The Pew survey summarizes the difference between the LGBT population and the non-LGBT Americans thusly:
The survey finds that the LGBT population is distinctive in many ways beyond sexual orientation. Compared with the general public, Pew Research LGBT survey respondents are more liberal, more Democratic, less religious, less happy with their lives, and more satisfied with the general direction of the country. On average, they are younger than the general public. Their family incomes are lower, which may be related to their relative youth and the smaller size of their households. They are also more likely to perceive discrimination not just against themselves but also against other groups with a legacy of discrimination.Go ahead and check out the full survey and read more details about the LGBT population yourself!