Calhoun County, Illinois has 10 churches in the Churches List directory, 0 of them verified and 2 with a published website. The 2020 US Religion Census counted 14 congregations and 1,718 adherents across 8 religious bodies in the county. That is 387 adherents per 1,000 residents of its 4,438 people.
| Religious body | Congregations | Adherents | Per 1,000 pop. |
|---|---|---|---|
| Catholic Church | 4 | 870 | 196.0 |
| Lutheran Church--Missouri Synod | 3 | 354 | 79.8 |
| Southern Baptist Convention | 1 | 177 | 39.9 |
| Churches of Christ | 2 | 157 | 35.4 |
| Presbyterian Church (U.S.A.) | 1 | 95 | 21.4 |
| Evangelical Lutheran Church in America | 1 | 54 | 12.2 |
| United Methodist Church | 1 | 11 | 2.5 |
| Evangelical Church, The | 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 (4,438). Largest 12 bodies by adherents shown.
Directory traditions here: Catholic (5) · Lutheran (3) · Non-Denominational (1) · Methodist (1)
Directory listings are mapped to Calhoun 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.