Using data from the Behavioral Risk Factor Surveillance System, the Youth Risk Behavior Surveillance System, and advanced statistical modeling, this study estimates the population of adults and youth who identify as transgender nationally and in each of the 50 states, plus the District of Columbia. It also provides estimates regarding gender, age, and race/ethnicity.

Recent data from the CDC’s Behavior Risk Factor Surveillance System (BRFSS) and Youth Risk Behavior Survey (YRBS) provide an opportunity to update prior population estimates of the number of adults and youth who identify as transgender in the U.S. In 2016 and 2017, the Williams Institute used data from the 2014-15 BRFSS to estimate the number of adults (ages 18 and older) and youth (ages 13 to 17) who identify as transgender. Since then, a total of 43 states have used the BRFSS optional gender identity module for at least one year, providing more years of data from more states since these initial estimates. Additionally, in 2017, the YRBS, a national survey of high school students, began asking respondents if they are transgender. Since 2017, fifteen states have included […]