San Francisco, perhaps not surprisingly, ranked first, with a gay population of 6.2 percent. Memphis came in at 3.1 percent gay, ranking ahead of only Pittsburgh and Birmingham.
The survey is outllned and explained thoroughly in a terrific piece from the New York Times' blog The Upshot.
Nationwide, Gallup says, 3.6 percent of adults consider themselves gay, lesbian, bisexual or transgender. Gallup’s numbers are based on surveys of 374,325 adults across the 50 largest metropolitan areas, conducted between June 2012 and December 2014. Biggest surprise in the survey? Salt Lake City, which ranks as the seventh-most gay city.