Percent of Same-sex Couple Households, by State

The following table lists the percentage of same-sex partner households in every U.S. state according to the Census 2000, the 2010 Census and the 2010 American Community Survey. The American Community Survey (ACS) lists its estimates and its margin of error.

Area Census 2000 2010 Census Estimate (ACS 2010) Std. Err. (ACS 2010)
United States0.5630.7730.5180.006
Alabama0.4670.5980.3000.039
Alaska0.5320.7170.2950.086
Arizona0.6490.8800.6490.053
Arkansas0.4240.6110.3600.050
California0.8010.9980.7260.022
Colorado0.6060.8170.6180.053
Connecticut0.5670.7840.6720.067
Delaware0.6250.9790.5650.095
District of Columbia1.4811.9291.1720.148
Florida0.6480.8840.5760.029
Georgia0.6420.8320.4560.036
Hawaii0.5920.9330.7790.100
Idaho0.3990.5600.3150.067
Illinois0.4980.6710.4140.028
Indiana0.4370.6570.4020.038
Iowa0.3220.5350.3720.048
Kansas0.3830.5550.3300.050
Kentucky0.4470.6730.4050.041
Louisiana0.5320.7030.3180.039
Maine0.6550.9700.7740.109
Maryland0.5680.7880.4850.048
Mass0.7001.0230.8290.059
Michigan0.4060.5620.3890.028
Minnesota0.4830.6570.6020.040
Mississippi0.4560.5630.2580.048
Missouri0.4300.6420.4250.037
Montana0.3400.5600.4010.100
Nebraska0.3500.5200.3940.059
Nevada0.6620.9260.5510.072
New Hampshire0.5700.8930.5530.096
New Jersey0.5420.7500.4940.044
New Mexico0.6630.9840.7010.094
New York0.6590.8920.6360.028
North Carolina0.5170.7280.4740.033
North Dakota0.2730.3960.2920.074
Ohio0.4260.6210.4020.025
Oklahoma0.4290.6710.4430.047
Oregon0.6700.9860.6950.070
Pennsylvania0.4430.6700.4380.028
Rhode Island0.6050.8860.8850.155
South Carolina0.4960.6400.3180.041
South Dakota0.2850.4310.1810.063
Tennessee0.4560.6550.4000.040
Texas0.5800.7560.4930.024
Utah0.4810.6620.4470.055
Vermont0.8031.0910.6970.109
Virginia0.5110.6720.4430.039
Washington0.7000.9270.6320.048
West Virginia0.3960.6860.3110.054
Wisconsin0.3950.5980.4140.030
Wyoming0.4170.5060.1750.069

Source: U.S. Census Bureau, Census 2000 & 2010, and the American Community Survey 2010

A Primer on Same-Sex Marriage, Civil Unions, Domestic Partnerships, and Defense of Marriage ActsGender IssuesSame-sex Households With Children in the United States
Same-Sex Partners Sharing Households by U.S. State

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