Atheism in the United States

A 2023 poll by the Pew Research Center found that 4% of Americans in the United States self-identified as atheists. This is an increase from 3.1% of Americans in 2014. However, in 2014, 9% of Americans agreed with the statement "Do not believe in God" while 2% agreed with the statement "Do not know if they believe in God". According to a poll by non-profit PRRI in 2023, 4% of Americans were atheist and 5% were agnostic. Polling by Gallup in 2022 showed that 17% of respondents replied "No" when asked "Do you believe in God?" in a binary fashion, but when worded differently in 2023, Gallup found that 12% of respondents replied they "Do not believe in" God and 14% replied they were "Not sure about" the existence of God. According to Gallup, there are variations in their polling results because they ask about God in three different wordings, each with a different result.

According to the 2014 General Sociological Survey, the number of atheists and agnostics in the U.S. grew over the previous 23 years. In 1991, only 2% identified as atheist, and 4% identified as agnostic; while in 2014, 3.1% identified as atheists, and 5% identified as agnostics.

According to the 2008 ARIS, only 2% the US population was atheist, while 10% were agnostics.

One 2018 research paper using indirect methods estimated that 26% of Americans are atheists, which is much higher than the 3%-11% rates that are consistently found in surveys. However, methodological problems have been identified with this particular study; in particular, it has been posted that many people might not have a binary outlook to the question of the existence of God.

Accurate demographics of atheism are difficult to obtain since conceptions of atheism and self-identification are context dependent by culture. In 2009, Pew stated that only 5% of the US population did not have a belief in a god and out of that small group only 24% self-identified as "atheist", while 15% self-identified as "agnostic" and 35% self-identified as "nothing in particular". In 2023, Pew stated that 23% of atheists believe in a higher power, but not a god.

Views of atheists
A June–September 2014 Pew Research Center survey found that 69% of atheist Americans identity as Democratic or lean Democratic, 17% have no lean, 15% identify as Republican, 56% liberal, 29% moderate, 10% conservative, and 5% don't know. Among Americans who don't believe in god/gods, 65% identity as Democratic or lean Democratic, 17% have no lean, 18% identity as Republican, 50% liberal, 31% moderate, 13% conservative, and 6% don't know. That makes atheist and nonbelievers in god/gods Americans as belief groups to be the most politically liberal belief group in America and the least politically aligned belief group with Republicans and conservatism in the United States.

Views about atheists
In 2014, a Pew survey found that 53% of Americans claimed they would be less likely to vote for a presidential candidate who was an atheist.

Groups that include atheists
A October 2013 Public Religion Research Institute American Values Survey found 58% of American libertarians report they believe in a personal god, 25% believe god is an impersonal force in the universe, and 16% report that they do not believe in a god. It also found 73% of Americans who identify with the Tea Party report they believe in a personal god, 19% believe god is an impersonal force in the universe, and 6% report that they do not believe in a god. It also found 90% of white evangelical Protestants report they believe in a personal god, 8% believe god is an impersonal force in the universe, and less than 1% report that they do not believe in a god.

Organizations

 * American Atheists
 * Atheist Alliance International
 * The Clergy Project
 * Freedom From Religion Foundation
 * Freethinking Atheist and Agnostic Kinship
 * International League of non-religious and atheists
 * Internet Infidels
 * Military Association of Atheists & Freethinkers
 * Rational Response Squad
 * Recovering from Religion