Muslim Population in the United States Posted on January 1, 2016August 30, 2018 by In My Anguish The Muslim population of the United States surpassed 3.5 million in 2015, according to demographic projections compiled by the Pew Research Center. In percentage terms, Muslims currently comprise roughly 1% (yes that is ONE) of the US population. Share this:RedditFacebookTwitterPinterestTumblrLike this:Like Loading... Related