According to a recent Gallup survey, of the total U.S. adult population (approximately 243 million U.S. adults), less than 1 percent, only .8 percent (approximately 2 million U.S. adults), are part of a same-sex couple.
The same survey finds that approximately .3 percent (.3%) of U.S. adults are married to a same-sex spouse, a mere .5 percent (.5%) identify as being in a same-sex domestic partnership and, of the estimated .8 percent (.8%) of the total U.S. adult population that are a part of a same-sex couple, 780,000 are married. In other words, of the estimated 2 million adults that are a part of a same-sex couple, 39 percent (39%) are married.
Gallup’s survey also has statistics for “All others.” “All others” account for the estimated 241,000,000 U.S. adults (99.2%) that are not either married with a same-sex spouse or unmarried and living with a same-sex domestic partner.
“At 990,000, Gallup’s estimated number of same-sex married or domestic partner couples in the U.S. is significantly higher than past estimates derived from the U.S. Census Bureau’s American Community Survey (ACS), which in 2013 put the number of same-sex couples at roughly 727,000,” says Gallup. “Of this group, more than 250,000 reported that they were married. The Census Bureau, however, has cautioned that the ACS estimates of married same-sex couples may not be completely reliable as they have determined that a large portion of recorded married same-sex couples may actually be married heterosexual couples who miscoded the sex of one of the spouses."
“These data are based on 80,568 interviews conducted on Gallup Daily tracking from Jan. 28-April 19, 2015,” says Gallup.