Photo: Doc Searls · CC BY-SA 2.0Living in Half Moon Bay, CA: what to set up and who to call
All of Half Moon Bay gets its mail under one ZIP code, 94019. The closest ER is Sequoia Hospital, 8.8 miles away.
I’m new in town
What to set up in Half Moon Bay, 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 Half Moon Bay.
Power comes from PG&E
PG&E (Pacific Gas & Electric Co.), an investor-owned utility, serves all of Half Moon Bay. 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 Coastside County Water District
Coastside County Water District supplies almost all of Half Moon Bay. It draws surface water and serves 18,940 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 83% of the 3,525 systems serving 10,001–50,000 people.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2022–Dec 2024, was 1.6 ppb, below the 15 ppb action level that applied. The highest in five years was 2.7 ppb. That’s higher than 59% of similar systems’ latest results.
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. CA4110011.
5 home internet providers serve Half Moon Bay
99% of 3,938 addresses can get 100/20 Mbps; 42% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Xfinity | Cable | 99% | 2,000/250 |
| AT&T | Fiber, DSL, Fixed wireless | 65% | 5,000/5,000 |
| Cruzio | Fixed wireless | 84% | 1,000/1,000 |
| T-Mobile | Fixed wireless | 49% | 100/20 |
| Verizon | Fixed wireless | 48% | 300/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
Trash and recycling in Half Moon Bay
Pickup days, the drop-off and recycling in Half Moon Bay, from the town’s own site.
Beverage Container Recycling Center
60 Cabrillo Hwy N, Half Moon Bay, CA 94019 (behind CVS)
We couldn’t find pickup days or drop-off hours. Check halfmoonbay.gov →
From halfmoonbay.gov, the town’s official site, checked Oct 21, 2026. Rules change: the town’s page is the last word. .
Where your child goes to school
Public school districts and the school path by grade.
Half Moon Bay is in Cabrillo Unified School District.
BSchool gradeSee Schools →U.S. Department of Education, NCES Common Core of Data, 2024–25. Enrollment rules and registration are the district’s.
Town hall and registering to vote
Who to call, and how to register.
Election office: FVAP local election office directory, updated Oct 2024; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
Half Moon Bay is in ZIP code 94019
ZIP codes where Half Moon Bay residents live, with the share of the town in each.
| ZIP | Post office name | Share of Half Moon Bay | ZIP’s residents in Half Moon Bay |
|---|---|---|---|
| 94019 | Half Moon Bay, CA | 100% | 76% |
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 Half Moon Bay
Who supplies Half Moon Bay’s drinking water, and has it had violations?
Coastside County Water District (EPA ID CA4110011). It reported no health-based violations to EPA in the five years to October 2026; 83% of systems its size had none. Its latest lead 90th percentile was 1.6 ppb (Jan 2022–Dec 2024), against a 15 ppb action level.
Who provides electricity in Half Moon Bay?
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 Half Moon Bay?
Xfinity, AT&T, Cruzio, T-Mobile, Verizon (FCC, as of December 2025).
What ZIP codes are in Half Moon Bay?
94019. Census 2020 ZIP Code Tabulation Areas.
What school district is Half Moon Bay in?
Cabrillo Unified School District.
How do I register to vote in Half Moon Bay?
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 San Mateo County Clerk - Elections. 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: Half Moon Bay’s own website (halfmoonbay.gov), read Oct 21, 2026, pickup and drop-off facts extracted and checked against the page they came from.
- 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.