Humboldt County, Iowa has 24 churches in the Churches List directory, 0 of them verified and 7 with a published website. The 2020 US Religion Census counted 15 congregations and 5,383 adherents across 9 religious bodies in the county. That is 561 adherents per 1,000 residents of its 9,599 people.
| Religious body | Congregations | Adherents | Per 1,000 pop. |
|---|---|---|---|
| Catholic Church | 2 | 1,364 | 142.1 |
| United Methodist Church | 2 | 1,330 | 138.6 |
| Lutheran Church--Missouri Synod | 2 | 1,251 | 130.3 |
| Evangelical Lutheran Church in America | 2 | 1,027 | 107.0 |
| Lutheran Congregations in Mission for Christ | 2 | 210 | 21.9 |
| United Church of Christ | 1 | 120 | 12.5 |
| American Baptist Churches in the USA | 1 | 81 | 8.4 |
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 (9,599). Largest 12 bodies by adherents shown.
Directory traditions here: Lutheran (8) · Catholic (5) · United Methodist (4) · Baptist Churches (2) · Methodist (2) · Evangelical (1) · Other Christian Services (1) · Seventh Day Adventist (1)
Directory listings are mapped to Humboldt 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.