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Twin Falls County, Idaho - 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
Church of Jesus Christ of Latter-day Saints Latter-day Saints Latter-day Saints (Mormonism) Family 51 22,185 246.37
Catholic Church Catholic Catholic Liturgical Family 2 6,726 74.70
Non-denominational Christian Churches Evangelical Protestant Other Groups Family 8 3,140 34.87
Reformed Church in America Mainline Protestant Presbyterian/Reformed Family 1 1,588 17.64
Church of the Nazarene Evangelical Protestant Holiness Family 4 1,482 16.46
Lutheran Church-Missouri Synod (LCMS) Evangelical Protestant Lutheran Family 6 1,163 12.92
Jehovah's Witnesses Jehovah's Witnesses Adventist Family 6 1,094 12.15
Assemblies of God, General Council of the Evangelical Protestant Pentecostal Family 6 806 8.95
United Methodist Church Mainline Protestant Methodist Family 5 632 7.02
American Baptist Churches in the U.S.A. Mainline Protestant Baptist Family 5 579 6.43
Seventh-day Adventist Church Evangelical Protestant Adventist Family 3 545 6.05
Christian Churches and Churches of Christ Evangelical Protestant Restorationists Family 4 527 5.85
Church of God in Christ, Mennonite Evangelical Protestant Mennonite/Amish Family 2 488 5.42
Presbyterian Church (U.S.A.) Mainline Protestant Presbyterian/Reformed Family 3 277 3.08
Southern Baptist Convention Evangelical Protestant Baptist Family 4 264 2.93
Episcopal Church Mainline Protestant Anglican/Episcopal Family 2 222 2.47
Christian Church (Disciples of Christ) Mainline Protestant Restorationists Family 1 175 1.94
Full Gospel Christian Assemblies International Evangelical Protestant Pentecostal Family 1 160 1.78
Evangelical Lutheran Church in America Mainline Protestant Lutheran Family 1 145 1.61
Churches of Christ Evangelical Protestant Restorationists Family 3 140 1.55
Christian and Missionary Alliance Evangelical Protestant Holiness Family 1 137 1.52
National Association of Free Will Baptists Evangelical Protestant Baptist Family 2 79 0.88
Baha'i Faith Other Other Groups Family 0 62 0.69
Salvation Army Evangelical Protestant Holiness Family 1 62 0.69
United Reformed Churches in North America Evangelical Protestant Presbyterian/Reformed Family 1 57 0.63
Antiochian Orthodox Christian Archdiocese of North America Orthodox Eastern Liturgical (Orthodox) Family 1 51 0.57
Unitarian Universalist Association Other Christians Liberal Family 1 41 0.46
Mennonite Church, USA Evangelical Protestant Mennonite/Amish Family 1 38 0.42
Church of the Brethren Evangelical Protestant Friends/Brethren Family 1 22 0.24
Church of God of Prophecy Evangelical Protestant Pentecostal Family 1
Pentecostal Church of God Evangelical Protestant Pentecostal Family 1
General Association of Regular Baptist Churches Evangelical Protestant Baptist Family 1
United Pentecostal Church International Evangelical Protestant Pentecostal Family 1

Religious Traditions (1980 - 2020), Percent of Population

The population of this county was 90,046 in 2020. The adherent totals of the religious groups listed above (42,887) included 47.6% 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

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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