UnitedHealthcare has the most members in Texas, according to the company's website.
Membership totals include employer-sponsored and individual, Medicaid, and Medicare plans. Not all states had information available. The data is from early 2023 unless otherwise noted in parentheses.
UnitedHealthcare's total membership by state:
Texas: 4.6 million
Florida: 3.9 million
New York: 3.5 million
California: 2.8 million
Ohio: 2 million (2021)
Arizona: 1.9 million
North Carolina: 1.8 million (2021)
Wisconsin: 1.7 million (2021)
Missouri: 1.6 million (2021)
New Jersey: 1.5 million (2022)
Illinois: 1.5 million (2021)
Tennessee: 1.5 million (2021)
Colorado: 1.4 million
Georgia: 1.2 million
Virginia: 1.1 million
Pennsylvania: 1.1 million (2022)
Louisiana: 1 million (2021)
Washington: 991,000
Indiana: 985,000 (2021)
Michigan: 872,000 (2021)
Maryland: 856,000
Minnesota: 800,000
Oklahoma: 613,000 (2021)
Connecticut: 608,000 (2022)
South Carolina: 560,000 (2021)
Massachusetts: 531,000 (2022)
Mississippi: 500,000 (2021)
Nebraska: 498,000 (2021)
Kansas: 486,000 (2021)
Alabama: 484,000
Utah: 470,000
Iowa: 463,000 (2021)
Oregon: 421,000
Arkansas: 369,000 (2022)
West Virginia: 288,000
Rhode Island: 255,000 (2022)
Kentucky: 240,000
New Mexico: 209,000
Idaho: 159,000
New Hampshire: 155,000 (2022)
District of Columbia: 128,000
Maine: 120,000 (2022)
Delaware: 106,000 (2022)
Wyoming: 84,000
South Dakota: 69,000 (2021)
Montana: 68,000
Vermont: 53,000 (2022)
North Dakota: 50,000 (2021)
Alaska: 26,000