Bethel Island, CA ZIP code
The ZIP code for Bethel Island, California is 94511. It is in Contra Costa County.
- Population in these ZIPs
- 1,864
- Avg. median income
- $75,000population-weighted
- Typical home value
- $626,500population-weighted
- Metro area
- San Francisco-Oakland-Fremont, CA
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Bethel Island, CA ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 94511 | 1,864 | $74,972 | $626,500 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities near Bethel Island
- Knightsen 4 mi
- Oakley 4 mi
- Brentwood 8 mi
- Isleton 9 mi
- Antioch 10 mi
- Thornton 11 mi
- Discovery Bay 11 mi
- Rio Vista 11 mi
- Walnut Grove 12 mi
- Birds Landing 13 mi
- Byron 14 mi
- Ryde 15 mi
Frequently asked questions
What is the ZIP code for Bethel Island, CA?
The ZIP code for Bethel Island, CA is 94511.
What county is Bethel Island, California in?
Bethel Island ZIP codes are in Contra Costa County.