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Idaho - State Membership Report (2010)

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
Church of Jesus Christ of Latter-day Saints Latter-day Saints Latter-day Saints (Mormonism) Family 1,067 409,265 261.08
Catholic Church Catholic Catholic Liturgical Family 108 123,400 78.72
Non-denominational Christian Churches Evangelical Protestant Other Groups Family 193 62,637 39.96
Assemblies of God, General Council of the Evangelical Protestant Pentecostal Family 89 22,183 14.15
United Methodist Church Mainline Protestant Methodist Family 61 21,315 13.60
Christian Churches and Churches of Christ Evangelical Protestant Restorationists Family 27 20,145 12.85
Salvation Army Evangelical Protestant Holiness Family 7 19,269 12.29
Church of the Nazarene Evangelical Protestant Holiness Family 53 17,967 11.46
Southern Baptist Convention Evangelical Protestant Baptist Family 95 13,037 8.32
Seventh-day Adventist Church Evangelical Protestant Adventist Family 60 10,047 6.41
Lutheran Church-Missouri Synod (LCMS) Evangelical Protestant Lutheran Family 43 9,863 6.29
Evangelical Lutheran Church in America Mainline Protestant Lutheran Family 35 8,337 5.32
Presbyterian Church (U.S.A.) Mainline Protestant Presbyterian/Reformed Family 50 7,510 4.79
American Baptist Churches in the U.S.A. Mainline Protestant Baptist Family 36 7,363 4.70
Episcopal Church Mainline Protestant Anglican/Episcopal Family 36 5,887 3.76
Association of Vineyard Churches Evangelical Protestant Pentecostal Family 6 3,793 2.42
Churches of Christ Evangelical Protestant Restorationists Family 43 3,267 2.08
Christian Church (Disciples of Christ) Mainline Protestant Restorationists Family 16 3,261 2.08
Evangelical Friends Church International Evangelical Protestant Friends/Brethren Family 15 2,296 1.46
Reformed Church in America Mainline Protestant Presbyterian/Reformed Family 3 2,069 1.32
Lutheran Congregations in Mission for Christ Evangelical Protestant Lutheran Family 8 1,931 1.23
Muslim Estimate Islam Islam Family 6 1,732 1.10
Free Methodist Church – USA Evangelical Protestant Holiness Family 9 1,614 1.03
International Church of the Foursquare Gospel Evangelical Protestant Pentecostal Family 25 1,606 1.02
Christian and Missionary Alliance Evangelical Protestant Holiness Family 8 1,573 1.00
Hinduism: Indian-American Hindu Temple Associations Hinduism Hinduism Family 1 1,562 1.00
Buddhism, Mahayana Buddhism Buddhism Family 8 1,514 0.97
Church of God (Anderson, Indiana) Evangelical Protestant Holiness Family 8 1,329 0.85
United Church of Christ Mainline Protestant Congregationalists (United Church of Christ) Family 11 1,255 0.80
Church of God in Christ, Mennonite Evangelical Protestant Mennonite/Amish Family 8 1,183 0.75
Evangelical Free Church of America Evangelical Protestant Methodist Family 8 1,095 0.70
Community of Christ Evangelical Protestant Latter-day Saints (Mormonism) Family 8 1,024 0.65
Baha'i Faith Other Other Groups Family 10 814 0.52
Wisconsin Evangelical Lutheran Synod Evangelical Protestant Lutheran Family 3 781 0.50
Pentecostal Church of God Evangelical Protestant Pentecostal Family 7 763 0.49
Church of the Brethren Evangelical Protestant Friends/Brethren Family 6 757 0.48
Unitarian Universalist Association Other Christians Liberal Family 6 755 0.48
Church of God (Cleveland, Tennessee) Evangelical Protestant Pentecostal Family 12 750 0.48
Reform Judaism Judaism Judaism Family 1 575 0.37
Church of God in Christ Black Protestant Pentecostal Family 3 570 0.36
Buddhism, Theravada Buddhism Buddhism Family 2 566 0.36
Mennonite Church, USA Evangelical Protestant Mennonite/Amish Family 5 556 0.35
Church of God of Prophecy Evangelical Protestant Pentecostal Family 11 473 0.30
Church of the Lutheran Brethren of America Evangelical Protestant Lutheran Family 1 435 0.28
Antiochian Orthodox Christian Archdiocese of North America Orthodox Eastern Liturgical (Orthodox) Family 4 363 0.23
American Baptist Association Evangelical Protestant Baptist Family 5 345 0.22
National Association of Free Will Baptists Evangelical Protestant Baptist Family 6 326 0.21
Conservative Congregational Christian Conference Evangelical Protestant Presbyterian/Reformed Family 3 309 0.20
