Current estimates of the US lesbian/gay/bisexual population

Between 2.2% and 3% of the total US adult population identifies as lesbian, gay or bisexual
Source: Williams Institute, 2014

Most population surveys include categories for individuals identifying as LGBT. Very few surveys focus on only Lesbian/Gay/Bisexual and most surveys do not specifically include other identities such as pansexual, queer or asexual. In 2014, the Williams Institute reviewed two different studies that included only Lesbian/Gay and Bisexual (omitting Transgender). These two studies, the National Health Interview Survey and the General Social Survey found the L/G/B adult population in the US to be between 2.2% and 3.0%. That's more than the size of Los Angeles and Chicago combined --- the 2nd and 3rd largest cities in the US.

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Read the full report from the Williams Institute on comparing LGBT studies.

LGBT Demographics: Comparisons among population-based surveys

References:

Gates, G. J. (2014). LGBT Demographics: Comparisons among population-based surveys. The Williams Institute, UCLA School of Law. Retrieved from http://williamsinstitute.law.ucla.edu/wp-content/uploads/lgbt-demogs-sep-2014.pdf

Gender Identity Gender identity icon Our core sense of who we are as a man, a woman, a mixture of both, or neither.

Gender Expression Gender expression icon How we show up in the world through choices like clothing, hair style, mannerisms or tone of voice.

Attraction attraction icon How we feel toward others sexually, romantically and/or emotionally.

Biological Sex Biological sex icon Physical attributes such as reproductive organs and genitalia, chromosomes, genes and hormone levels.

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Most population surveys group LGBT together in their questions. Visit the STATS section for the most recent LGBT studies from Gallup, the Williams Institute, the CDC and Pew Research.