A Gallup survey released Wednesday has found that more adult Americans are identifying as L.G.B.T., a shift that pollsters see as driven, at least in part, by people in younger generations who are more likely to consider themselves to be something other than heterosexual.
The poll found that 5.6 percent of adults identified as lesbian, gay, bisexual or transgender, rising from 4.5 percent in 2017, the last time Gallup reported an annual update.
The poll also found that more than half of L.G.B.T. adults identified as bisexual. One in six adults in Generation Z, people born between 1997 and 2002, identify as L.G.B.T., the poll found.