Randolph County, Illinois has 71 churches in the Churches List directory, 0 of them verified and 16 with a published website. The 2020 US Religion Census counted 71 congregations and 15,721 adherents across 24 religious bodies in the county. That is 521 adherents per 1,000 residents of its 30,164 people.
| Religious body | Congregations | Adherents | Per 1,000 pop. |
|---|---|---|---|
| Lutheran Church--Missouri Synod | 9 | 5,237 | 173.6 |
| Catholic Church | 8 | 3,390 | 112.4 |
| Southern Baptist Convention | 10 | 2,495 | 82.7 |
| Evangelical Lutheran Church in America | 5 | 1,222 | 40.5 |
| United Methodist Church | 9 | 979 | 32.5 |
| United Church of Christ | 2 | 456 | 15.1 |
| Presbyterian Church (U.S.A.) | 5 | 442 | 14.7 |
| Church of God in Christ | 1 | 428 | 14.2 |
| National Missionary Baptist Convention, Inc. | 2 | 226 | 7.5 |
| Presbyterian Church in America | 2 | 160 | 5.3 |
| Assemblies of God | 3 | 139 | 4.6 |
| Jehovah's Witnesses | 1 | 136 | 4.5 |
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 (30,164). Largest 12 bodies by adherents shown.
Directory traditions here: Baptist Churches (11) · Catholic (10) · Lutheran (9) · Methodist (5) · Presbyterian (5) · United Methodist (5) · Non-Denominational (5) · Church of the Nazarene (3) · Assemblies of God (3) · Apostolic (2)
Directory listings are mapped to Randolph 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.