(NBC News) — Approximately 5 percent of young adults in the U.S. identify as transgender or nonbinary, and an increasing number say they know someone who is trans, according to data released Tuesday by the Pew Research Center. 

Adults younger than 30 are more likely than older Americans to say their gender differs from their sex assigned at birth. The findings estimate that the total number of adults who identify as transgender or nonbinary (meaning they identify as neither exclusively male nor female) in the U.S. is 1.6 percent.

The new data, which was weighted to be representative of the entire U.S. adult population, comes from an online survey panel from mid-May of 10,188 randomly sampled people. The findings are part of a broader survey that will be released some point this summer about the general public’s “attitudes about gender identity and issues related to people who are transgender or nonbinary,” the report states.

Read the full story on NBCNews.com.