Chicago Area Mensa
Emerald: San Francisco Regional Mensa
Class II (400-1099 members)
Diamond: Northern New Jersey Mensa
Sapphire: Charlotte - Blue Ridge Mensa, Mid-America Mensa
Emerald: Central New Jersey Mensa, Mensa 76, Cincinnati Area Mensa, Southeast Michigan Mensa, Denver Mensa
Class III (200-399 members)
Diamond: Dayton Area Mensa
Ruby: East Central Ohio Mensa, North Alabama Mensa
Sapphire: Southern Nevada Mensa
Emerald: Western New York Mensa, Mensa of Northeastern New York, New Hampshire Mensa, Tidewater Mensa, Piedmont Area Mensa, Kentuckiana Mensa, Southern Connecticut Mensa
Class IV (125-199 members)
Diamond: French Broad Mensa
Sapphire: Blue Grass Mensa, Plains and Peaks Mensa
Emerald: New Orleans Mensa, Central Alabama Mensa, Maine Mensa
Class V (fewer than 125 members)
Diamond: South Coast Mensa
Ruby: Northeast Indiana Mensa, High Mountain Mensa, Wyoming Mountain Mensa, Tallahassee Area Mensa