Island County, Washington has 67 churches in the Churches List directory, 5 of them verified and 26 with a published website. The 2020 US Religion Census counted 66 congregations and 48,428 adherents across 27 religious bodies in the county. That is 558 adherents per 1,000 residents of its 86,851 people.
| Religious body | Congregations | Adherents | Per 1,000 pop. |
|---|---|---|---|
| Non-denominational Christian Churches | 14 | 31,420 | 361.8 |
| Catholic Church | 3 | 5,273 | 60.7 |
| Church of Jesus Christ of Latter-day Saints | 6 | 3,150 | 36.3 |
| Evangelical Lutheran Church in America | 4 | 2,427 | 27.9 |
| Southern Baptist Convention | 4 | 1,376 | 15.8 |
| Foursquare Gospel, International Church of the | 3 | 902 | 10.4 |
| United Methodist Church | 3 | 809 | 9.3 |
| Assemblies of God | 5 | 524 | 6.0 |
| Jehovah's Witnesses | 2 | 428 | 4.9 |
| Episcopal Church | 3 | 403 | 4.6 |
| Christian and Missionary Alliance | 2 | 322 | 3.7 |
| Church of the Nazarene | 1 | 320 | 3.7 |
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 (86,851). Largest 12 bodies by adherents shown.
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"His Kids Preschool has been an important ministry of Oak Harbor Lutheran Church since 1993. We typically offer two regular classes during the school year, a morning class and an a...
Directory traditions here: Non-Denominational (7) · Catholic (6) · Baptist Churches (6) · African Methodist Episcopal (4) · Episcopal (4) · Foursquare (3) · Lutheran (3) · Methodist (3) · Church of Christ (3) · Christian Schools (3)
Directory listings are mapped to Island 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.