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Hartford County, Connecticut - County Membership Report (2020)

Exact definitions of "congregations" and "adherents" vary by religious body. Congregations may be parishes, churches, synagogues, mosques, temples, or another site where a religious body has regularly scheduled worship services. Adherents generally are members, children who are not members, and others who are not members but are considered participants in the congregation.

[More information on the data sources]

Religious Bodies Tradition Family Congregations Adherents Adherence Rate
Catholic Church Catholic Catholic Liturgical Family 87 235,359 261.66
Non-denominational Christian Churches Evangelical Protestant Other Groups Family 116 40,432 44.95
Muslim Estimate Islam Islam Family 16 26,455 29.41
American Baptist Churches in the U.S.A. Mainline Protestant Baptist Family 34 20,493 22.78
United Church of Christ Mainline Protestant Congregationalists (United Church of Christ) Family 51 18,003 20.01
National Baptist Convention, USA, Inc. Black Protestant Baptist Family 7 17,100 19.01
United Methodist Church Mainline Protestant Methodist Family 29 10,015 11.13
Jehovah's Witnesses Jehovah's Witnesses Adventist Family 37 8,618 9.58
Assemblies of God, General Council of the Evangelical Protestant Pentecostal Family 24 7,685 8.54
Episcopal Church Mainline Protestant Anglican/Episcopal Family 29 7,471 8.31
Evangelical Lutheran Church in America Mainline Protestant Lutheran Family 20 5,495 6.11
Conservative Judaism Judaism Judaism Family 5 4,901 5.45
Reform Judaism Judaism Judaism Family 5 4,523 5.03
Church of Jesus Christ of Latter-day Saints Latter-day Saints Latter-day Saints (Mormonism) Family 9 4,059 4.51
Seventh-day Adventist Church Evangelical Protestant Adventist Family 16 3,757 4.18
Church of God (Cleveland, Tennessee) Evangelical Protestant Pentecostal Family 18 2,227 2.48
Lutheran Church-Missouri Synod (LCMS) Evangelical Protestant Lutheran Family 7 2,152 2.39
Orthodox Judaism Judaism Judaism Family 6 1,900 2.11
Hindu, Traditional Temples Hinduism Hinduism Family 2 1,731 1.92
Hindu Yoga and Meditation Hinduism 4 1,390 1.55
Evangelical Covenant Church Evangelical Protestant Methodist Family 5 1,352 1.50
Christian Methodist Episcopal Church Black Protestant Methodist Family 4 1,340 1.49
African Methodist Episcopal Church Black Protestant Methodist Family 3 1,328 1.48
Southern Baptist Convention Evangelical Protestant Baptist Family 16 1,327 1.48
African Methodist Episcopal Zion Church Black Protestant Methodist Family 6 1,312 1.46
Salvation Army Evangelical Protestant Holiness Family 7 1,268 1.41
Greek Orthodox Archdiocese of America Orthodox Eastern Liturgical (Orthodox) Family 3 1,260 1.40
National Baptist Convention of America International, Inc. Black Protestant Baptist Family 1 1,000 1.11
Unitarian Universalist Association Other Christians Liberal Family 4 898 1.00
National Missionary Baptist Convention of America Black Protestant Baptist Family 5 780 0.87
Church of God in Christ Black Protestant Pentecostal Family 6 760 0.84
Pentecostal Assemblies of the World Black Protestant Pentecostal Family 2 690 0.77
Churches of Christ Evangelical Protestant Restorationists Family 5 602 0.67
Church of the Nazarene Evangelical Protestant Holiness Family 3 516 0.57
Ukrainian Orthodox Church of the U.S.A. Orthodox Eastern Liturgical (Orthodox) Family 1 500 0.56
Presbyterian Church in America Evangelical Protestant Presbyterian/Reformed Family 3 421 0.47
Presbyterian Church (U.S.A.) Mainline Protestant Presbyterian/Reformed Family 2 420 0.47
Orthodox Church in America, The Orthodox Eastern Liturgical (Orthodox) Family 3 390 0.43
Buddhism, Vajrayana Buddhism Buddhism Family 1 350 0.39
International Churches of Christ Evangelical Protestant Baptist Family 1 340 0.38
Baha'i Faith Other Other Groups Family 3 323 0.36
Buddhism, Theravada Buddhism Buddhism Family 1 303 0.34
North American and Europe Region of the Knanaya Archdiocese of the Syriac Orthodox Church of Antioch Orthodox Eastern Liturgical (Orthodox) Family 1 280 0.31
Christian and Missionary Alliance Evangelical Protestant Holiness Family 2 277 0.31
Armenian Apostolic Church (Catholicosate of Etchmiadzin) Orthodox Eastern Liturgical (Orthodox) Family 2 270 0.30
Church of God (Anderson, Indiana) Evangelical Protestant Holiness Family 1 260 0.29
United Holy Church of America Black Protestant Pentecostal Family 1 250 0.28
Christian Reformed Church in North America Evangelical Protestant Presbyterian/Reformed Family 1 246 0.27
Christian Churches and Churches of Christ Evangelical Protestant Restorationists Family 2 238 0.26
