D.C. has retained its status of having the highest number of same-sex couples per 1,000 households compared to all 50 states, and it had a 40 percent increase in the number of people identifying themselves as same-sex couples since 2000.
Those are among the findings of newly released data from the 2010 U.S. Census as analyzed by the Williams Institute, a think tank affiliated with the University of Southern California at Los Angeles. The institute specializes in LGBT related issues.
The data show that Maryland had a 51 percent increase in the reported number of same-sex couples from 2000 to 2010 and Virginia saw a 49 percent increase in same-sex couples for that same ten-year period.
“The increases are far higher than population increases,” said Williams Institute official Gary Gates. “So we feel most of the increases we’re seeing in states, cities, and counties are attributable to more people reporting they’re a couple than ten years ago.”
http://www.washingtonblade.com/2011/08/20/d-c-same-sex-couples-up-40-in-2010-census/