Greene County, Iowa has 29 churches in the Churches List directory, 0 of them verified and 3 with a published website. The 2020 US Religion Census counted 26 congregations and 4,533 adherents across 14 religious bodies in the county. That is 517 adherents per 1,000 residents of its 8,764 people.
| Religious body | Congregations | Adherents | Per 1,000 pop. |
|---|---|---|---|
| United Methodist Church | 8 | 1,409 | 160.8 |
| Catholic Church | 3 | 1,288 | 147.0 |
| Lutheran Church--Missouri Synod | 1 | 425 | 48.5 |
| Non-denominational Christian Churches | 1 | 300 | 34.2 |
| American Baptist Churches in the USA | 2 | 265 | 30.2 |
| Presbyterian Church (U.S.A.) | 3 | 246 | 28.1 |
| Assemblies of God | 1 | 190 | 21.7 |
| Jehovah's Witnesses | 1 | 114 | 13.0 |
| Open Bible Churches | 1 | 104 | 11.9 |
| Christian Churches and Churches of Christ | 1 | 91 | 10.4 |
| Evangelical Lutheran Church in America | 1 | 51 | 5.8 |
| Churches of Christ | 1 | 50 | 5.7 |
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 (8,764). Largest 12 bodies by adherents shown.
Directory traditions here: Methodist (6) · United Methodist (5) · Catholic (4) · Lutheran (2) · Presbyterian (2) · Evangelical (2) · Baptist Churches (2) · Church of Christ (2) · Church of Jesus Christ Of Latter Day Saints (1) · Bible (1)
Directory listings are mapped to Greene 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.