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Dallas County, Iowa - 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
Evangelical Lutheran Church in America Mainline Protestant Lutheran Family 5 20,199 202.64
Catholic Church Catholic Catholic Liturgical Family 4 8,981 90.10
Muslim Estimate Islam Islam Family 2 3,174 31.84
United Methodist Church Mainline Protestant Methodist Family 14 3,108 31.18
Non-denominational Christian Churches Evangelical Protestant Other Groups Family 10 3,020 30.30
Church of Jesus Christ of Latter-day Saints Latter-day Saints Latter-day Saints (Mormonism) Family 3 1,377 13.81
Lutheran Church-Missouri Synod (LCMS) Evangelical Protestant Lutheran Family 5 1,076 10.79
Hindu, Traditional Temples Hinduism Hinduism Family 1 1,000 10.03
Southern Baptist Convention Evangelical Protestant Baptist Family 5 697 6.99
Presbyterian Church (U.S.A.) Mainline Protestant Presbyterian/Reformed Family 4 640 6.42
Lutheran Congregations in Mission for Christ Evangelical Protestant Lutheran Family 1 596 5.98
Christian Church (Disciples of Christ) Mainline Protestant Restorationists Family 5 550 5.52
Assemblies of God, General Council of the Evangelical Protestant Pentecostal Family 4 540 5.42
Reformed Church in America Mainline Protestant Presbyterian/Reformed Family 1 440 4.41
Church of the Brethren Evangelical Protestant Friends/Brethren Family 2 246 2.47
Jehovah's Witnesses Jehovah's Witnesses Adventist Family 1 194 1.95
Dunkard Brethren Church Evangelical Protestant Friends/Brethren Family 1 160 1.61
Wisconsin Evangelical Lutheran Synod Evangelical Protestant Lutheran Family 1 157 1.58
Hindu Yoga and Meditation Hinduism 1 119 1.19
Christian and Missionary Alliance Evangelical Protestant Holiness Family 1 90 0.90
Conservative Yearly Meetings of Friends Evangelical Protestant Friends/Brethren Family 1 78 0.78
Churches of Christ Evangelical Protestant Restorationists Family 1 75 0.75
Episcopal Church Mainline Protestant Anglican/Episcopal Family 1 67 0.67
Friends United Meeting Mainline Protestant Friends/Brethren Family 1 66 0.66
Old Order Yorker River Brethren Evangelical Protestant Friends/Brethren Family 1 64 0.64
Christian Churches and Churches of Christ Evangelical Protestant Restorationists Family 1 45 0.45
Baha'i Faith Other Other Groups Family 0 11 0.11
Fellowship of Grace Brethren Churches Mainline Protestant Friends/Brethren Family 2
Evangelical Free Church of America Evangelical Protestant Methodist Family 3
Christian Brethren (Plymouth Brethren) Evangelical Protestant Independent Fundamentalist Family 1
General Association of Regular Baptist Churches Evangelical Protestant Baptist Family 4
United Pentecostal Church International Evangelical Protestant Pentecostal Family 3

Religious Traditions (1980 - 2020), Percent of Population

The population of this county was 99,678 in 2020. The adherent totals of the religious groups listed above (46,770) included 46.9% 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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