Decatur County, Tennessee has 42 churches in the Churches List directory, 0 of them verified and 2 with a published website. The 2020 US Religion Census counted 50 congregations and 6,389 adherents across 12 religious bodies in the county. That is 559 adherents per 1,000 residents of its 11,436 people.
| Religious body | Congregations | Adherents | Per 1,000 pop. |
|---|---|---|---|
| Southern Baptist Convention | 16 | 3,805 | 332.7 |
| United Methodist Church | 11 | 781 | 68.3 |
| Non-denominational Christian Churches | 5 | 700 | 61.2 |
| Churches of Christ | 5 | 409 | 35.8 |
| Church of God in Christ | 2 | 196 | 17.1 |
| Assemblies of God | 1 | 148 | 12.9 |
| African Methodist Episcopal Church | 2 | 106 | 9.3 |
| Seventh-day Adventist Church | 1 | 102 | 8.9 |
| Cumberland Presbyterian | 2 | 92 | 8.0 |
| Catholic Church | 1 | 50 | 4.4 |
| Church of God (Cleveland, Tennessee) | 1 | 0 | 0.0 |
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 (11,436). Largest 12 bodies by adherents shown.
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Directory traditions here: Baptist Churches (13) · Pentecostal (7) · Church of Christ (5) · Non-Denominational (3) · United Methodist (3) · Methodist (3) · Seventh Day Adventist (2) · Apostolic (2) · Church of God (1) · Church of God in Christ (1)
Directory listings are mapped to Decatur 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.