This implies that there are approximately 9 million LGBT Americans, a figure roughly equivalent to the population of New Jersey.An estimated 3.5% of adults in the United States identify as lesbian, gay, or bisexual and an estimated 0.3% of adults are transgender.The brief concludes with estimates of the size of the LGBT population in the United States. This research brief discusses challenges associated with collecting better information about the LGBT community and reviews eleven recent US and international surveys that ask sexual orientation or gender identity questions. Increasing numbers of population-based surveys in the United States and across the world include questions that allow for an estimate of the size of the lesbian, gay, bisexual, and transgender (LGBT) population. Infographics Visualizations of our research.Survey Measures How to ask sexual orientation and gender identity questions.Data Interactives Customizable visualizations of our data.LGBT FAQs Find answers to our most frequently asked questions.