[5] From 1988 to 2009, support for recognized same-sex marriage increased between 1% and 1.5% per year, and accelerated thereafter,[6] rising above 50% in Pew Research Center polling for the first time in 2011.
[9] 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.
"[2] Public opinion of same-sex marriage in the United States has changed radically since polling of the American people regarding the issue was first conducted in 1988.
[13] A Pew Research Center poll, conducted from May 21, 2008, to May 25, 2008, found that, for the first time, a majority of Americans did not oppose same-sex marriage, with opposition having fallen to 49%.
[17] Continual polling by Gallup over the course of more than two decades has shown that support for same-sex marriage has grown rapidly, while opposition has simultaneously collapsed.
[20] A 2023 poll by the New York Times and Siena College Research Institute found that 70% of Americans supported same-sex marriage, while 22% opposed it.
[24] A September 2022 Grinnell College National Poll found that 74% of Americans believe same-sex marriage should be a guaranteed right while 13% disagreed and 13% were uncertain.
[35] The poll was reported by NBC News as notable as it found that 55% of Southerners supported same-sex marriage, which represented an historic change for a region that was previously staunchly opposed.
[37] An August 2017 NBC News/The Wall Street Journal poll found that 60% of Americans supported same-sex marriage, 33% opposed, and 7% had no opinion.
[46] An April Public Religion Research Institute poll sponsored by the Ford Foundation found that 55% of all Americans supported same-sex marriage, while 39% were opposed.
[47] A Pew Research Center poll released in March found 54% of Americans favored same-sex marriage, 39% opposed, and 7% didn't know.
[50][51] A Washington Post/ABC News poll from February–March found that a record high of 59% of Americans approved of same-sex marriage, with only 34% opposed and 7% with no opinion.
50% of respondents agreed that the Equal Protection Clause of the Fourteenth Amendment to the United States Constitution guarantees the freedom to marry regardless of sex or sexual orientation, while 41% disagreed, and 9% had no opinion.
[53] A November/December Public Religion Research Institute poll sponsored by the Ford Foundation found that 53% of all Americans supported same-sex marriage, while 41% were opposed and 6% unsure.
[54] A Bloomberg National Poll conducted by Selzer & Company taken during September 20–23, 2013 found that 55% supported same-sex marriage, while 36% opposed and 9% were unsure.
[55] A September Quinnipiac University poll found that 56% of American adults and 57% of registered voters supported same-sex marriage.
[60] The same poll also found that 33% of Americans who thought same-sex couples should be allowed to legally marry said they once held the opposite view and had changed their opinion.
[67] A May 22 NBC News/Wall Street Journal poll showed that 54% of Americans would support a law in their state making same-sex marriage legal, with 40% opposed.
[7] A March 7–10 ABC News/Washington Post poll found 52% of adults thought it should be legal for same-sex couples to get married, while 42% disagreed and 5% were unsure.
[55] A March survey by the Public Religion Research Institute found 52% of Americans supported allowing same-sex couples to marry, while 44% opposed.
[74] A February 29 – March 3 NBC News/Wall Street Journal poll found 49% of adults supported allowing same-sex couples to marry, while 40% opposed.
[76] In March and April, polls by Gallup,[77] ABC News/Washington Post,[78] and CNN/Opinion Research[79] all showed that a majority of Americans approved of same-sex marriage.
[79] In March 2011, Democracy Corps conducted a survey of 1,000 likely 2012 election voters in 50 congressional districts considered political battlegrounds.
[77] An August Associated Press/National Constitution Center poll found 52% agreed that the federal government should give legal recognition to marriages between couples of the same sex, an increase from 46% in 2009.
[82] Earlier polls in February and May found opinion divided within the margin of error, but with a consistent trend of increasing support and decreasing opposition compared to prior years.
[89] A LifeWay Research poll conducted in August 2009 found that 61% of Americans born between 1980 and 1991 saw nothing wrong with two people of the same gender getting married, while 39% disagreed.
[90] A December poll revealed that 32% supported the concept of civil unions, 31% would offer full marriage rights to same-sex couples, and 30% opposed any legal recognition for gay and lesbian partnerships.