Knox County, Indiana has 75 churches in the Churches List directory, 0 of them verified and 13 with a published website. The 2020 US Religion Census counted 72 congregations and 16,098 adherents across 29 religious bodies in the county. That is 444 adherents per 1,000 residents of its 36,289 people.
| Religious body | Congregations | Adherents | Per 1,000 pop. |
|---|---|---|---|
| Catholic Church | 2 | 4,078 | 112.4 |
| Church of God (Anderson, Indiana) | 3 | 2,058 | 56.7 |
| United Methodist Church | 15 | 1,520 | 41.9 |
| American Baptist Churches in the USA | 4 | 1,406 | 38.7 |
| Christian Churches and Churches of Christ | 7 | 1,272 | 35.1 |
| Non-denominational Christian Churches | 4 | 1,250 | 34.4 |
| Church of the Nazarene | 3 | 812 | 22.4 |
| Southern Baptist Convention | 3 | 724 | 20.0 |
| Lutheran Church--Missouri Synod | 2 | 656 | 18.1 |
| United Church of Christ | 2 | 569 | 15.7 |
| Church of Jesus Christ of Latter-day Saints | 1 | 335 | 9.2 |
| Presbyterian Church (U.S.A.) | 4 | 252 | 6.9 |
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 (36,289). Largest 12 bodies by adherents shown.
Directory traditions here: Baptist Churches (13) · Methodist (13) · Catholic (7) · Presbyterian (5) · Christian (5) · Church of God (4) · United Church of Christ (4) · Non-Denominational (3) · Lutheran (3) · Evangelical (3)
Directory listings are mapped to Knox 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.