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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 32 253,000 392.64
Evangelical Lutheran Church in America Mainline Protestant Lutheran 21 16,259 25.23
Evangelical Free Church of America, The Evangelical Protestant Methodist/Pietist 19 4,381 6.80
United Methodist Church, The Mainline Protestant Methodist/Pietist 19 8,897 13.81
Southern Baptist Convention Evangelical Protestant Baptist 17 2,849 4.42
Jewish Other Judaism 15 25,000 38.80
Assemblies of God Evangelical Protestant Pentecostal 13 2,608 4.05
United Church of Christ Mainline Protestant Presbyterian-Reformed 12 4,428 6.87
Episcopal Church Mainline Protestant Episcopalianism/Anglicanism 11 5,523 8.57
Lutheran Church--Missouri Synod Evangelical Protestant Lutheran 10 5,204 8.08
Church of Jesus Christ of Latter-day Saints, The Other Latter-day Saints 9 2,307 3.58
Presbyterian Church (U.S.A.) Mainline Protestant Presbyterian-Reformed 9 10,392 16.13
Converge Worldwide/Baptist General Conference Evangelical Protestant Baptist 8 2,342 3.63
Churches of Christ Evangelical Protestant Baptist 7 572 0.89
Wisconsin Evangelical Lutheran Synod Evangelical Protestant Lutheran 7 2,771 4.30
Christian Churches and Churches of Christ Evangelical Protestant Baptist 6 1,247 1.94
American Baptist Churches in the USA Mainline Protestant Baptist 5 1,042 1.62
Church of God (Cleveland, Tennessee) Evangelical Protestant Pentecostal 5 907 1.41
Bahá'í Other Other Groups 4 311 0.48
Church of the Nazarene Evangelical Protestant Holiness 4 375 0.58
Foursquare Gospel, International Church of the Evangelical Protestant Pentecostal 4 271 0.42
Muslim Estimate Other Other Groups 4 2,727 4.23
Buddhists Other Other Groups 3 --- ---
New Testament Association of Independent Baptist Churches and other Fundamental Bapti Evangelical Protestant Baptist 3 880 1.37
Seventh-day Adventist Church Evangelical Protestant Adventist 3 594 0.92
Christian Church (Disciples of Christ) Mainline Protestant Baptist 2 728 1.13
Church of God of Prophecy Evangelical Protestant Pentecostal 2 110 0.17
Evangelical Covenant Church, The Evangelical Protestant Methodist/Pietist 2 412 0.64
Greek Orthodox Archdiocese of America Orthodox Eastern Liturgical (Orthodox) 2 603 0.94
Missionary Church, The Evangelical Protestant Holiness 2 1,741 2.70
Presbyterian Church in America Evangelical Protestant Presbyterian-Reformed 2 291 0.45
American Baptist Association, The Evangelical Protestant Baptist 1 65 0.10
Armenian Apostolic Church of America (Catholicosate of Cilicia) Orthodox Eastern Liturgical (Orthodox) 1 105 0.16
Armenian Church of North America (Catholicosate of Etchmiadzin) Orthodox Eastern Liturgical (Orthodox) 1 300 0.47
Baptist Missionary Association of America Evangelical Protestant Baptist 1 107 0.17
Calvary Chapel Fellowship Churches Evangelical Protestant Pentecostal 1 --- ---
Christian and Missionary Alliance, The Evangelical Protestant Holiness 1 0 0.00
Church of God (Anderson, Indiana) Evangelical Protestant Holiness 1 20 0.03
Community of Christ Other Latter-day Saints 1 119 0.18
Conservative Congregational Christian Conference Evangelical Protestant Presbyterian-Reformed 1 192 0.30
Free Methodist Church of North America Evangelical Protestant Holiness 1 300 0.47
Friends (Quakers) Mainline Protestant European Free-Church 1 72 0.11
General Association of Regular Baptist Churches Evangelical Protestant Baptist 1 243 0.38
Independent, Charismatic Churches Evangelical Protestant Pentecostal 1 400 0.62
Independent, Non-Charismatic Churches Evangelical Protestant
----
1 18,000 27.93
Mennonite Church USA Evangelical Protestant European Free-Church 1 50 0.08
Metropolitan Community Churches, Universal Fellowship of Mainline Protestant Other Groups 1 46 0.07
National Association of Congregational Christian Churches Mainline Protestant Presbyterian-Reformed 1 718 1.11
North American Baptist Conference Evangelical Protestant Baptist 1 52 0.08
Orthodox Presbyterian Church, The Evangelical Protestant Presbyterian-Reformed 1 44 0.07
Pentecostal Church of God Evangelical Protestant Pentecostal 1 84 0.13
Salvation Army Evangelical Protestant Holiness 1 158 0.25
Serbian Orthodox Church in North America Orthodox Eastern Liturgical (Orthodox) 1 500 0.78
Sikh Other Other Groups 1 --- ---
Southwide Baptist Fellowship Evangelical Protestant Baptist 1 --- ---
Unitarian Universalist Association of Congregations Other Liberal 1 512 0.79
Vineyard USA Evangelical Protestant Pentecostal 1 475 0.74
Totals: 288 381,334  

The population of Lake County, Illinois was 644,356 in 2000; in 1990 it was 516,418. The total population changed 24.8%. The adherent totals of the religious groups listed above (381,334) included 59.2% of the total population in 2000.

* 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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