Sweet Grass County, Montana has 11 churches in the Churches List directory, 0 of them verified and 3 with a published website. The 2020 US Religion Census counted 11 congregations and 1,028 adherents across 11 religious bodies in the county. That is 280 adherents per 1,000 residents of its 3,677 people.
| Religious body | Congregations | Adherents | Per 1,000 pop. |
|---|---|---|---|
| Evangelical Lutheran Church in America | 1 | 261 | 71.0 |
| Church of Jesus Christ of Latter-day Saints | 1 | 210 | 57.1 |
| Catholic Church | 1 | 150 | 40.8 |
| Evangelical Church, The | 1 | 115 | 31.3 |
| Lutheran Congregations in Mission for Christ | 1 | 80 | 21.8 |
| United Church of Christ | 1 | 78 | 21.2 |
| Episcopal Church | 1 | 67 | 18.2 |
| Seventh-day Adventist Church | 1 | 26 | 7.1 |
| Church of God (Cleveland, Tennessee) | 1 | 15 | 4.1 |
| Churches of Christ | 1 | 13 | 3.5 |
| Southern Baptist Convention | 1 | 13 | 3.5 |
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 (3,677). Largest 12 bodies by adherents shown.
Directory traditions here: Evangelical (2) · Lutheran (2) · Church of God (1) · United Church of Christ (1) · Episcopal (1) · Catholic (1) · Non-Denominational (1) · Seventh Day Adventist (1) · Baptist Churches (1)
Directory listings are mapped to Sweet Grass 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.