National Association of Congregational Christian Churches Mainline Protestant Congregationalists (United Church of Christ) Family 3 200 0.22
Church of our Lord Jesus Christ of the Apostolic Faith, Inc. Black Protestant Pentecostal Family 1 180 0.20
Full Gospel Baptist Church Fellowship International Black Protestant Baptist Family 1 180 0.20
Russian Orthodox Church Outside of Russia, The Orthodox Eastern Liturgical (Orthodox) Family 2 175 0.19
Wisconsin Evangelical Lutheran Synod Evangelical Protestant Lutheran Family 1 163 0.18
Friends General Conference and Friends United Meeting, dually aligned meetings Mainline Protestant Friends/Brethren Family 1 144 0.16
Conservative Congregational Christian Conference Evangelical Protestant Presbyterian/Reformed Family 2 108 0.12
United House of Prayer Black Protestant 1 100 0.11
Wesleyan Church Evangelical Protestant Holiness Family 1 96 0.11
Full Gospel Christian Assemblies International Evangelical Protestant Pentecostal Family 1 90 0.10
Malankara (Indian) Orthodox Syrian Church Orthodox Eastern Liturgical (Orthodox) Family 1 83 0.09
Armenian Apostolic Church (Catholicosate of Cilicia) Orthodox Eastern Liturgical (Orthodox) Family 1 60 0.07
Congregational Christian Churches, Additional (not part of any national CCC body) Mainline Protestant Presbyterian/Reformed Family 1 59 0.07
Advent Christian Church Evangelical Protestant Adventist Family 2 54 0.06
Universal Fellowship of Metropolitan Community Churches Mainline Protestant Other Groups Family 1 46 0.05
Buddhism, Mahayana Buddhism Buddhism Family 1 29 0.03
Church of God in Christ, Mennonite Evangelical Protestant Mennonite/Amish Family 1 0 0.00
Chabad Judaism Judaism 3
House of God, Holy Church of the Living God, The Pillar and Ground of the Truth, House of Prayer for All People Black Protestant 1
ECO: A Covenant Order of Evangelical Presbyterians Evangelical Protestant Presbyterian/Reformed Family 1
The Local Churches Evangelical Protestant 1
United Church of God Other Christians Adventist Family 1
Anglican Church in North America Evangelical Protestant Anglican/Episcopal Family 2
Converge Worldwide Evangelical Protestant Baptist Family 14
Church of Christ, Scientist Other Christians Christian Science Family 1
Unity Churches, Association of Other Christians Other Groups Family 1
Church of God of Prophecy Evangelical Protestant Pentecostal Family 1
Church of the Lutheran Brethren of America Evangelical Protestant Lutheran Family 1
Community of Christ Evangelical Protestant Latter-day Saints (Mormonism) Family 1
Conservative Baptist Association of America (CBAmerica) Evangelical Protestant Baptist Family 1
Elim Fellowship Evangelical Protestant Pentecostal Family 2
Evangelical Free Church of America Evangelical Protestant Methodist Family 4
Evangelical Presbyterian Church (1981) Evangelical Protestant Presbyterian/Reformed Family 1
International Fellowship of Christian Assemblies Evangelical Protestant Pentecostal Family 1
Latvian Evangelical Lutheran Church in America Mainline Protestant Lutheran Family 1
National Spiritualist Association of Churches Other Spiritualist Family 1
Pentecostal Church of God Evangelical Protestant Pentecostal Family 1
Pentecostal Fire-Baptized Holiness Church Evangelical Protestant Pentecostal Family 1
Polish National Catholic Church of America Catholic Catholic Liturgical Family 2
Christian Brethren (Plymouth Brethren) Evangelical Protestant Independent Fundamentalist Family 5
General Association of Regular Baptist Churches Evangelical Protestant Baptist Family 1
American Sikh Council Other Other Groups Family 4
Union of Messianic Jewish Congregations Other Christians Other Groups Family 1
United Pentecostal Church International Evangelical Protestant Pentecostal Family 18
           

Religious Traditions (1980 - 2020), Percent of Population


The population of this county was 899,498 in 2020. The adherent totals of the religious groups listed above (444,834) included 49.5% of the total population in 2020. The adherence rate is the number of adherents of a given group per 1,000 people in the general population.

Note that data collection methods for religious bodies change over time, affecting the comparability of statistics. For further information, see the U.S. Religion Census website at https://www.usreligioncensus.org/.

The 2020 data were collected by the Association of Statisticians of American Religious Bodies (ASARB) and include data for 372 religious bodies or groups. Of these, the ASARB was able to gather data on congregations and adherents for 217 and on congregations only for 155.

[More information on the data sources]

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