Photo: Marine 69-71 · CC BY-SA 4.0Living in Whiteriver, AZ: what to set up and who to call
An EPA health-based violation from 2026 is still open for the Wmatua Miner Flat water system, which supplies Whiteriver. Whiteriver has no town government of its own, so Navajo County runs its elections and most services, and its children attend Whiteriver Unified District.
I’m new in town
What to set up in Whiteriver, 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 Whiteriver.
Power comes from Navopache Electric Coop
Navopache Electric Coop (Navopache Electric Coop, Inc), a cooperative utility, serves all of Whiteriver. Its homes paid an average of 13.5¢ per kWh in 2025, about $81 a month (its average across Arizona).
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Wmatua Miner Flat water system
The Wmatua Miner Flat water system supplies Whiteriver: about 90% of residents live in its service area. About 10% of homes are outside any mapped community water system, most likely on private wells, which EPA doesn’t regulate. It draws surface water and serves 15,570 people in all.
11 health-based violations reported to EPA in the five years to October 2026: a groundwater treatment requirement (Groundwater Rule) ×10, a lead and copper treatment requirement (Lead and Copper Rule Revisions), the latest beginning Jan 2026. 83% of the 3,525 systems serving 10,001–50,000 people had none. 9 older violations are still open, since 2026: a groundwater treatment requirement (Groundwater Rule), per EPA’s records.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2023–Dec 2025, was 1.0 ppb, below the 15 ppb action level that applied. The highest in five years was 2.8 ppb. That’s lower 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 (EPA’s estimate). Violations are counted by the start of their compliance period. 090400693.
Which providers serve Whiteriver
This card will list the home internet providers the FCC’s National Broadband Map shows in Whiteriver, the share of addresses that can get 100/20 Mbps and the share with fiber, with the map’s “as of” date.
Source to come: FCC Broadband Data Collection.
We don’t have Whiteriver’s trash rules yet
Pickup rules, the dump and recycling in Whiteriver.
Where your child goes to school
Public school districts and the school path by grade.
Whiteriver is in Whiteriver Unified 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
Whiteriver is unincorporated, so Navajo County is the local government.
Election office: FVAP local election office directory, updated Sep 2025; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Sep 12, 2025.
Whiteriver is in ZIP code 85941
ZIP codes where Whiteriver residents live, with the share of the town in each.
| ZIP | Post office name | Share of Whiteriver | ZIP’s residents in Whiteriver |
|---|---|---|---|
| 85941 | Whiteriver, AZ | 100% | 43% |
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 Whiteriver
Who supplies Whiteriver’s drinking water, and has it had violations?
The Wmatua Miner Flat water system (EPA ID 090400693). It reported 11 health-based violations to EPA in the five years to October 2026: a groundwater treatment requirement (Groundwater Rule) ×10, a lead and copper treatment requirement (Lead and Copper Rule Revisions). 83% of systems its size had none. Its latest lead 90th percentile was 1.0 ppb (Jan 2023–Dec 2025), against a 15 ppb action level.
Who provides electricity in Whiteriver?
Navopache Electric Coop (Navopache Electric Coop, Inc), a cooperative utility. Its homes paid about 13.5¢ per kWh in 2025 (EIA).
What ZIP codes are in Whiteriver?
85941. Census 2020 ZIP Code Tabulation Areas.
What school district is Whiteriver in?
Whiteriver Unified District.
How do I register to vote in Whiteriver?
In Arizona you can register online until 29 days before Election Day, in person until 29 days before Election Day, or by mail (postmarked 29 days before). Elections here are run by the Navajo County Recorder. Check your registration at my.arizona.vote.
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 12, 2025 (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): pending.