<P> The Mother Mosque of America, built in 1934 in Cedar Rapids, Iowa, is asserted to be the oldest still - existing mosque building in the U.S. Also is asserted to be the oldest standing mosque in the U.S. is the Al - Sadiq Mosque, built in 1922 in the Bronzeville neighborhood of Chicago . </P> <P> Nation of Islam mosques, mostly of African Americans, are often in storefronts or former churches . </P> <P> It has been estimated that there were somewhat more than 100 mosques in the U.S. in 1970, but immigration of more than a million Muslims since then led to hundreds more being built . </P> <P> In 1994, the Islamic Center of Yuba City, in California, was destroyed by fire set in a hate - crime, and is one of two mosques destroyed by a hate - crime in U.S. history, (the second being in Joplin, Missouri in 2012). It had just been completed at cost of $1.8 million plus sweat equity of the Muslims of its rural community, including descendants of Pakistani who immigrated to the area c. 1902 . Its story, including its rebuilding, is told in David Washburn's 2012 documentary film An American Mosque . </P>

How many mosques are there in the united states