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Connecticut

Religious Traditions, 2010

157,336 22,969 281,174 19,632 1,254,340 95,411 1,743,235
Evangelical Protestant Black Protestant Mainline Protestant Orthodox 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]

Reports


Religious Bodies Tradition Family Congregations Adherents Adherence Rate
International Fellowship of Christian Assemblies Evangelical Protestant
----
3 --- ---
Non-denominational Evangelical Protestant
----
276 72,863 20.4
Church of God (Seventh Day) Evangelical Protestant Adventist 2 --- ---
Jehovah's Witnesses Other Adventist 55 --- ---
Seventh-day Adventist Church Evangelical Protestant Adventist 55 8,749 2.4
Alliance of Baptists Mainline Protestant Baptist 1 --- ---
American Baptist Churches in the USA Mainline Protestant Baptist 122 40,672 11.4
Association of Reformed Baptist Churches of America Evangelical Protestant Baptist 1 --- ---
Christian Church (Disciples of Christ) Mainline Protestant Baptist 8 168 0.0
Christian Churches and Churches of Christ Evangelical Protestant Baptist 6 699 0.2
Churches of Christ Evangelical Protestant Baptist 23 2,618 0.7
Conservative Baptist Association of America Evangelical Protestant Baptist 14 --- ---
Converge Worldwide/Baptist General Conference Evangelical Protestant Baptist 17 5,010 1.4
Full Gospel Baptist Church Fellowship Black Protestant Baptist 3 --- ---
General Association of Regular Baptist Churches Evangelical Protestant Baptist 3 --- ---
International Churches of Christ Evangelical Protestant Baptist 3 621 0.2
National Baptist Convention of America, Inc. Black Protestant Baptist 3 2,774 0.8
National Baptist Convention, USA, Inc. Black Protestant Baptist 5 2,858 0.8
National Missionary Baptist Convention, Inc. Black Protestant Baptist 4 727 0.2
North American Baptist Conference Evangelical Protestant Baptist 1 --- ---
Progressive National Baptist Convention, Inc. Black Protestant Baptist 1 241 0.1
Reformed Baptist Churches Evangelical Protestant Baptist 2 --- ---
Seventh Day Baptist General Conference, USA and Canada Evangelical Protestant Baptist 3 58 0.0
Southern Baptist Convention Evangelical Protestant Baptist 52 7,271 2.0
Catholic Church Catholic Catholicism 399 1,252,936 350.6
Polish National Catholic Church Catholic Catholicism 11 --- ---
United Catholic Church, Inc. Catholic Catholicism 2 1,404 0.4
Church of Christ, Scientist Other Christian Science 18 --- ---
American Carpatho-Russian Orthodox Diocese Orthodox Eastern Liturgical (Orthodox) 4 1,003 0.3
Antiochian Orthodox Christian Archdiocese of North America, The Orthodox Eastern Liturgical (Orthodox) 2 1,061 0.3
Armenian Apostolic Church of America (Catholicosate of Cilicia) Orthodox Eastern Liturgical (Orthodox) 1 500 0.1
Armenian Church of North America (Catholicosate of Etchmiadzin) Orthodox Eastern Liturgical (Orthodox) 3 1,000 0.3
Coptic Orthodox Church Orthodox Eastern Liturgical (Orthodox) 1 390 0.1
Greek Orthodox Archdiocese of America Orthodox Eastern Liturgical (Orthodox) 17 11,727 3.3
Orthodox Church in America Orthodox Eastern Liturgical (Orthodox) 18 3,086 0.9
Russian Orthodox Church Outside of Russia Orthodox Eastern Liturgical (Orthodox) 4 340 0.1
Ukrainian Orthodox Church of the USA Orthodox Eastern Liturgical (Orthodox) 5 525 0.1
Anglican Church in North America Evangelical Protestant Episcopalianism/Anglicanism 7 --- ---
Episcopal Church Mainline Protestant Episcopalianism/Anglicanism 171 59,261 16.6
Apostolic Christian Church of America, Inc. Evangelical Protestant European Free-Church 1 575 0.2
Church of God in Christ, Mennonite Evangelical Protestant European Free-Church 1 0 ---
Friends General Conference and Friends United Meeting, dually aligned meetings* Mainline Protestant European Free-Church 10 628 0.2
Grace Brethren Churches, Fellowship of Mainline Protestant European Free-Church 1 --- ---
Unaffiliated Friends Meetings* Mainline Protestant European Free-Church 1 --- ---
Bible Fellowship Church Evangelical Protestant Holiness 1 43 0.0
Christian and Missionary Alliance, The Evangelical Protestant Holiness 19 2,601 0.7
Church of God (Anderson, Indiana) Evangelical Protestant Holiness 2 100 0.0
Church of the Nazarene Evangelical Protestant Holiness 20 2,007 0.6
Free Methodist Church of North America Evangelical Protestant Holiness 6 974 0.3
Salvation Army Evangelical Protestant Holiness 22 3,840 1.1
Wesleyan Church, The Evangelical Protestant Holiness 4 179 0.1
Christian Brethren Evangelical Protestant Ind. Fundamentalist 5 --- ---
Conservative Judaism Other Judaism 27 18,681 5.2
Orthodox Judaism Other Judaism 35 8,160 2.3
Reconstructionist Judaism Other Judaism 1 432 0.1
Reform Judaism Other Judaism 22 20,366 5.7
Union of Messianic Jewish Congregations Other Judaism 2 --- ---
