Nearly 2 million Americans are part of a same-sex couple, including 780,000 who are married — much higher than previously thought, according to a new poll.
Days before the Supreme Court will hear arguments over a challenge to same-sex marriage bans in states, a new Gallup poll shows the number of same-sex couples in the United States is growing rapidly in just the last few years.
Gallup reported Friday that roughly 0.3 percent of all adults in the U.S. are married to a same-sex spouse, and all told, 0.5 percent say they are in a same-sex relationship. In total, Gallup estimates there are 990,000 same-sex couples across the nation.
Those figures are significantly higher than other attempts to quantify the number of same-sex relationships in the nation. In 2013, the Census Bureau reported that 727,000 same-sex couples in America, with just 250,000 reporting themselves as married. And a 2013 survey by the Centers for Disease Control and Prevention estimated only 690,000 same-sex couples and only 130,000 marriages.
The rapid increase comes as states have increasingly cleared the way for same-sex marriages in their states, either via the legislature or through court rulings. Just 13 states explicitly ban same-sex marriages at this point.
The case pending before the Supreme Court could require the justices to weigh in on whether there is a constitutional right to marry, and whether same-sex marriages must be recognized across state borders.