Adams County, Iowa has 13 churches in the Churches List directory, 0 of them verified and 2 with a published website. The 2020 US Religion Census counted 11 congregations and 1,446 adherents across 9 religious bodies in the county. That is 390 adherents per 1,000 residents of its 3,707 people.
| Religious body | Congregations | Adherents | Per 1,000 pop. |
|---|---|---|---|
| United Methodist Church | 4 | 616 | 166.2 |
| Evangelical Lutheran Church in America | 1 | 290 | 78.2 |
| Catholic Church | 1 | 221 | 59.6 |
| Lutheran Church--Missouri Synod | 1 | 131 | 35.3 |
| Presbyterian Church (U.S.A.) | 1 | 119 | 32.1 |
| Christian Church (Disciples of Christ) | 1 | 60 | 16.2 |
| Church of the Brethren | 1 | 8 | 2.2 |
| Baha'i Faith USA | 0 | 1 | 0.3 |
Source: 2020 US Religion Census (Association of Statisticians of American Religious Bodies). Per-1,000 rates divide reported adherents by the county's 2020 Census population (3,707). Largest 12 bodies by adherents shown.
Directory traditions here: Methodist (4) · Catholic (2) · Baptist Churches (1) · United Church of Christ (1) · Lutheran (1) · United Methodist (1) · Christian (1) · Brethren (1) · Presbyterian (1)
Directory listings are mapped to Adams County through the US Census Bureau's 2020 ZCTA-to-county relationship file: each ZIP Code Tabulation Area is assigned to the county holding the largest share of its land area, so a small number of churches in ZIP codes that straddle county lines may be attributed to a neighboring county. Congregation and adherent counts come from the 2020 US Religion Census and are reported by the religious bodies themselves. Population is the county's April 2020 decennial-census base from the US Census Bureau's population-estimates program; per-1,000 adherence rates divide reported adherents by that figure. Corrections to any listing go through the corrections page.