Photo: Marine 69-71 · CC BY-SA 4.0Living in Pima, AZ: what to set up and who to call
Graham County Utilities - Pima reported 5 health-based violations to EPA in the last five years: a groundwater treatment requirement (Groundwater Rule) ×5. 80% of systems its size reported none. Power in Pima comes from Graham County Electric Coop, a cooperative utility rather than a private company.
I’m new in town
What to set up in Pima, 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 Pima.
Power comes from Graham County Electric Coop
Graham County Electric Coop (Graham County Electric Coop Inc), a cooperative utility, serves all of Pima.
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Graham County Utilities - Pima
Graham County Utilities - Pima supplies Pima: about 89% of residents live in its service area. About 7% of homes are outside any mapped community water system, most likely on private wells, which EPA doesn’t regulate. It draws ground water and serves 3,799 people in all.
5 health-based violations reported to EPA in the five years to October 2026: a groundwater treatment requirement (Groundwater Rule) ×5, the latest beginning Feb 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 2022–Dec 2024, 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. Violations are counted by the start of their compliance period. AZ0405002.
3 home internet providers serve Pima
97% of 1,120 addresses can get 100/20 Mbps; 0% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Sparklight | Cable | 94% | 1,000/50 |
| Tristate Wi-Fi by Wi-Fiber | Fixed wireless | 70% | 100/20 |
| Bluespan Wireless | Fixed wireless | 8% | 350/35 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Pima’s trash rules yet
Pickup rules, the dump and recycling in Pima.
Where your child goes to school
Public school districts and the school path by grade.
Pima is in Pima Unified District.
B−School 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 Sep 2025; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Sep 12, 2025.
Pima is in ZIP code 85543
ZIP codes where Pima residents live, with the share of the town in each.
| ZIP | Post office name | Share of Pima | ZIP’s residents in Pima |
|---|---|---|---|
| 85543 | Pima, AZ | 100% | 66% |
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 Pima
Who supplies Pima’s drinking water, and has it had violations?
Graham County Utilities - Pima (EPA ID AZ0405002). It reported 5 health-based violations to EPA in the five years to October 2026: a groundwater treatment requirement (Groundwater Rule) ×5. 80% of systems its size had none. Its latest lead 90th percentile was 0.0 ppb (Jan 2022–Dec 2024), against a 15 ppb action level.
Who provides electricity in Pima?
Graham County Electric Coop (Graham County Electric Coop Inc), a cooperative utility.
What internet providers serve Pima?
Sparklight, Tristate Wi-Fi by Wi-Fiber, Bluespan Wireless (FCC, as of December 2025).
What ZIP codes are in Pima?
85543. Census 2020 ZIP Code Tabulation Areas.
What school district is Pima in?
Pima Unified District.
How do I register to vote in Pima?
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 Graham 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 National Broadband Map, as of December 2025.