Croatian Americans are closely related to other European Americans, and are closest to other Slavic Americans. Most Croatian Americans are of the Roman Catholic faith, but other Christian faiths are commonly followed. The places with the most Croatian Americans are Chicago, Cleveland, New York City, Southern California, and Pittsburgh. Pittsburgh is the home of the Croatian Fraternal Union, which was made to help Croatian Americans in the area. Croatia's "State Office for the Croats Abroad" estimated that there are up to 1.2 million Croats and their descendants living in the United States.