Islam is the third largest religion in the United States (1%), behind Christianity and Judaism, and equaling the shares of Buddhism and Hinduism. A 2017 study estimated that 1.1% of the population of the United States are Muslim. In 2017, twenty states, mostly in the South and Midwest, reported Islam to be the largest non-Christian religion. In 2020, the U.S. Religion Census found there to be 4.45 million Muslim Americans, or roughly 1.3% of the population.