Hartford Institute for Religion Research. Internet Sacred Text Archive Home. The Association of Religion Data Archives - Religion Statistics and Data - ARDA. Geographic Distribution of Religious Centers in the U.S. These maps were generated from the listings in the Pluralism Project's Directory of Religious Centers and reflect the distributions as of August 2006. Click on the thumbnail to view a printable, full-size map in a new window. Interfaith: 604 Centers Jainism: 94 Centers Sikhism: 244 Centers Hinduism: 714 Centers Buddhism: 2150 Centers Islam: 1583 Centers.