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Idaho Falls, ID Metro Area - Metro Area 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 213 92,507 587.61
Catholic Church Catholic Catholic Liturgical Family 5 8,163 51.85
Southern Baptist Convention Evangelical Protestant Baptist Family 7 2,194 13.94
Non-denominational Christian Churches Evangelical Protestant Other Groups Family 6 1,850 11.75
Jehovah's Witnesses Jehovah's Witnesses Adventist Family 3 948 6.02
United Methodist Church Mainline Protestant Methodist Family 2 936 5.95
Lutheran Church-Missouri Synod (LCMS) Evangelical Protestant Lutheran Family 3 723 4.59
Church of the Nazarene Evangelical Protestant Holiness Family 1 570 3.62
Presbyterian Church (U.S.A.) Mainline Protestant Presbyterian/Reformed Family 3 523 3.32
Church of God in Christ Black Protestant Pentecostal Family 3 366 2.32
Lutheran Congregations in Mission for Christ Evangelical Protestant Lutheran Family 1 338 2.15
Seventh-day Adventist Church Evangelical Protestant Adventist Family 2 256 1.63
International Church of the Foursquare Gospel Evangelical Protestant Pentecostal Family 2 250 1.59
Assemblies of God, General Council of the Evangelical Protestant Pentecostal Family 1 165 1.05
Episcopal Church Mainline Protestant Anglican/Episcopal Family 2 152 0.97
Christian and Missionary Alliance Evangelical Protestant Holiness Family 1 123 0.78
Association of Vineyard Churches Evangelical Protestant Pentecostal Family 1 100 0.64
Evangelical Lutheran Church in America Mainline Protestant Lutheran Family 1 87 0.55
Churches of Christ Evangelical Protestant Restorationists Family 1 75 0.48
Unitarian Universalist Association Other Christians Liberal Family 1 71 0.45
American Baptist Churches in the U.S.A. Mainline Protestant Baptist Family 2 62 0.39
Salvation Army Evangelical Protestant Holiness Family 1 58 0.37
Baha'i Faith Other Other Groups Family 1 40 0.25
Christian Church (Disciples of Christ) Mainline Protestant Restorationists Family 1 0 0.00
New Apostolic Church USA Other Christians Other Groups Family 1
North American Baptist Conference Evangelical Protestant Baptist Family 1
Orthodox Presbyterian Church Evangelical Protestant Presbyterian/Reformed Family 1
Church of God (Cleveland, Tennessee) Evangelical Protestant Pentecostal Family 1
North American Lutheran Church Evangelical Protestant Lutheran Family 1
United Pentecostal Church International Evangelical Protestant Pentecostal Family 2
Calvary Chapel Evangelical Protestant Pentecostal Family 1

Religious Traditions (1980 - 2020), Percent of Population

The population of this metro area was 157,429 in 2020. The adherent totals of the religious groups listed above (110,557) included 70.2% 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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