Harrison County, Ohio has 52 churches in the Churches List directory, 0 of them verified and 9 with a published website. The 2020 US Religion Census counted 49 congregations and 3,921 adherents across 17 religious bodies in the county. That is 271 adherents per 1,000 residents of its 14,485 people.
| Religious body | Congregations | Adherents | Per 1,000 pop. |
|---|---|---|---|
| United Methodist Church | 16 | 1,363 | 94.1 |
| Amish Groups, undifferentiated | 4 | 429 | 29.6 |
| Church of God (Cleveland, Tennessee) | 2 | 415 | 28.7 |
| Presbyterian Church (U.S.A.) | 9 | 357 | 24.6 |
| Catholic Church | 3 | 341 | 23.5 |
| Christian Churches and Churches of Christ | 2 | 307 | 21.2 |
| Jehovah's Witnesses | 1 | 192 | 13.3 |
| Churches of Christ | 3 | 158 | 10.9 |
| Evangelical Lutheran Church in America | 1 | 134 | 9.3 |
| African Methodist Episcopal Church | 1 | 76 | 5.2 |
| Church of God (Anderson, Indiana) | 1 | 52 | 3.6 |
| Evangelical Friends Church International | 1 | 42 | 2.9 |
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 (14,485). Largest 12 bodies by adherents shown.
Directory traditions here: Methodist (15) · Evangelical (7) · Catholic (5) · Church of Christ (4) · Church of the Nazarene (4) · Presbyterian (3) · Assemblies of God (2) · United Methodist (2) · Baptist Churches (2) · Non-Denominational (2)
Directory listings are mapped to Harrison 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.