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Dubuque, IA 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
Catholic Church Catholic Catholic Liturgical Family 29 43,475 437.96
Evangelical Lutheran Church in America Mainline Protestant Lutheran Family 6 2,767 27.87
United Methodist Church Mainline Protestant Methodist Family 6 2,154 21.70
Lutheran Church-Missouri Synod (LCMS) Evangelical Protestant Lutheran Family 3 1,387 13.97
Non-denominational Christian Churches Evangelical Protestant Other Groups Family 7 1,120 11.28
Church of Jesus Christ of Latter-day Saints Latter-day Saints Latter-day Saints (Mormonism) Family 2 918 9.25
United Church of Christ Mainline Protestant Congregationalists (United Church of Christ) Family 4 788 7.94
Jehovah's Witnesses Jehovah's Witnesses Adventist Family 4 664 6.69
Presbyterian Church (U.S.A.) Mainline Protestant Presbyterian/Reformed Family 2 447 4.50
Christian Churches and Churches of Christ Evangelical Protestant Restorationists Family 1 274 2.76
Episcopal Church Mainline Protestant Anglican/Episcopal Family 1 174 1.75
Muslim Estimate Islam Islam Family 1 170 1.71
Assemblies of God, General Council of the Evangelical Protestant Pentecostal Family 1 152 1.53
Southern Baptist Convention Evangelical Protestant Baptist Family 2 111 1.12
Church of the Nazarene Evangelical Protestant Holiness Family 1 95 0.96
Reform Judaism Judaism Judaism Family 1 73 0.74
Seventh-day Adventist Church Evangelical Protestant Adventist Family 1 72 0.73
Unitarian Universalist Association Other Christians Liberal Family 1 62 0.62
American Baptist Churches in the U.S.A. Mainline Protestant Baptist Family 1 61 0.61
Greek Orthodox Archdiocese of America Orthodox Eastern Liturgical (Orthodox) Family 1 40 0.40
Salvation Army Evangelical Protestant Holiness Family 1 26 0.26
Friends General Conference Mainline Protestant Friends/Brethren Family 1 13 0.13
Baha'i Faith Other Other Groups Family 0 11 0.11
Christian Brethren (Plymouth Brethren) Evangelical Protestant Independent Fundamentalist Family 3
Evangelical Presbyterian Church (1981) Evangelical Protestant Presbyterian/Reformed Family 1
Evangelical Free Church of America Evangelical Protestant Methodist Family 3
United Pentecostal Church International Evangelical Protestant Pentecostal Family 1

Religious Traditions (1980 - 2020), Percent of Population

The population of this metro area was 99,266 in 2020. The adherent totals of the religious groups listed above (55,054) included 55.5% 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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