<P> The most popular religion in the U.S. is Christianity , comprising the majority of the population ( 70.6 % of adults in 2014 ) . According to the Association of Statisticians of American Religious Bodies newsletter published March 2017 , based on data from 2010 , Christians were the largest religious population in all 3,143 counties in the country . Roughly 46.5 % of Americans are Protestants , 20.8 % are Catholics , 1.6 % are Mormons ( the name commonly used to refer to members of The Church of Jesus Christ of Latter - day Saints ) , and 1.7 % have affiliations with various other Christian denominations . Christianity was introduced during the period of European colonization . </P>
<P> The most popular religion in the U.S. is Christianity , comprising the majority of the population ( 70.6 % of adults in 2014 ) . According to the Association of Statisticians of American Religious Bodies newsletter published March 2017 , based on data from 2010 , Christians were the largest religious population in all 3,143 counties in the country . Roughly 46.5 % of Americans are Protestants , 20.8 % are Catholics , 1.6 % are Mormons ( the name commonly used to refer to members of The Church of Jesus Christ of Latter - day Saints ) , and 1.7 % have affiliations with various other Christian denominations . Christianity was introduced during the period of European colonization . </P>
what is the largest religion in the us
what is the largest religion in the us
Christianity
Christianity