Census Bureau Releases Estimates of Same-Sex Married Couples
http://www.census.gov/newsroom/releases/archives/2010_census/cb11-cn181.html
Press release with links to technical paper and detailed statistical tables with state level totals for Census 2000, Census 2010, and the American Community Survey. There were 131,729 same-sex married couple households and 514,735 same-sex unmarried partner households in the U.S. at the time of the 2010 Census. From the Census Bureau