North American Baptist Conference Evangelical Protestant Baptist Family 2 256 0.16
Christian Methodist Episcopal Church Black Protestant Methodist Family 2 252 0.16
Greek Orthodox Archdiocese of America Orthodox Eastern Liturgical (Orthodox) Family 2 215 0.14
Presbyterian Church in America Evangelical Protestant Presbyterian/Reformed Family 1 182 0.12
Wesleyan Church Evangelical Protestant Holiness Family 3 173 0.11
Orthodox Presbyterian Church Evangelical Protestant Presbyterian/Reformed Family 3 142 0.09
Serbian Orthodox Church in North and South America Orthodox Eastern Liturgical (Orthodox) Family 1 140 0.09
Fellowship of Evangelical Churches Evangelical Protestant Mennonite/Amish Family 1 111 0.07
Buddhism, Vajrayana Buddhism Buddhism Family 3 106 0.07
Russian Orthodox Church Outside of Russia, The Orthodox Eastern Liturgical (Orthodox) Family 1 100 0.06
Converge Worldwide Evangelical Protestant Baptist Family 1 90 0.06
International Churches of Christ Evangelical Protestant Baptist Family 1 90 0.06
Evangelical Covenant Church Evangelical Protestant Methodist Family 1 79 0.05
Orthodox Judaism Judaism Judaism Family 1 60 0.04
Independent Yearly Meetings of Friends Mainline Protestant Friends/Brethren Family 3 35 0.02
Christian Reformed Church in North America Evangelical Protestant Presbyterian/Reformed Family 1 33 0.02
Hinduism: Hindu Post Renaissance Hinduism Hinduism Family 2 31 0.02
Universal Fellowship of Metropolitan Community Churches Mainline Protestant Other Groups Family 1 24 0.02
International Pentecostal Holiness Church Evangelical Protestant Pentecostal Family 1 24 0.02
Church of the United Brethren in Christ, USA Evangelical Protestant Methodist Family 2 23 0.01
Open Bible Churches Evangelical Protestant Pentecostal Family 1 13 0.01
Federation of Zoroastrian Associations of North America Other Other Groups Family 0 9 0.01
Friends General Conference Mainline Protestant Friends/Brethren Family 1 0 0.00
Anglican Church in North America Evangelical Protestant Anglican/Episcopal Family 2
Association of Reformed Baptist Churches of America Evangelical Protestant Baptist Family 1
Korean Presbyterian Church in America Evangelical Protestant Presbyterian/Reformed Family 1
Bible Presbyterian Church (General Synod) Evangelical Protestant Presbyterian/Reformed Family 1
Calvary Chapel Evangelical Protestant Pentecostal Family 29
Church of Christ, Scientist Other Christians Christian Science Family 8
Unity Churches, Association of Other Christians Other Groups Family 3
General Conference of the Church of God (Seventh Day) Evangelical Protestant Adventist Family 1
Church of the Lutheran Confession Evangelical Protestant Lutheran Family 1
Communion of Reformed Evangelical Churches Evangelical Protestant Presbyterian/Reformed Family 4
Conservative Baptist Association of America (CBAmerica) Evangelical Protestant Baptist Family 10
Evangelical Methodist Church Evangelical Protestant Methodist Family 2
Grace Gospel Fellowship Evangelical Protestant Independent Fundamentalist Family 1
Independent Fundamental Churches of America Evangelical Protestant Independent Fundamentalist Family 10
Independent Baptist Fellowship International Evangelical Protestant Baptist Family 1
Jehovah's Witnesses Jehovah's Witnesses Adventist Family 43
New Apostolic Church USA Other Christians Other Groups Family 2
North American Lutheran Church Evangelical Protestant Lutheran Family 1
Christian Brethren (Plymouth Brethren) Evangelical Protestant Independent Fundamentalist Family 1
Reformed Baptist Church Evangelical Protestant Baptist Family 2
General Association of Regular Baptist Churches Evangelical Protestant Baptist Family 13
Tao Other Other Groups Family 1
United Pentecostal Church International Evangelical Protestant Pentecostal Family 15
United Reformed Churches in North America Evangelical Protestant Presbyterian/Reformed Family 3
           

Religious Traditions (1980 - 2020), Percent of Population


The population of this state was 1,567,582 in 2010. The adherent totals of the religious groups listed above (801,655) included 51.1% of the total population in 2010. 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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