Columbia County, Washington has 15 churches in the Churches List directory, 0 of them verified and 4 with a published website. The 2020 US Religion Census counted 12 congregations and 1,060 adherents across 13 religious bodies in the county. That is 268 adherents per 1,000 residents of its 3,952 people.
| Religious body | Congregations | Adherents | Per 1,000 pop. |
|---|---|---|---|
| Catholic Church | 1 | 271 | 68.6 |
| Church of Jesus Christ of Latter-day Saints | 1 | 219 | 55.4 |
| Christian Churches and Churches of Christ | 1 | 116 | 29.4 |
| Lutheran Congregations in Mission for Christ | 1 | 90 | 22.8 |
| Seventh-day Adventist Church | 1 | 90 | 22.8 |
| United Church of Christ | 1 | 65 | 16.4 |
| United Methodist Church | 1 | 54 | 13.7 |
| Church of the United Brethren in Christ USA | 1 | 50 | 12.7 |
| Church of the Nazarene | 1 | 43 | 10.9 |
| Southern Baptist Convention | 1 | 38 | 9.6 |
| Episcopal Church | 1 | 15 | 3.8 |
| Baha'i Faith USA | 0 | 9 | 2.3 |
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 (3,952). Largest 12 bodies by adherents shown.
Directory traditions here: Community (2) · Catholic (2) · Congregational (1) · Lutheran (1) · Episcopal (1) · United Methodist (1) · Seventh Day Adventist (1) · Church of the Nazarene (1) · Brethren (1) · Church of Jesus Christ Of Latter Day Saints (1)
Directory listings are mapped to Columbia 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.