Skip to Content

Numbers, Facts and Trends Shaping Your World

July 29, 2015

Changing Attitudes on Gay Marriage

Public Opinion

In Pew Research polling in 2001, Americans opposed same-sex marriage by a 57% to 35% margin.

Since then, support for same-sex marriage has steadily grown. Based on polling in 2015, a majority of Americans (55%) support same-sex marriage, compared with 39% who oppose it. See the latest data on same-sex marriage.

Attitudes by Generation

This is due in part to generational change. Younger generations express higher levels of support for same-sex marriage.

However, older generations also have become more supportive of same-sex marriage in recent years.

Attitudes by Religious Affiliation

Among people who are religiously unaffiliated, a solid majority have supported same-sex marriage since 2001.

And among Catholics and white mainline Protestants, roughly six-in-ten now express support for same-sex marriage.

Support for same-sex marriage among black Protestants and white evangelical Protestants remains lower than among other religious groups.

Attitudes by Political Party

Majorities of both Democrats (66%) and independents (61%) now favor same-sex marriage.

A smaller share of Republicans fave same-sex marriage (32%), though they also have become more supportive over the past decade.

Attitudes by Political Ideology

Support for same-sex marriage now stands at 79% among self-described liberals and 64% among moderates.

Far fewer conservatives (30%) support same-sex marriage.

Attitudes by Race

In 2001, roughly one-third of both whites and blacks expressed support for same-sex marriage. Today, 58% of whites support same-sex marriage, as do 39% of blacks.

Attitudes by Gender

Support for same-sex marriage has risen among both men and women in recent years. Today, 58% of women and 53% of men support same-sex marriage.

Source: Aggregated data from Pew Research Center polls conducted in each year. Question wording can be found here, and information on the Pew Research Center's polling methodology can be found here.