In 2023, about 33 percent of Americans were Protestants, down from 69 percent in 1948. In that same year, about 22 percent of Americans were Catholic, while 22 percent said that they had no religion at all.
Share of Americans who identify as Protestant, Roman Catholic, Mormon, Jewish, Muslim, another religion, or no religion in the United States from 1948 to 2023
Prior question wording:
2000 - 2005: "What, if any, is your religious preference -- are you Protestant, Roman Catholic, Jewish, Mormon, Muslim, or an Orthodox religion such as the Greek or Russian Orthodox Church?"
1979 - 2000: "What is your religious preference -- is it Protestant, Roman Catholic, Jewish, or an Orthodox religion such as the Greek or Russian Orthodox Church?"
1977 - 1978: "What is your religious preference -- Protestant, Roman Catholic, Jewish or Eastern Orthodox?"
1948 - 1976: "What is your religious preference -- is it Protestant, Roman Catholic or Jewish?"
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Gallup. (April 4, 2024). Share of Americans who identify as Protestant, Roman Catholic, Mormon, Jewish, Muslim, another religion, or no religion in the United States from 1948 to 2023 [Graph]. In Statista. Retrieved June 05, 2025, from https://www.statista.com/statistics/245478/self-described-religious-identification-of-americans/
Gallup. "Share of Americans who identify as Protestant, Roman Catholic, Mormon, Jewish, Muslim, another religion, or no religion in the United States from 1948 to 2023." Chart. April 4, 2024. Statista. Accessed June 05, 2025. https://www.statista.com/statistics/245478/self-described-religious-identification-of-americans/
Gallup. (2024). Share of Americans who identify as Protestant, Roman Catholic, Mormon, Jewish, Muslim, another religion, or no religion in the United States from 1948 to 2023. Statista. Statista Inc.. Accessed: June 05, 2025. https://www.statista.com/statistics/245478/self-described-religious-identification-of-americans/
Gallup. "Share of Americans Who Identify as Protestant, Roman Catholic, Mormon, Jewish, Muslim, Another Religion, or No Religion in The United States from 1948 to 2023." Statista, Statista Inc., 4 Apr 2024, https://www.statista.com/statistics/245478/self-described-religious-identification-of-americans/
Gallup, Share of Americans who identify as Protestant, Roman Catholic, Mormon, Jewish, Muslim, another religion, or no religion in the United States from 1948 to 2023 Statista, https://www.statista.com/statistics/245478/self-described-religious-identification-of-americans/ (last visited June 05, 2025)
Share of Americans who identify as Protestant, Roman Catholic, Mormon, Jewish, Muslim, another religion, or no religion in the United States from 1948 to 2023 [Graph], Gallup, April 4, 2024. [Online]. Available: https://www.statista.com/statistics/245478/self-described-religious-identification-of-americans/