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Montana - State 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 195 112,389 103.66
Non-denominational Christian Churches Evangelical Protestant Other Groups Family 152 54,540 50.30
Church of Jesus Christ of Latter-day Saints Latter-day Saints Latter-day Saints (Mormonism) Family 127 50,552 46.63
Evangelical Lutheran Church in America Mainline Protestant Lutheran Family 119 26,883 24.79
Assemblies of God, General Council of the Evangelical Protestant Pentecostal Family 81 22,607 20.85
Southern Baptist Convention Evangelical Protestant Baptist Family 131 11,818 10.90
Lutheran Church-Missouri Synod (LCMS) Evangelical Protestant Lutheran Family 65 11,405 10.52
Jehovah's Witnesses Jehovah's Witnesses Adventist Family 51 10,350 9.55
United Methodist Church Mainline Protestant Methodist Family 105 9,827 9.06
International Church of the Foursquare Gospel Evangelical Protestant Pentecostal Family 30 7,020 6.47
Christian and Missionary Alliance Evangelical Protestant Holiness Family 35 5,166 4.76
Lehrerleut Hutterite Evangelical Protestant Communal Family 43 4,754 4.38
Seventh-day Adventist Church Evangelical Protestant Adventist Family 38 4,583 4.23
Episcopal Church Mainline Protestant Anglican/Episcopal Family 33 4,088 3.77
Presbyterian Church (U.S.A.) Mainline Protestant Presbyterian/Reformed Family 46 4,026 3.71
Lutheran Congregations in Mission for Christ Evangelical Protestant Lutheran Family 33 2,996 2.76
United Church of Christ Mainline Protestant Congregationalists (United Church of Christ) Family 25 2,835 2.61
Evangelical Church of North America Evangelical Protestant Holiness Family 21 2,816 2.60
Christian Churches and Churches of Christ Evangelical Protestant Restorationists Family 19 2,744 2.53
Churches of Christ Evangelical Protestant Restorationists Family 39 2,503 2.31
American Baptist Churches in the U.S.A. Mainline Protestant Baptist Family 25 1,994 1.84
Church of the Nazarene Evangelical Protestant Holiness Family 21 1,894 1.75
Buddhism, Vajrayana Buddhism Buddhism Family 6 1,689 1.56
Presbyterian Church in America Evangelical Protestant Presbyterian/Reformed Family 6 1,361 1.26
Wisconsin Evangelical Lutheran Synod Evangelical Protestant Lutheran Family 10 1,161 1.07
Wesleyan Church Evangelical Protestant Holiness Family 11 1,051 0.97
Christian Reformed Church in North America Evangelical Protestant Presbyterian/Reformed Family 5 982 0.91
Church of God (Anderson, Indiana) Evangelical Protestant Holiness Family 8 964 0.89
Amish Groups, undifferentiated Evangelical Protestant Mennonite/Amish Family 10 939 0.87
Association of Vineyard Churches Evangelical Protestant Pentecostal Family 5 882 0.81
Christian Church (Disciples of Christ) Mainline Protestant Restorationists Family 12 753 0.69
Dariusleut Hutterite Evangelical Protestant Communal Family 16 744 0.69
American Baptist Association Evangelical Protestant Baptist Family 6 722 0.67
Baha'i Faith Other Other Groups Family 7 694 0.64
Church of God (Cleveland, Tennessee) Evangelical Protestant Pentecostal Family 8 683 0.63
Conservative Congregational Christian Conference Evangelical Protestant Presbyterian/Reformed Family 3 483 0.45
Evangelical Covenant Church Evangelical Protestant Methodist Family 2 447 0.41
Association of Free Lutheran Congregations Evangelical Protestant Lutheran Family 5 443 0.41
Unaffiliated Conservative Mennonite Evangelical Protestant Mennonite/Amish Family 4 413 0.38
Unitarian Universalist Association Other Christians Liberal Family 5 413 0.38
Salvation Army Evangelical Protestant Holiness Family 6 388 0.36
Hindu Yoga and Meditation Hinduism 3 380 0.35
Orthodox Church in America, The Orthodox Eastern Liturgical (Orthodox) Family 4 370 0.34
African Methodist Episcopal Church Black Protestant Methodist Family 3 358 0.33
Greek Orthodox Archdiocese of America Orthodox Eastern Liturgical (Orthodox) Family 2 315 0.29
Buddhism, Theravada Buddhism Buddhism Family 1 289 0.27
Mennonite Church, USA Evangelical Protestant Mennonite/Amish Family 5 285 0.26
Reform Judaism Judaism Judaism Family 1 273 0.25
Serbian Orthodox Church in North and South America Orthodox Eastern Liturgical (Orthodox) Family 2 264 0.24
Church of God in Christ, Mennonite Evangelical Protestant Mennonite/Amish Family 2 235 0.22
Church of God in Christ Black Protestant Pentecostal Family 2 226 0.21
Open Bible Churches Evangelical Protestant Pentecostal Family 4 210 0.19
Muslim Estimate Islam Islam Family 3 200 0.18
