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Idaho - State Membership Report (2000)

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 846 311,425 240.68
Catholic Church Catholic Catholic Liturgical Family 102 130,847 101.12
Assemblies of God, General Council of the Evangelical Protestant Pentecostal Family 88 18,745 14.49
United Methodist Church Mainline Protestant Methodist Family 63 17,683 13.67
Southern Baptist Convention Evangelical Protestant Baptist Family 66 15,456 11.94
Church of the Nazarene Evangelical Protestant Holiness Family 51 15,320 11.84
Lutheran Church-Missouri Synod (LCMS) Evangelical Protestant Lutheran Family 43 13,289 10.27
Evangelical Lutheran Church in America Mainline Protestant Lutheran Family 43 13,187 10.19
Presbyterian Church (U.S.A.) Mainline Protestant Presbyterian/Reformed Family 51 9,720 7.51
Seventh-day Adventist Church Evangelical Protestant Adventist Family 50 7,985 6.17
Christian Churches and Churches of Christ Evangelical Protestant Restorationists Family 25 7,880 6.09
American Baptist Churches in the U.S.A. Mainline Protestant Baptist Family 37 7,373 5.70
Episcopal Church Mainline Protestant Anglican/Episcopal Family 38 7,244 5.60
Independent, Non-Charismatic Churches Evangelical Protestant Other Groups Family 4 6,100 4.71
Christian Church (Disciples of Christ) Mainline Protestant Restorationists Family 16 4,009 3.10
Independent, Charismatic Churches Evangelical Protestant Pentecostal Family 3 3,800 2.94
Churches of Christ Evangelical Protestant Restorationists Family 43 3,399 2.63
Association of Vineyard Churches Evangelical Protestant Pentecostal Family 6 2,949 2.28
International Church of the Foursquare Gospel Evangelical Protestant Pentecostal Family 29 2,718 2.10
Friends (Quakers) Mainline Protestant Friends/Brethren Family 22 2,217 1.71
Free Methodist Church – USA Evangelical Protestant Holiness Family 8 2,042 1.58
Reformed Church in America Mainline Protestant Presbyterian/Reformed Family 3 1,895 1.46
United Church of Christ Mainline Protestant Congregationalists (United Church of Christ) Family 13 1,876 1.45
General Association of Regular Baptist Churches Evangelical Protestant Baptist Family 13 1,693 1.31
Conservative Baptist Association of America (CBAmerica) Evangelical Protestant Baptist Family 12 1,596 1.23
Salvation Army Evangelical Protestant Holiness Family 7 1,165 0.90
Jewish Congregations Judaism Judaism Family 2 1,050 0.81
Church of the Brethren Evangelical Protestant Friends/Brethren Family 7 922 0.71
Church of God (Cleveland, Tennessee) Evangelical Protestant Pentecostal Family 12 896 0.69
Evangelical Free Church of America Evangelical Protestant Methodist Family 8 845 0.65
Church of God (Anderson, Indiana) Evangelical Protestant Holiness Family 9 829 0.64
Pentecostal Church of God Evangelical Protestant Pentecostal Family 9 824 0.64
Church of God in Christ, Mennonite Evangelical Protestant Mennonite/Amish Family 6 822 0.64
Community of Christ Evangelical Protestant Latter-day Saints (Mormonism) Family 10 777 0.60
Wesleyan Church Evangelical Protestant Holiness Family 3 763 0.59
Christian and Missionary Alliance Evangelical Protestant Holiness Family 7 745 0.58
Conservative Congregational Christian Conference Evangelical Protestant Presbyterian/Reformed Family 4 745 0.58
Baha'i Faith Other Other Groups Family 10 690 0.53
Mennonite Church, USA Evangelical Protestant Mennonite/Amish Family 5 675 0.52
Unitarian Universalist Association Other Christians Liberal Family 6 653 0.50
Greek Orthodox Archdiocese of America Orthodox Eastern Liturgical (Orthodox) Family 2 459 0.35
Wisconsin Evangelical Lutheran Synod Evangelical Protestant Lutheran Family 4 435 0.34
United Reformed Churches in North America Evangelical Protestant Presbyterian/Reformed Family 1 367 0.28
Muslim Estimate Islam Islam Family 2 363 0.28
Antiochian Orthodox Christian Archdiocese of North America Orthodox Eastern Liturgical (Orthodox) Family 3 346 0.27
North American Baptist Conference Evangelical Protestant Baptist Family 2 329 0.25
National Association of Free Will Baptists Evangelical Protestant Baptist Family 6 322 0.25
Church of God of Prophecy Evangelical Protestant Pentecostal Family 9 303 0.23
American Baptist Association Evangelical Protestant Baptist Family 8 275 0.21
Converge Worldwide Evangelical Protestant Baptist Family 1 208 0.16
International Churches of Christ Evangelical Protestant Baptist Family 1 196 0.15
Mennonite; Other Groups Evangelical Protestant Mennonite/Amish Family 3 163 0.13
International Pentecostal Holiness Church Evangelical Protestant Pentecostal Family 6 144 0.11
Presbyterian Church in America Evangelical Protestant Presbyterian/Reformed Family 2 117 0.09
Orthodox Presbyterian Church Evangelical Protestant Presbyterian/Reformed Family 2 91 0.07
Christian Reformed Church in North America Evangelical Protestant Presbyterian/Reformed Family 1 79 0.06
Old Order Amish Mennonite Church Evangelical Protestant Mennonite/Amish Family 1 76 0.06
Evangelical Covenant Church Evangelical Protestant Methodist Family 1 58 0.04
Missionary Church, The Evangelical Protestant Holiness Family 1 43 0.03
Universal Fellowship of Metropolitan Community Churches Mainline Protestant Other Groups Family 1 39 0.03
Buddhists Buddhism Buddhism Family 1
Calvary Chapel Evangelical Protestant Pentecostal Family 14
Hindus Hinduism Hinduism Family 1
Reformed Baptist Church Evangelical Protestant Baptist Family 1
Russian Orthodox Church Outside of Russia, The Orthodox Eastern Liturgical (Orthodox) Family 1
           

Religious Traditions (1980 - 2020), Percent of Population


The population of this state was 1,293,953 in 2000. The adherent totals of the religious groups listed above (627,262) included 48.5% of the total population in 2000. 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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