Butler County, Pennsylvania has 279 churches in the Churches List directory, 2 of them verified and 87 with a published website. The 2020 US Religion Census counted 202 congregations and 104,569 adherents across 46 religious bodies in the county. That is 540 adherents per 1,000 residents of its 193,774 people.
| Religious body | Congregations | Adherents | Per 1,000 pop. |
|---|---|---|---|
| Catholic Church | 20 | 58,766 | 303.3 |
| Non-denominational Christian Churches | 27 | 12,540 | 64.7 |
| United Methodist Church | 28 | 9,280 | 47.9 |
| Evangelical Lutheran Church in America | 15 | 6,377 | 32.9 |
| Presbyterian Church (U.S.A.) | 33 | 4,830 | 24.9 |
| Christian and Missionary Alliance | 8 | 3,483 | 18.0 |
| Church of Jesus Christ of Latter-day Saints | 3 | 1,551 | 8.0 |
| Lutheran Church--Missouri Synod | 2 | 1,411 | 7.3 |
| Christian Churches and Churches of Christ | 2 | 941 | 4.9 |
| Assemblies of God | 6 | 893 | 4.6 |
| Presbyterian Church in America | 4 | 851 | 4.4 |
| Church of God (Anderson, Indiana) | 1 | 744 | 3.8 |
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 (193,774). Largest 12 bodies by adherents shown.
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Directory traditions here: Catholic (35) · Presbyterian (33) · Evangelical (24) · Lutheran (24) · United Methodist (20) · Non-Denominational (20) · Methodist (19) · African Methodist Episcopal (15) · Baptist Churches (13) · Christian and Missionary Alliance (7)
Directory listings are mapped to Butler 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.