Mennonite Brethren Churches, U.S. Conference of Evangelical Protestant Mennonite/Amish Family 3 198 0.18
Independent Yearly Meetings of Friends Mainline Protestant Friends/Brethren Family 13 133 0.12
Full Gospel Christian Assemblies International Evangelical Protestant Pentecostal Family 2 130 0.12
National Missionary Baptist Convention of America Black Protestant Baptist Family 2 126 0.12
United Reformed Churches in North America Evangelical Protestant Presbyterian/Reformed Family 2 120 0.11
Mennonite Christian Fellowship Evangelical Protestant Mennonite/Amish Family 1 95 0.09
International Churches of Christ Evangelical Protestant Baptist Family 2 77 0.07
National Association of Congregational Christian Churches Mainline Protestant Congregationalists (United Church of Christ) Family 1 74 0.07
Biblical Mennonite Alliance Evangelical Protestant Mennonite/Amish Family 1 73 0.07
Reformed Church in America Mainline Protestant Presbyterian/Reformed Family 1 65 0.06
Western Conservative Mennonite Fellowship Evangelical Protestant Mennonite/Amish Family 1 60 0.06
Buddhism, Mahayana Buddhism Buddhism Family 2 54 0.05
National Association of Free Will Baptists Evangelical Protestant Baptist Family 1 34 0.03
Old German Baptist Brethren Church, New Conference Evangelical Protestant Friends/Brethren Family 1 30 0.03
Church of the Brethren Evangelical Protestant Friends/Brethren Family 1 22 0.02
Free Methodist Church – USA Evangelical Protestant Holiness Family 1 15 0.01
General Conference of the Church of God (Seventh Day) Evangelical Protestant Adventist Family 1
Church of God, Mountain Assembly, Inc. Evangelical Protestant Pentecostal Family 1
Berean Fellowship of Churches Evangelical Protestant Independent Fundamentalist Family 1
Christadelphians Other Christians Other Groups Family 1
Laestadian Lutheran Church Evangelical Protestant 1
United Episcopal Church of North America Mainline Protestant 1
Grace Communion International Evangelical Protestant 2
Netherlands Reformed Congregations Evangelical Protestant Presbyterian/Reformed Family 1
North American Lutheran Church Evangelical Protestant Lutheran Family 2
Sovereign Grace Churches Evangelical Protestant Baptist Family 1
The Church of God Evangelical Protestant 1
The Local Churches Evangelical Protestant 4
Unification Church Other Other Groups Family 1
Old Apostolic Lutheran Church of America Evangelical Protestant 1
United Church of God Other Christians Adventist Family 4
Chabad Judaism Judaism 3
Remnant: Charity Ministries and related Evangelical Protestant Mennonite/Amish Family 1
Anglican Church in North America Evangelical Protestant Anglican/Episcopal Family 1
Converge Worldwide Evangelical Protestant Baptist Family 3
Bible Presbyterian Church (General Synod) Evangelical Protestant Presbyterian/Reformed Family 1
Calvary Chapel Evangelical Protestant Pentecostal Family 2
Church of Christ, Scientist Other Christians Christian Science Family 3
Unity Churches, Association of Other Christians Other Groups Family 4
Church of God of Prophecy Evangelical Protestant Pentecostal Family 3
Church of the Lutheran Brethren of America Evangelical Protestant Lutheran Family 4
Communion of Reformed Evangelical Churches Evangelical Protestant Presbyterian/Reformed Family 3
Community of Christ Evangelical Protestant Latter-day Saints (Mormonism) Family 3
Conservative Baptist Association of America (CBAmerica) Evangelical Protestant Baptist Family 3
Evangelical Free Church of America Evangelical Protestant Methodist Family 9
Fellowship of Evangelical Bible Churches Evangelical Protestant Mennonite/Amish Family 2
Evangelical Presbyterian Church (1981) Evangelical Protestant Presbyterian/Reformed Family 3
American Association of Lutheran Churches Evangelical Protestant Lutheran Family 2
New Testament Association of Independent Baptist Churches Evangelical Protestant Baptist Family 6
New Apostolic Church USA Other Christians Other Groups Family 5
North American Baptist Conference Evangelical Protestant Baptist Family 3
Pentecostal Church of God Evangelical Protestant Pentecostal Family 10
Christian Brethren (Plymouth Brethren) Evangelical Protestant Independent Fundamentalist Family 4
General Association of Regular Baptist Churches Evangelical Protestant Baptist Family 10
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 state was 1,084,225 in 2020. The adherent totals of the religious groups listed above (377,713) included 34.8% 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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