Public opinion of same-sex marriage in the United States

Public opinion of same-sex marriage in the United States has significantly changed since the 1990s, and the overwhelming majority of Americans now favor same-sex marriage.

From 1988 to 2009, support for recognized same-sex marriage increased between 1% and 1.5% per year, and accelerated thereafter, rising above 50% in Pew Research Center polling for the first time in 2011. A 2022 Public Religion Research Institute poll found that a majority of people in every state support same-sex marriage except in Mississippi, where there is plurality support. The same poll updated in 2024 found majority public support in every state.

A 2023 New York Times/Siena poll found that 70% of Americans support same-sex marriage and 22% oppose it. Younger generations report higher approval; in the 2022 General Social Survey, almost 80% of 18–34 year olds either agreed or strongly agreed that same-sex couples should have the right to marry. Garretson (2018) writes: "The transformation of America's response to homosexuality has been — and continues to be — one of the most rapid and sustained shifts in mass attitudes since the start of public polling."

According to Gallup, in July 2015, just after Obergefell was decided, 74% of Democrats, 62% of independents, and 30% of Republicans agreed that same-sex marriages should be legally recognized. A year later, support had jumped to 79% of Democrats, 65% of independents, and 40% of Republicans. In 2021 and 2022, Democratic support was at 83% and 87%, independents was at 72% and 77%, while Republican support reached a record high of 55% in both years. In May 2025, a record-high 88% of Democrats supported same-sex marriage, support from independents stood at 76%, while Republican support dipped back down to 41%.