Sapphire: Boston Mensa, Greater Los Angeles Area Mensa, Gulf Coast Mensa, Mensa of Western Washington, Minnesota Mensa, North Texas Mensa, San Diego Mensa, San Francisco Regional Mensa and Southeast Michigan Mensa
Emerald: Greater New York Mensa, Metropolitan Washington Mensa, Greater Phoenix Mensa, Delaware Valley Mensa and Mensa In Georgia
Class II (400 to 899 members)
Diamond: Orange County Mensa
Ruby: Orange County Mensa
Sapphire: Central Florida Mensa, Central Indiana Mensa, Western Pennsylvania Mensa and Mensa of Wisconsin
Emerald: Denver Mensa, Central New Jersey Mensa, Mid-America Mensa, Mensa 76, Lonestar Mensa, San Antonio Mensa, Mensa of Eastern North Carolina, Cincinnati Area Mensa, Broward Mensa, Palm Beach County Mensa, Oregon Mensa, Columbus Area Mensa, Northern New Jersey Mensa, St Louis Area Mensa, Connecticut/Western Massachusetts, Tampa Bay Mensa, Central Pennsylvania Mensa, Sacramento Regional Mensa and Cleveland Area Mensa
Class III (200 to 399 members)
Diamond: Memphis Mensa
Ruby: Memphis Mensa
Sapphire: Charlotte-Blue Ridge Mensa, East Central Ohio Mensa, Eastern Oklahoma Mensa, Lehigh-Pocono Mensa, Middle Tennessee Mensa, Nebraska-Western Iowa Mensa, Northern Nevada Mensa, Piedmont Area Mensa and Tucson Mensa
Emerald: Dayton Area Mensa, Mensa Hawaii, Mensa of Northeastern New York, Utah Mensa, Mensa of Jacksonville, Central Oklahoma Mensa, Southern Connecticut Mensa, Plains and Peaks Mensa, Tidewater Mensa, Western New York Mensa, Central Iowa Mensa, Western Michigan Mensa, Southern Nevada Mensa, Richmond Area Mensa, Channel Islands Mensa, North Alabama Mensa, Miami Mensa, Southwest by South Florida Mensa, Space Coast Area Mensa, New Hampshire/Maine Mensa, Eastern Oklahoma Mensa, Rhode Island Mensa, Manasota Mensa, New Mexico Mensa and New Orleans Mensa
Class IV (100 to 199 members)
Diamond: Northwest Florida Mensa
Sapphire: Heart of Illinois Mensa, Mensa Alaska and Northwest Florida Mensa
Emerald: Boulder/Front Range Mensa. Chattanooga Mensa. Maine Mensa, Blue Grass Mensa, Mensa of the Southern Tier of NY, Permian Basin Mensa, Sunflower Mensa, Central New York Mensa, Paso del Norte Mensa, Mid-Michigan Mensa, Iowa-Illinois Mensa. Savannah Area Mensa of Georgia, Triad Mensa, Delaware Mensa, Central South Carolina Mensa, Southwest Idaho Mensa, French Broad Mensa, Coastal Carolina Mensa, Missouri Ozarks Mensa, Vermont Mensa, Redwood Empire Mensa, Mississippi Mensa, Eastern Washington/Northern Idaho and Mid-Hudson Mensa
Class V (fewer than 100 members)
Diamond: North Dakota Mensa
Sapphire: North Dakota Mensa and Monterey County Mensa
Emerald: Borderline Mensa, South Coast Mensa, Northern Michigan Mensa, High Mountain Mensa, Fort Wayne Mensa, South Dakota Mensa, Wyoming Mountain Mensa, Sangamon Valley Mensa, Columbia River Mensa, Northern Louisiana Mensa and Maumee Valley Mensa