Orleans County, New York has 66 churches in the Churches List directory, 0 of them verified and 20 with a published website. The 2020 US Religion Census counted 61 congregations and 17,307 adherents across 25 religious bodies in the county. That is 429 adherents per 1,000 residents of its 40,357 people.
| Religious body | Congregations | Adherents | Per 1,000 pop. |
|---|---|---|---|
| Catholic Church | 4 | 6,244 | 154.7 |
| Muslim Estimate | 2 | 4,144 | 102.7 |
| United Methodist Church | 10 | 2,035 | 50.4 |
| Non-denominational Christian Churches | 5 | 1,090 | 27.0 |
| Evangelical Lutheran Church in America | 3 | 486 | 12.0 |
| American Baptist Churches in the USA | 4 | 478 | 11.8 |
| Presbyterian Church (U.S.A.) | 5 | 448 | 11.1 |
| Jehovah's Witnesses | 2 | 378 | 9.4 |
| National Missionary Baptist Convention, Inc. | 2 | 360 | 8.9 |
| Assemblies of God | 4 | 334 | 8.3 |
| Stauffer Mennonite Church | 1 | 280 | 6.9 |
| Christian and Missionary Alliance | 2 | 213 | 5.3 |
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 (40,357). Largest 12 bodies by adherents shown.
37 Mile Point Light House" Rev. Dr. Stephen P. Devine, Pastor
Directory traditions here: Catholic (13) · Baptist Churches (12) · Methodist (9) · United Methodist (5) · Non-Denominational (5) · Presbyterian (4) · Lutheran (4) · Episcopal (3) · Assemblies of God (2) · Evangelical (2)
Directory listings are mapped to Orleans 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.