Living in Bethel Island, CA: what to set up and who to call
Bethel Island has no town government of its own, so Contra Costa County runs its elections and most services, and its children attend Liberty Union High School District. For a library card, the closest branch is Oakley Library, 6.4 miles out.
I’m new in town
What to set up in Bethel Island, and who provides it. Tap an answer for the details and where they come from.
Power, water and internet
Who to call to start service at a new address in Bethel Island.
Power comes from PG&E
PG&E (Pacific Gas & Electric Co.), an investor-owned utility, serves all of Bethel Island. Its homes paid an average of 37.5¢ per kWh in 2025, about $174 a month (its average across California, for customers on its standard service). California lets you buy power from another supplier; 66% of PG&E’s home customers do, and PG&E still delivers it.
Start or move service: pgecorp.com
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Pleasantimes Mutual Water Co
Pleasantimes Mutual Water Co supplies Bethel Island: about 21% of residents live in its service area. Willow Mobile Home Park serves another 16%. Anglers Subdivision 4 serves another 10%. Bethel Island Estates serves another 5%. About 53% of homes are outside any mapped community water system, most likely on private wells, which EPA doesn’t regulate. It draws ground water and serves 644 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 78% of the 5,327 systems serving 501–1,000 people.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2017–Dec 2019, was 0.5 ppb, below the 15 ppb action level that applied. It’s from 2019: EPA has no newer result for this system.
The system’s full record: EPA ECHO report
EPA SDWIS via Envirofacts (violations pulled Oct 9, 2026) and ECHO (lead samples, 2026Q3); service area: EPA Community Water System Service Area Boundaries v3.0. Violations are counted by the start of their compliance period. CA0707576.
4 home internet providers serve Bethel Island
97% of 1,408 addresses can get 100/20 Mbps; 4% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Xfinity | Cable | 97% | 2,000/2,000 |
| AT&T | Fixed wireless, DSL, Fiber | 45% | 5,000/5,000 |
| Unwired | Fixed wireless | 56% | 300/25 |
| Verizon | Fixed wireless | 17% | 300/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Bethel Island’s trash rules yet
Pickup rules, the dump and recycling in Bethel Island.
Where your child goes to school
Public school districts and the school path by grade.
Bethel Island is in two districts that split the grades: Liberty Union High School District and Oakley Union Elementary School District.
C+School gradeSee Schools →U.S. Department of Education, NCES Common Core of Data, 2024–25. Enrollment rules and registration are the district’s.
No town hall: the county runs things
Bethel Island is unincorporated, so Contra Costa County is the local government.
Election office: FVAP local election office directory, updated Aug 2025; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
Bethel Island is in ZIP code 94511
ZIP codes where Bethel Island residents live, with the share of the town in each.
| ZIP | Post office name | Share of Bethel Island | ZIP’s residents in Bethel Island |
|---|---|---|---|
| 94511 | Bethel Island, CA | 100% | 100% |
Census 2020 ZIP Code Tabulation Areas, by census block; post office names: GeoNames (CC BY 4.0). ZIPs created since 2020 are missing.
Getting around, the ER and the library
One line each; the subject pages have the rest.
ER: CMS hospital data. Library: IMLS Public Libraries Survey, FY2024.
Questions about living in Bethel Island
Who supplies Bethel Island’s drinking water, and has it had violations?
Pleasantimes Mutual Water Co (EPA ID CA0707576). It reported no health-based violations to EPA in the five years to October 2026; 78% of systems its size had none. Its latest lead 90th percentile was 0.5 ppb (Jan 2017–Dec 2019), against a 15 ppb action level.
Who provides electricity in Bethel Island?
PG&E (Pacific Gas & Electric Co.), an investor-owned utility. Its homes paid about 37.5¢ per kWh in 2025 (EIA).
What internet providers serve Bethel Island?
Xfinity, AT&T, Unwired, Verizon (FCC, as of December 2025).
What ZIP codes are in Bethel Island?
94511. Census 2020 ZIP Code Tabulation Areas.
What school district is Bethel Island in?
Liberty Union High School District and Oakley Union Elementary School District.
How do I register to vote in Bethel Island?
In California you can register online until 15 days before Election Day, in person up to and including Election Day, or by mail (postmarked 15 days before). Elections here are run by the Contra Costa County Elections Division. Check your registration at voterstatus.sos.ca.gov.
Sources & dates
Every answer above names its source. Here they are with their dates.
- Water: EPA SDWIS (Envirofacts, pulled Oct 9, 2026), ECHO SDWA 2026Q3, EPA CWS Service Area Boundaries v3.0.
- Power: HIFLD Electric Retail Service Territories (map Aug 2023); EIA-861 final 2025.
- Trash: OpenStreetMap, Geofabrik extract of Oct 9, 2026. © OpenStreetMap contributors (ODbL).
- ZIP codes: Census 2020 ZCTA relationship files; GeoNames postal codes (CC BY 4.0).
- Schools: NCES Common Core of Data, 2024–25.
- Registration: vote.gov, updated Nov 18, 2024 (read Oct 10, 2026). Official sites and area codes: Wikidata.
- Election office: FVAP local election office directory (fetched Oct 10, 2026; each record dated), EAC EAVS 2024 jurisdictions; registration and lookup links from vote.gov’s state data, checked Oct 10, 2026.
- Internet: FCC National Broadband Map, as of December 2025.