Overall, 4.1 percent of Americans aged 18 or older personally identify as lesbian, gay, bisexual, or transgender, according to a Gallup survey. This figure is up from 3.5 percent in 2012. By generation, the percentage who identify themselves as LGBT looks like this...
LGBT identification by generation
7.3% of Millennials
3.2% of Gen Xers
2.4% of Baby Boomers
1.4% of older Americans
Why are Millennials more likely than older generations to identify themselves as LGBT? "Millennials are the first generation in the U.S. to grow up in an environment where social acceptance of the LGBT community markedly increased," says Gallup. "This may be an important factor in explaining their greater willingness to identify as LGBT."
Source: Gallup, In U.S., More Adults Identifying as LGBT