Ottawa County, Kansas has 31 churches in the Churches List directory, 1 of them verified and 6 with a published website. The 2020 US Religion Census counted 18 congregations and 2,181 adherents across 7 religious bodies in the county. That is 381 adherents per 1,000 residents of its 5,729 people.
| Religious body | Congregations | Adherents | Per 1,000 pop. |
|---|---|---|---|
| Non-denominational Christian Churches | 6 | 850 | 148.4 |
| United Methodist Church | 4 | 456 | 79.6 |
| Catholic Church | 1 | 298 | 52.0 |
| American Baptist Churches in the USA | 2 | 289 | 50.4 |
| Presbyterian Church (U.S.A.) | 3 | 164 | 28.6 |
| Evangelical Lutheran Church in America | 1 | 78 | 13.6 |
| Wesleyan Church | 1 | 46 | 8.0 |
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 (5,729). Largest 12 bodies by adherents shown.
Directory traditions here: Methodist (7) · United Methodist (4) · Catholic (4) · Evangelical (2) · Church of the Nazarene (2) · Baptist Churches (2) · Presbyterian (2) · Bible (2) · Vineyard (1) · Wesleyan (1)
Directory listings are mapped to Ottawa 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.