A March 10 report from America's Health Insurance Plan's Center for Policy Research provides the total number of individuals per state enrolled in a Medicare Supplement plan.
The supplement data was last updated Dec. 31, 2020.
Becker's calculated the percentage of each state's population that is enrolled in a Medicare Supplement plan using data from the 2020 U.S. Census.
The states ranked by the share of their population enrolled in Medigap:
Wyoming: 10 percent
Iowa: 9.6 percent
Nebraska: 9.3 percent
Kansas: 8.6 percent
South Dakota: 8.4 percent
Montana: 8.4 percent
Vermont: 8.3 percent
New Hampshire: 7.1 percent
North Dakota: 7.1 percent
Delaware: 6.6 percent
Arkansas: 6.4 percent
Illinois: 6.2 percent
Indiana: 5.8 percent
Mississippi: 5.7 percent
South Carolina: 5.5 percent
Pennsylvania: 5.4 percent
New Jersey: 5.2 percent
Ohio: 5.2 percent
Wisconsin: 5.2 percent
Virginia: 5.1 percent
Oklahoma: 5.1 percent
Kentucky: 5.1 percent
Missouri: 5 percent
West Virginia: 5 percent
Massachusetts: 4.9 percent
Idaho: 4.9 percent
Arizona: 4.8 percent
North Carolina: 4.8 percent
Tennessee: 4.6 percent
Maine: 4.6 percent
Rhode Island: 4.6 percent
Oregon: 4.4 percent
Connecticut: 4.3 percent
Florida: 4.2 percent
Michigan: 4.2 percent
Maryland: 4.2 percent
Minnesota: 4 percent
Washington: 4 percent
Colorado: 3.9 percent
Alabama: 3.9 percent
Georgia: 3.6 percent
New Mexico: 3.3 percent
Louisiana: 3.3 percent
Nevada: 3.2 percent
Texas: 3.1 percent
Utah: 2.6 percent
Alaska: 2.4 percent
New York: 2.4 percent
Washington, D.C.: 1.7 percent
California: 1.5 percent
Hawaii: 0.9 percent