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Winnebago County (Wisconsin)

Religious Traditions, 2010

23,938 21,022 36,514 1,359 84,161
Evangelical Protestant Mainline Protestant Catholic 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
American Baptist Churches in the USA Mainline Protestant Baptist 1 145 0.87
Assemblies of God Evangelical Protestant Pentecostal 3 360 2.16
Bahá'í Other Other Groups 1 71 0.43
Buddhism, Mahayana Other Other Groups 2 55 0.33
Catholic Church Catholic Catholicism 11 36,514 218.65
Christian and Missionary Alliance, The Evangelical Protestant Holiness 1 134 0.80
Christian Churches and Churches of Christ Evangelical Protestant Baptist 1 84 0.50
Church of Christ, Scientist Other Christian Science 1 --- ---
Church of Jesus Christ of Latter-day Saints, The Other Latter-day Saints 3 925 5.54
Church of the Nazarene Evangelical Protestant Holiness 1 30 0.18
Churches of Christ Evangelical Protestant Baptist 1 100 0.60
Conservative Congregational Christian Conference Evangelical Protestant Presbyterian-Reformed 2 401 2.40
Converge Worldwide/Baptist General Conference Evangelical Protestant Baptist 1 960 5.75
Episcopal Church Mainline Protestant Episcopalianism/Anglicanism 2 1,150 6.89
Evangelical Free Church of America, The Evangelical Protestant Methodist/Pietist 1 85 0.51
Evangelical Lutheran Church in America Mainline Protestant Lutheran 18 12,866 77.04
Evangelical Lutheran Synod Evangelical Protestant Lutheran 1 42 0.25
Foursquare Gospel, International Church of the Evangelical Protestant Pentecostal 2 74 0.44
Friends General Conference* Mainline Protestant European Free-Church 2 17 0.10
General Association of Regular Baptist Churches Evangelical Protestant Baptist 1 --- ---
Grace Gospel Fellowship Evangelical Protestant Ind. Fundamentalist 1 --- ---
Jehovah's Witnesses Other Adventist 2 --- ---
Korean Presbyterian Church in America Evangelical Protestant Presbyterian-Reformed 1 --- ---
Lutheran Church--Missouri Synod Evangelical Protestant Lutheran 7 4,798 28.73
Lutheran Congregations in Mission for Christ Evangelical Protestant Lutheran 1 837 5.01
Muslim Estimate Other Other Groups 1 308 1.84
National Association of Congregational Christian Churches Mainline Protestant Presbyterian-Reformed 1 377 2.26
Non-denominational Evangelical Protestant
14 6,786 40.64
North American Lutheran Church Evangelical Protestant Lutheran 1 --- ---
Orthodox Presbyterian Church, The Evangelical Protestant Presbyterian-Reformed 1 99 0.59
Pentecostal Church of God Evangelical Protestant Pentecostal 1 109 0.65
Presbyterian Church (U.S.A.) Mainline Protestant Presbyterian-Reformed 5 1,855 11.11
Salvation Army Evangelical Protestant Holiness 1 202 1.21
Seventh-day Adventist Church Evangelical Protestant Adventist 1 297 1.78
Southern Baptist Convention Evangelical Protestant Baptist 2 71 0.43
United Church of Christ Mainline Protestant Presbyterian-Reformed 7 2,034 12.18
United Methodist Church, The Mainline Protestant Methodist/Pietist 7 2,578 15.44
United Pentecostal Church International Evangelical Protestant Pentecostal 4 --- ---
Wisconsin Evangelical Lutheran Synod Evangelical Protestant Lutheran 16 8,469 50.71
Totals: 130 82,833  

The population of Winnebago County, Wisconsin was 166,994 in 2010; in 2000 it was 156,763. The total population changed 6.5%. The adherent totals of the religious groups listed above (82,833) included 49.6% 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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