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Roman Catholic Church--Rates of Adherence per 1,000 Population (2010)


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2010: Top Five States by Adherence Rate

  Congregations Adherents Adherence Rate
(per 1,000)
Massachusetts 641 2,940,199 449.05
Rhode Island 159 466,598 443.30
New Jersey 729 3,235,290 367.99
Connecticut 399 1,252,936 350.56
New York 1,630 6,286,916 324.43

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  • Notes

    2000 and 2010 data were collected by the Association of Statisticians of American Religious Bodies (ASARB) and include statistics for 236 religious groups, providing information on the number of their congregations and adherents within each state and county in the United States. Clifford Grammich, Kirk Hadaway, Richard Houseal, Dale E. Jones, Alexei Krindatch, Richie Stanley and Richard H. Taylor supervised the collection. These data originally appeared in 2010 U.S. Religion Census: Religious Congregations & Membership Study, published by ASARB.