Church of Jesus Christ of Latter-day Saints, The Other Latter-day Saints 32 14,990 4.2
Community of Christ Other Latter-day Saints 3 365 0.1
Unitarian Universalist Association of Congregations Other Liberal 19 3,928 1.1
Church of the Lutheran Brethren of America Evangelical Protestant Lutheran 2 599 0.2
Evangelical Lutheran Church in America Mainline Protestant Lutheran 73 24,736 6.9
Lutheran Church--Missouri Synod Evangelical Protestant Lutheran 37 9,785 2.7
Lutheran Congregations in Mission for Christ Evangelical Protestant Lutheran 2 131 0.0
Wisconsin Evangelical Lutheran Synod Evangelical Protestant Lutheran 2 243 0.1
African Methodist Episcopal Church Black Protestant Methodist/Pietist 14 4,474 1.3
African Methodist Episcopal Zion Church Black Protestant Methodist/Pietist 24 5,845 1.6
Christian Methodist Episcopal Church Black Protestant Methodist/Pietist 7 2,180 0.6
Evangelical Covenant Church, The Evangelical Protestant Methodist/Pietist 14 2,644 0.7
Evangelical Free Church of America, The Evangelical Protestant Methodist/Pietist 23 3,666 1.0
United Methodist Church, The Mainline Protestant Methodist/Pietist 124 47,627 13.3
Bahá'í Other Other Groups 8 1,014 0.3
Buddhism, Mahayana Other Other Groups 23 5,297 1.5
Buddhism, Theravada Other Other Groups 4 1,296 0.4
Buddhism, Vajrayana Other Other Groups 10 917 0.3
Hindu, Indian-American Hindu Temple Assoc. Other Other Groups 6 3,890 1.1
Hindu, Post Renaissance Other Other Groups 21 686 0.2
Hindu, Traditional Temples Other Other Groups 2 1,883 0.5
Jain Other Other Groups 2 --- ---
Metropolitan Community Churches, Universal Fellowship of Mainline Protestant Other Groups 2 127 0.0
Muslim Estimate Other Other Groups 36 13,418 3.8
New Apostolic Church of North America, National Organization of the Other Other Groups 4 --- ---
Sikh Other Other Groups 2 --- ---
Tao Other Other Groups 2 --- ---
Unity Churches, Association of Other Other Groups 7 --- ---
Zoroastrian Other Other Groups 0 88 0.0
Assemblies of God Evangelical Protestant Pentecostal 89 17,947 5.0
Calvary Chapel Fellowship Churches Evangelical Protestant Pentecostal 2 --- ---
Church of God (Cleveland, Tennessee) Evangelical Protestant Pentecostal 63 9,379 2.6
Church of God in Christ Black Protestant Pentecostal 27 3,870 1.1
Church of God of Prophecy Evangelical Protestant Pentecostal 8 1,149 0.3
Church of Our Lord Jesus Christ of the Apostolic Faith, Inc. Black Protestant Pentecostal 12 --- ---
Elim Fellowship Evangelical Protestant Pentecostal 4 --- ---
Foursquare Gospel, International Church of the Evangelical Protestant Pentecostal 6 292 0.1
International Pentecostal Church of Christ Evangelical Protestant Pentecostal 1 75 0.0
International Pentecostal Holiness Church Evangelical Protestant Pentecostal 1 152 0.0
Open Bible Standard Churches, Inc. Evangelical Protestant Pentecostal 1 29 0.0
Pentecostal Church of God Evangelical Protestant Pentecostal 3 327 0.1
Pentecostal Fire-Baptized Holiness Church Evangelical Protestant Pentecostal 5 --- ---
United Holy Church of America, Inc. Black Protestant Pentecostal 6 --- ---
United Pentecostal Church International Evangelical Protestant Pentecostal 27 --- ---
United Pentecostal Council of the Assemblies of God Evangelical Protestant Pentecostal 1 --- ---
Vineyard USA Evangelical Protestant Pentecostal 3 471 0.1
Christian Reformed Church in North America Evangelical Protestant Presbyterian-Reformed 1 245 0.1
Congregational Christian Churches, Additional (not part of any national CCC body) Mainline Protestant Presbyterian-Reformed 4 657 0.2
Conservative Congregational Christian Conference Evangelical Protestant Presbyterian-Reformed 8 573 0.2
Evangelical Presbyterian Church Evangelical Protestant Presbyterian-Reformed 1 184 0.1
International Council of Community Churches Mainline Protestant Presbyterian-Reformed 3 --- ---
Korean Presbyterian Church in America Evangelical Protestant Presbyterian-Reformed 4 --- ---
National Association of Congregational Christian Churches Mainline Protestant Presbyterian-Reformed 25 3,412 1.0
Orthodox Presbyterian Church, The Evangelical Protestant Presbyterian-Reformed 2 132 0.0
Presbyterian Church (U.S.A.) Mainline Protestant Presbyterian-Reformed 19 7,380 2.1
Presbyterian Church in America Evangelical Protestant Presbyterian-Reformed 12 1,105 0.3
United Church of Christ Mainline Protestant Presbyterian-Reformed 242 96,506 27.0
National Spiritualist Association of Churches Other Spiritualist 6 --- ---
Totals: 2,597 1,830,862  

The population of Connecticut was 3,574,097 in 2010; in 2000 it was 3,405,565. The total population changed 4.9%. The adherent totals of the religious groups listed above (1,830,862) included 51.2% 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 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.