Photo: Ian Poellet · CC BY-SA 3.0Living in Mosier, OR: what to set up and who to call
Tap water in Mosier comes from the City of Mosier water system, which has a clean five-year EPA record (about 23% of systems its size had a health-based violation) and a latest lead result below detection. Power in Mosier comes from Northern Wasco County PUD, a political subdivision utility rather than a private company.
I’m new in town
What to set up in Mosier, 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 Mosier.
Power comes from Northern Wasco County PUD
Northern Wasco County PUD (Northern Wasco County PUD - (OR)), a political subdivision utility, serves all of Mosier. Its homes paid an average of 7.9¢ per kWh in 2025, about $95 a month (its average across Oregon).
Start or move service: nwasco.com · (541) 296-2226
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from City of Mosier water system
The City of Mosier water system supplies almost all of Mosier. It draws ground water and serves 468 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 77% of the 15,074 systems serving 101–500 people.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2021–Dec 2023, was 0.0 ppb, below the 15 ppb action level that applied. Results below detection are reported as 0, so 0 doesn’t mean no lead at any tap.
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 (EPA’s estimate). Violations are counted by the start of their compliance period. OR4100543.
4 home internet providers serve Mosier
55% of 272 addresses can get 100/20 Mbps; 54% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Mosier WiNet | Fiber, Fixed wireless | 86% | 100/100 |
| CenturyLink | DSL | 68% | 40/3 |
| Verizon | Fixed wireless | 74% | 300/20 |
| AT&T | Fixed wireless | 41% | 25/3 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Mosier’s trash rules yet
Pickup rules, the dump and recycling in Mosier.
Where your child goes to school
Public school districts and the school path by grade.
Mosier is in North Wasco School District 21.
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.
Town hall and registering to vote
Who to call, and how to register.
Election office: FVAP local election office directory, updated Sep 2025; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Oct 2, 2026.
Mosier is in ZIP code 97040
ZIP codes where Mosier residents live, with the share of the town in each.
| ZIP | Post office name | Share of Mosier | ZIP’s residents in Mosier |
|---|---|---|---|
| 97040 | Mosier, OR | 100% | 35% |
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 Mosier
Who supplies Mosier’s drinking water, and has it had violations?
The City of Mosier water system (EPA ID OR4100543). It reported no health-based violations to EPA in the five years to October 2026; 77% of systems its size had none. Its latest lead 90th percentile was 0.0 ppb (Jan 2021–Dec 2023), against a 15 ppb action level.
Who provides electricity in Mosier?
Northern Wasco County PUD (Northern Wasco County PUD - (OR)), a political subdivision utility. Its homes paid about 7.9¢ per kWh in 2025 (EIA).
What internet providers serve Mosier?
Mosier WiNet, CenturyLink, Verizon, AT&T (FCC, as of December 2025).
What ZIP codes are in Mosier?
97040. Census 2020 ZIP Code Tabulation Areas.
What school district is Mosier in?
North Wasco School District 21.
How do I register to vote in Mosier?
In Oregon you can register online until 21 days before Election Day, in person until 21 days before Election Day, or by mail (postmarked 21 days before). Elections here are run by the Wasco County Clerk, Elections Office. Check your registration at sos.oregon.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 Oct 2, 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.