McLean County, North Dakota has 34 churches in the Churches List directory, 0 of them verified and 6 with a published website. The 2020 US Religion Census counted 40 congregations and 5,621 adherents across 15 religious bodies in the county. That is 575 adherents per 1,000 residents of its 9,780 people.
| Religious body | Congregations | Adherents | Per 1,000 pop. |
|---|---|---|---|
| Evangelical Lutheran Church in America | 11 | 2,281 | 233.2 |
| Catholic Church | 8 | 1,756 | 179.6 |
| Lutheran Church--Missouri Synod | 3 | 324 | 33.1 |
| United Church of Christ | 2 | 308 | 31.5 |
| Lutheran Congregations in Mission for Christ | 1 | 250 | 25.6 |
| Assemblies of God | 3 | 248 | 25.4 |
| United Methodist Church | 2 | 207 | 21.2 |
| Episcopal Church | 1 | 86 | 8.8 |
| Presbyterian Church (U.S.A.) | 1 | 62 | 6.3 |
| Church of God (Cleveland, Tennessee) | 1 | 51 | 5.2 |
| Seventh-day Adventist Church | 1 | 47 | 4.8 |
| Baha'i Faith USA | 0 | 1 | 0.1 |
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 (9,780). Largest 12 bodies by adherents shown.
Directory traditions here: Lutheran (13) · Catholic (6) · Baptist Churches (5) · Seventh Day Adventist (3) · Assemblies of God (2) · Presbyterian (2) · Non-Denominational (1) · United Methodist (1) · United Church of Christ (1)
Directory listings are mapped to McLean 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.