In a special report released Thursday, Gallup revealed that 3.4 percent of 121,290 interviewees responded "yes" to the question, "Do you, personally, identify as lesbian, gay, bisexual or transgender?"
The question was included in Gallup's daily tracking interviews with U.S. adults, conducted from June 1 to Sept. 30 of this year.
"This is the largest single study of the distribution of the lesbian, gay, bisexual and transgender (LGBT) population in the U.S. on record," Gallup's Gary Gates and Frank Newport explained in the release.
Additionally, 4.4 percent of respondents said they did not know, or refused to respond to the question.
According to the survey, nonwhite Americans were more likely to identify as LGBT, comprising about one-third of the "yes" respondents. On top were African-Americans with 4.6 percent identifying as LGBT, followed by 4.0 percent of Hispanics and 4.3 percent of Asians. The 3.2 percent of white respondents identifying as LGBT brought down the average.
Other insights of the data include that female respondents were more likely to identify as LGBT, and those respondents were just as likely to be raising children as non-LGBT women: Around 32 percent of both "yes" and "no" respondents reported having children under 18 in the home. This was not true of male LGBT respondents, who were around half as likely to be raising children as other men.