Warren County, Pennsylvania has 71 churches in the Churches List directory, 0 of them verified and 15 with a published website. The 2020 US Religion Census counted 78 congregations and 14,558 adherents across 28 religious bodies in the county. That is 377 adherents per 1,000 residents of its 38,585 people.
| Religious body | Congregations | Adherents | Per 1,000 pop. |
|---|---|---|---|
| United Methodist Church | 19 | 3,751 | 97.2 |
| Catholic Church | 6 | 3,112 | 80.7 |
| Evangelical Lutheran Church in America | 7 | 1,420 | 36.8 |
| Non-denominational Christian Churches | 2 | 1,230 | 31.9 |
| Amish Groups, undifferentiated | 9 | 916 | 23.7 |
| National Missionary Baptist Convention, Inc. | 1 | 700 | 18.1 |
| Presbyterian Church (U.S.A.) | 6 | 609 | 15.8 |
| Free Methodist Church--USA | 4 | 408 | 10.6 |
| Church of the Nazarene | 1 | 388 | 10.1 |
| Christian and Missionary Alliance | 2 | 312 | 8.1 |
| Evangelical Covenant Church | 3 | 297 | 7.7 |
| Church of God (Anderson, Indiana) | 1 | 200 | 5.2 |
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 (38,585). Largest 12 bodies by adherents shown.
Directory traditions here: Methodist (17) · Baptist Churches (7) · Presbyterian (6) · Lutheran (6) · United Methodist (6) · Catholic (6) · Community (4) · Non-Denominational (3) · Bible (2) · Seventh Day Adventist (2)
Directory listings are mapped to Warren 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.