Living in Cohassett Beach, WA: what to set up and who to call
Westport Water Department reported 4 health-based violations to EPA in the last five years: arsenic ×4. 80% of systems its size reported none. Cohassett Beach has no town government of its own, so Grays Harbor County runs its elections and most services, and its children attend Ocosta School District.
I’m new in town
What to set up in Cohassett Beach, 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 Cohassett Beach.
Power comes from PUD No 1 of Grays Harbor County
PUD No 1 of Grays Harbor County (PUD No 1 of Grays Harbor County), a political subdivision utility, serves all of Cohassett Beach. Its homes paid an average of 12.7¢ per kWh in 2025, about $133 a month (its average across Washington).
Start or move service: ghpud.org · (360) 532-4220
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Westport Water Department
Westport Water Department supplies almost all of Cohassett Beach. It draws ground water and serves 5,346 people in all.
4 health-based violations reported to EPA in the five years to October 2026: arsenic ×4, the latest beginning Apr 2025. 80% of the 5,012 systems serving 3,301–10,000 people had none.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2021–Dec 2023, was 2.9 ppb, below the 15 ppb action level that applied. That’s higher than 80% 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. WA5395300.
4 home internet providers serve Cohassett Beach
100% of 466 addresses can get 100/20 Mbps; 23% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Xfinity | Cable | 100% | 1,200/35 |
| Ziply Fiber | Fiber | 23% | 6,000/6,000 |
| T-Mobile | Fixed wireless | 47% | 100/20 |
| Verizon | Fixed wireless | 34% | 25/6 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Cohassett Beach’s trash rules yet
Pickup rules, the dump and recycling in Cohassett Beach.
Where your child goes to school
Public school districts and the school path by grade.
Cohassett Beach is in Ocosta School District.
Test scores and every school: see 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
Cohassett Beach is unincorporated, so Grays Harbor County is the local government.
Election office: FVAP local election office directory, updated Sep 2024; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Sep 30, 2026.
Cohassett Beach is in ZIP code 98595
ZIP codes where Cohassett Beach residents live, with the share of the town in each.
| ZIP | Post office name | Share of Cohassett Beach | ZIP’s residents in Cohassett Beach |
|---|---|---|---|
| 98595 | Westport, WA | 100% | 26% |
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 Cohassett Beach
Who supplies Cohassett Beach’s drinking water, and has it had violations?
Westport Water Department (EPA ID WA5395300). It reported 4 health-based violations to EPA in the five years to October 2026: arsenic ×4. 80% of systems its size had none. Its latest lead 90th percentile was 2.9 ppb (Jan 2021–Dec 2023), against a 15 ppb action level.
Who provides electricity in Cohassett Beach?
PUD No 1 of Grays Harbor County (PUD No 1 of Grays Harbor County), a political subdivision utility. Its homes paid about 12.7¢ per kWh in 2025 (EIA).
What internet providers serve Cohassett Beach?
Xfinity, Ziply Fiber, T-Mobile, Verizon (FCC, as of December 2025).
What ZIP codes are in Cohassett Beach?
98595. Census 2020 ZIP Code Tabulation Areas.
What school district is Cohassett Beach in?
Ocosta School District.
How do I register to vote in Cohassett Beach?
In Washington you can register online until 8 days before Election Day, in person up to and including Election Day, or by mail (received 8 days before). Elections here are run by the Grays Harbor County Auditor. Check your registration at voter.votewa.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 Sep 30, 2026 (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.