The U.S. metropolitan region with the largest concentration of gay and lesbian people is San Francisco. That’s not exactly news, but there are more than a few surprises in the Gay/Lesbian Index’s metro-area rankings. Developed by Gary Gates, a demographer at UCLA’s Williams Institute, the Gay/Lesbian Index value tells you how the proportion of same-sex couples among all households of a given metro area compares to the average for the entire U.S. An index value of 2, for example, means that the proportion of same-sex couples in that metro area is twice that of the nation.
New York, Los Angeles, Miami, Washington, D.C., Boston, San Diego, Denver, Seattle, and Portland, Oregon, all make the list of the 20 gayest metros. But so do Dallas, Columbus, Ohio, Santa Rosa and Sacramento, Springfield, Massachusetts, Portland, Maine, and college towns like Eugene, Oregon, Ann Arbor, Michigan and Ithaca, New York.