Here is a list of HMO volume per state and HMO market penetration, according to data from Kaiser Family Foundation.
The data includes all licensed HMOs in the state that provided commercial, Medicaid-only or Medicare-only benefits in the state. The information was updated in January 2016.
Alabama
• Total number: 66
• Market penetration: 7.2 percent
Alaska
• Total number: 39
• Market penetration: 0.2 percent
Arizona
• Total number: 123
• Market penetration: 32.6 percent
Arkansas
• Total number: 71
• Market penetration: 14.2 percent
California
• Total number: 178
• Market penetration: 59.2 percent
Colorado
• Total number: 98
• Market penetration: 16.6 percent
Connecticut
• Total number: 77
• Market penetration: 7 percent
Delaware
• Total number: 37
• Market penetration: 26.9 percent
Florida
• Total number: 163
• Market penetration: 35.6 percent
Georgia
• Total number: 113
• Market penetration: 27 percent
Hawaii
• Total number: 59
• Market penetration: 58.2 percent
Idaho
• Total number: 60
• Market penetration: 9.2 percent
Illinois
• Total number: 106
• Market penetration: 24 percent
Indiana
• Total number: 81
• Market penetration: 23.4 percent
Iowa
• Total number: 58
• Market penetration: 9.3 percent
Kansas
• Total number: 57
• Market penetration: 19.3 percent
Kentucky
• Total number: 76
• Market penetration: 36.4 percent
Louisiana
• Total number: 69
• Market penetration: 35.3 percent
Maine
• Total number: 49
• Market penetration: 11.5 percent
Maryland
• Total number: 83
• Market penetration: 34.2 percent
Massachusetts
• Total number: 93
• Market penetration: 34.2 percent
Michigan
• Total number: 111
• Market penetration: 38.9 percent
Minnesota
• Total number: 84
• Market penetration: 26.1 percent
Mississippi
• Total number: 51
• Market penetration: 25.7 percent
Missouri
• Total number: 87
• Market penetration: 15.8 percent
Montana
• Total number: 50
• Market penetration: 4.4 percent
Nebraska
• Total number: 55
• Market penetration: 15.1 percent
Nevada
• Total number: 89
• Market penetration: 37 percent
New Hampshire
• Total number: 50
• Market penetration: 21.3 percent
New Jersey
• Total number: 103
• Market penetration: 25 percent
New Mexico
• Total number: 67
• Market penetration: 45.2 percent
New York
• Total number: 141
• Market penetration: 35.6 percent
North Carolina
• Total number: 125
• Market penetration: 7.6 percent
North Dakota
• Total number: 34
• Market penetration: 18.5 percent
Ohio
• Total number: 99
• Market penetration: 31.7 percent
Oklahoma
• Total number: 74
• Market penetration: 7.1 percent
Oregon
• Total number: 93
• Market penetration: 40.2 percent
Pennsylvania
• Total number: 120
• Market penetration: 31.3 percent
Rhode Island
• Total number: 44
• Market penetration: 32.6 percent
South Carolina
• Total number: 92
• Market penetration: 24.3 percent
South Dakota
• Total number: 41
• Market penetration: 12 percent
Tennessee
• Total number: 104
• Market penetration: 32.3 percent
Texas
• Total number: 154
• Market penetration: 24.7 percent
Utah
• Total number: 71
• Market penetration: 30.3 percent
Vermont
• Total number: 32
• Market penetration: 2.8 percent
Virginia
• Total number: 109
• Market penetration: 20.4 percent
Washington
• Total number: 102
• Market penetration: 31.5 percent
West Virginia
• Total number: 50
• Market penetration: 29.8 percent
Wisconsin
• Total number: 95
• Market penetration: 34.4 percent
Wyoming
• Total number: 40
• Market penetration: 0.8 percent