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Lake County (Illinois)

Religious Traditions, 2010

84,501 7,824 36,967 211,380 4,610 33,822 324,358
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]

Reports


Religious Bodies Tradition Family Congregations Adherents Adherence Rate
Catholic Church Catholic Catholicism 30 131,478 298.56
Evangelical Lutheran Church in America Mainline Protestant Lutheran 18 12,663 28.76
United Methodist Church, The Mainline Protestant Methodist/Pietist 19 10,217 23.20
Presbyterian Church (U.S.A.) Mainline Protestant Presbyterian-Reformed 8 8,921 20.26
Episcopal Church Mainline Protestant Episcopalianism/Anglicanism 11 7,882 17.90
United Church of Christ Mainline Protestant Presbyterian-Reformed 14 6,926 15.73
Southern Baptist Convention Evangelical Protestant Baptist 15 4,973 11.29
Lutheran Church--Missouri Synod Evangelical Protestant Lutheran 7 4,590 10.42
Jewish Other Judaism 7 4,280 9.72
Wisconsin Evangelical Lutheran Synod Evangelical Protestant Lutheran 5 3,149 7.15
American Baptist Churches in the USA Mainline Protestant Baptist 3 2,432 5.52
Converge Worldwide/Baptist General Conference Evangelical Protestant Baptist 10 2,405 5.46
Assemblies of God Evangelical Protestant Pentecostal 8 2,338 5.31
Christian Catholic Church Other Other Groups 1 2,000 4.54
Christian Church (Disciples of Christ) Mainline Protestant Baptist 4 1,570 3.57
Evangelical Free Church of America, The Evangelical Protestant Methodist/Pietist 8 1,472 3.34
Church of Jesus Christ of Latter-day Saints, The Other Latter-day Saints 2 1,181 2.68
Free Methodist Church of North America Evangelical Protestant Holiness 1 750 1.70
Church of God (Cleveland, Tennessee) Evangelical Protestant Pentecostal 7 573 1.30
Christian Churches and Churches of Christ Evangelical Protestant Baptist 3 539 1.22
Missionary Church, The Evangelical Protestant Holiness 1 538 1.22
Churches of Christ Evangelical Protestant Baptist 7 508 1.15
Unitarian Universalist Association of Congregations Other Liberal 1 453 1.03
Church of the Nazarene Evangelical Protestant Holiness 3 317 0.72
Seventh-day Adventist Church Evangelical Protestant Adventist 2 282 0.64
Evangelical Congregational Church, The Evangelical Protestant Methodist/Pietist 1 149 0.34
Salvation Army Evangelical Protestant Holiness 1 123 0.28
National Association of Congregational Christian Churches Mainline Protestant Presbyterian-Reformed 1 114 0.26
Friends (Quakers) Mainline Protestant European Free-Church 1 100 0.23
Christian and Missionary Alliance, The Evangelical Protestant Holiness 2 93 0.21
Orthodox Presbyterian Church, The Evangelical Protestant Presbyterian-Reformed 1 55 0.12
Christian Brethren Evangelical Protestant Ind. Fundamentalist 2 50 0.11
Evangelical Covenant Church, The Evangelical Protestant Methodist/Pietist 1 50 0.11
Foursquare Gospel, International Church of the Evangelical Protestant Pentecostal 1 32 0.07
Armenian Apostolic Church of America (Catholicosate of Cilicia) Orthodox Eastern Liturgical (Orthodox) 1 29 0.07
Apostolic Catholic Assyrian Church of the East, North American Dioceses Orthodox Eastern Liturgical (Orthodox) 0 0 0.00
Black Baptists Estimate Evangelical Protestant Baptist 0 0 0.00
Church of Christ, Scientist Other Christian Science 0 0 0.00
Church of God of Prophecy Evangelical Protestant Pentecostal 0 0 0.00
Greek Orthodox Archdiocese of America Orthodox Eastern Liturgical (Orthodox) 0 0 0.00
Independent Fundamental Churches of America Evangelical Protestant Ind. Fundamentalist 0 0 0.00
National Association of Free Will Baptists Evangelical Protestant Baptist 0 0 0.00
North American Baptist Conference Evangelical Protestant Baptist 0 0 0.00
Pentecostal Church of God Evangelical Protestant Pentecostal 0 0 0.00
Presbyterian Church in America Evangelical Protestant Presbyterian-Reformed 0 0 0.00
Reformed Church in America Mainline Protestant Presbyterian-Reformed 0 0 0.00
Wesleyan Church, The Evangelical Protestant Holiness 0 0 0.00
Totals: 207 213,232  

The population of Lake County, Illinois was 440,372 in 1980. The adherent totals of the religious groups listed above (213,232) included 48.4% of the total population in 1980.

* 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 www.usreligioncensus.org for those who are interested in these trends.

Source

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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