Religion

"The 2010 U.S. Religion Census: Religious Congregations & Membership Study (RCMS) is a county-by-county enumeration of religious bodies in the US...Since 1990, the Association of Statisticians of American Religious Bodies (ASARB) has sponsored the studies."

Numerous publications based on the American Religious Identification Surveys from 1990, 2001, 2008, and 2013

"Data included in the ARDA are submitted by the foremost religion scholars and research centers in the world. Currently housed in the Social Science Research Institute, the College of Liberal Arts, and the Department of Sociology at the Pennsylvania State University, the ARDA is funded by the Lilly Endowment, the John Templeton Foundation and the Pennsylvania State University."

From the Pew Forum on Religion and Public Life, this is based on survey data of 35,000 American adults. Easy access is provided to information on Affilations, Maps, Portraits, and Comparisons.

Succinct overviews of World Religions along with a breakdown of the various religious adherents per country.

From Duke University, "The National Congregations Study (NCS) is an ongoing national survey effort to gather information about the basic characteristics of America's congregations."

"The North American Jewish Data Bank is the central repository of social scientific studies of North American Jewry."

"PRRI’s mission is to help journalists, opinion leaders, scholars, clergy, and the general public better understand debates on public policy issues and the role of religion and values in American public life..." See the Data Vault.