Living in Yuma Proving Ground, AZ: what to set up and who to call
Yuma Proving Ground has no town government of its own, so Yuma County runs its elections and most services, and its children attend Yuma Elementary District. Power in Yuma Proving Ground comes from Wellton-Mohawk Irr & Drain Dist, a political subdivision utility rather than a private company.
I’m new in town
What to set up in Yuma Proving Ground, 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 Yuma Proving Ground.
Power comes from Wellton-Mohawk Irr & Drain Dist
Wellton-Mohawk Irr & Drain Dist (Wellton-Mohawk Irr & Drain Dist), a political subdivision utility, serves all of Yuma Proving Ground.
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Howard Cantonment Area water system
The Howard Cantonment Area water system supplies almost all of Yuma Proving Ground. It draws ground water and serves 1,500 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 78% of the 7,966 systems serving 1,001–3,300 people.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2022–Dec 2024, was 1.1 ppb, below the 15 ppb action level that applied. The highest in five years was 1.2 ppb. That’s higher than 54% 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. AZ0414403.
Which providers serve Yuma Proving Ground
This card will list the home internet providers the FCC’s National Broadband Map shows in Yuma Proving Ground, 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 Yuma Proving Ground’s trash rules yet
Pickup rules, the dump and recycling in Yuma Proving Ground.
Where your child goes to school
Public school districts and the school path by grade.
Yuma Proving Ground is in two districts that split the grades: Yuma Elementary District and Yuma Union High 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
Yuma Proving Ground is unincorporated, so Yuma 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.
Yuma Proving Ground is in ZIP code 85365
ZIP codes where Yuma Proving Ground residents live, with the share of the town in each.
| ZIP | Post office name | Share of Yuma Proving Ground | ZIP’s residents in Yuma Proving Ground |
|---|---|---|---|
| 85365 | Yuma, AZ | 100% | 1% |
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 Yuma Proving Ground
Who supplies Yuma Proving Ground’s drinking water, and has it had violations?
The Howard Cantonment Area water system (EPA ID AZ0414403). 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 1.1 ppb (Jan 2022–Dec 2024), against a 15 ppb action level.
Who provides electricity in Yuma Proving Ground?
Wellton-Mohawk Irr & Drain Dist (Wellton-Mohawk Irr & Drain Dist), a political subdivision utility.
What ZIP codes are in Yuma Proving Ground?
85365. Census 2020 ZIP Code Tabulation Areas.
What school district is Yuma Proving Ground in?
Yuma Elementary District and Yuma Union High School District.
How do I register to vote in Yuma Proving Ground?
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 Yuma 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.