Top 10 Highest And Lowest States By Estimated Percentage Of Uninsured Motorists, 2012 (1)
  Highest   Lowest
Rank State Percent uninsured Rank State Percent uninsured
1 Oklahoma 25.9% 1 Massachusetts 3.9%
2 Florida 23.8 2 Maine 4.7
3 Mississippi 22.9 3 New York 5.3
4 New Mexico 21.6 4 Utah 5.8
5 Michigan 21.0 5 North Dakota 5.9
6 Tennessee 20.1 6 Pennsylvania 6.5
7 Alabama 19.6 7 Nebraska 6.7
8 Rhode Island 17.0 8 Idaho 6.7
9 Colorado 16.2 9 South Carolina 7.7
10 Washington 16.1 10 South Dakota 7.8
(1) Percentage of uninsured drivers, as measured by the ratio of uninsured motorists (UM) claims to bodily injury (BI) claim frequencies. Source: Insurance Research Council.