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St. Clair County (Michigan)

Religious Traditions, 2010

15,146 200 10,997 32,248 274 2,660 101,515
Evangelical Protestant Black Protestant Mainline Protestant Catholic Orthodox Other Unclaimed

Congregational adherents include all full members, their children, and others who regularly attend services. The 2010 reports contain incomplete counts of congregations and adherents belonging to the eight largest historically African-American denominations. These denominations are not included in the 2000 reports and are largely missing from the 1990 and 1980 reports.
[More information on the data sources]


Religious Bodies Tradition Family Congregations Adherents Adherence Rate
United Methodist Church, The Mainline Protestant Methodist/Pietist 19 3,878 23.79
Non-denominational Evangelical Protestant
15 4,097 25.13
Catholic Church Catholic Catholicism 11 32,248 197.79
Evangelical Lutheran Church in America Mainline Protestant Lutheran 8 3,414 20.94
Lutheran Church--Missouri Synod Evangelical Protestant Lutheran 8 3,958 24.28
Episcopal Church Mainline Protestant Episcopalianism/Anglicanism 6 1,153 7.07
United Church of Christ Mainline Protestant Presbyterian-Reformed 5 941 5.77
Wesleyan Church, The Evangelical Protestant Holiness 5 776 4.76
Missionary Church, The Evangelical Protestant Holiness 4 2,108 12.93
Presbyterian Church (U.S.A.) Mainline Protestant Presbyterian-Reformed 4 951 5.83
American Baptist Churches in the USA Mainline Protestant Baptist 3 368 2.26
Assemblies of God Evangelical Protestant Pentecostal 3 1,280 7.85
Community of Christ Other Latter-day Saints 3 501 3.07
Jehovah's Witnesses Other Adventist 3 --- ---
Church of God (Cleveland, Tennessee) Evangelical Protestant Pentecostal 2 393 2.41
Church of the Nazarene Evangelical Protestant Holiness 2 142 0.87
Churches of Christ Evangelical Protestant Baptist 2 180 1.10
Free Methodist Church of North America Evangelical Protestant Holiness 2 230 1.41
International Council of Community Churches Mainline Protestant Presbyterian-Reformed 2 --- ---
Southern Baptist Convention Evangelical Protestant Baptist 2 42 0.26
United Pentecostal Church International Evangelical Protestant Pentecostal 2 --- ---
Wisconsin Evangelical Lutheran Synod Evangelical Protestant Lutheran 2 418 2.56
African Methodist Episcopal Church Black Protestant Methodist/Pietist 1 79 0.48
Christian Churches and Churches of Christ Evangelical Protestant Baptist 1 146 0.90
Church of Christ, Scientist Other Christian Science 1 --- ---
Church of Jesus Christ of Latter-day Saints, The Other Latter-day Saints 1 530 3.25
Congregational Christian Churches, Additional (not part of any national CCC body) Mainline Protestant Presbyterian-Reformed 1 228 1.40
Evangelical Free Church of America, The Evangelical Protestant Methodist/Pietist 1 300 1.84
General Association of Regular Baptist Churches Evangelical Protestant Baptist 1 --- ---
Greek Orthodox Archdiocese of America Orthodox Eastern Liturgical (Orthodox) 1 49 0.30
Hindu, Traditional Temples Other Other Groups 1 40 0.25
Independent Fundamental Churches of America Evangelical Protestant Ind. Fundamentalist 1 --- ---
International Pentecostal Holiness Church Evangelical Protestant Pentecostal 1 58 0.36
Muslim Estimate Other Other Groups 1 1,563 9.59
National Association of Congregational Christian Churches Mainline Protestant Presbyterian-Reformed 1 64 0.39
Progressive National Baptist Convention, Inc. Black Protestant Baptist 1 121 0.74
Salvation Army Evangelical Protestant Holiness 1 895 5.49
Serbian Orthodox Church in North America Orthodox Eastern Liturgical (Orthodox) 1 225 1.38
Seventh-day Adventist Church Evangelical Protestant Adventist 1 123 0.75
Unity Churches, Association of Other Other Groups 1 --- ---
Bahá'í Other Other Groups 0 26 0.16
Totals: 131 61,525  

The population of St. Clair County, Michigan was 163,040 in 2010; in 2000 it was 164,235. The total population changed -0.7%. The adherent totals of the religious groups listed above (61,525) included 37.7% of the total population in 2010.

* In an effort to better match the ASARB standards for adherents, a few religious bodies changed the way their adherents were reported in 2010, including the Catholic Church, Amish groups, Friends groups, Jewish groups, the Church of Jesus Christ of Latter-day Saints, Non-denominational Christian Churches, and the United Methodist Church. This change does not affect any of the data in the newly released 2010 U.S. Religion Census: Religious Congregations & Membership Study. In fact, the data for these groups are now more comparable to that of other bodies than it was in previous decadal reports.

However, the change in methodology can distort assessments on growth or decline between 2000 and 2010 for each of these groups. County-level 2000 data using the new methodology are not readily available. ASARB staff has adjusted some 2000 county-level adherent statistics to allow for a more accurate picture on growth or decline. The revised maps and charts are now available on-line at for those who are interested in these trends.


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 the Association of Statisticians of American Religious Bodies (ASARB). [More information on the data collection]

The adherence rate provides the number of adherents of a particular group per 1,000 population. For example, in 2010 the Episcopal Church had an adherence rate of 7.6 in Autauga County, Alabama. This means that about 8 out of every 1,000 people in Autauga County were Episcopalian.

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