Living in Central, AZ: what to set up and who to call
An EPA health-based violation from 2024 is still open for the City of Safford water system, which supplies Central. Central has no town government of its own, so Graham County runs its elections and most services, and its children attend Thatcher Unified District.
I’m new in town
What to set up in Central, 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 Central.
Power comes from Graham County Electric Coop
Graham County Electric Coop (Graham County Electric Coop Inc), a cooperative utility, serves all of Central.
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from City of Safford water system
The City of Safford water system supplies almost all of Central. It draws ground water and serves 20,600 people in all.
1 health-based violation reported to EPA in the five years to October 2026: a groundwater treatment requirement (Groundwater Rule), beginning Nov 2024. 83% of the 3,525 systems serving 10,001–50,000 people had none. 1 older violation is still open, since 2024: a groundwater treatment requirement (Groundwater Rule), per EPA’s records.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2024–Dec 2026, was 0.0 ppb, below the 15 ppb action level that applied. The highest in five years was 2.2 ppb. 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. AZ0405005.
5 home internet providers serve Central
95% of 250 addresses can get 100/20 Mbps; 0% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Sparklight | Cable | 94% | 1,000/50 |
| AT&T | Fixed wireless | 26% | 25/3 |
| Tristate Wi-Fi by Wi-Fiber | Fixed wireless | 22% | 25/3 |
| T-Mobile | Fixed wireless | 14% | 100/20 |
| Verizon | Fixed wireless | 7% | 300/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Central’s trash rules yet
Pickup rules, the dump and recycling in Central.
Where your child goes to school
Public school districts and the school path by grade.
Central is in Thatcher Unified 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
Central is unincorporated, so Graham 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.
Central spans 2 ZIP codes
ZIP codes where Central residents live, with the share of the town in each.
| ZIP | Post office name | Share of Central | ZIP’s residents in Central |
|---|---|---|---|
| 85531 | Central, AZ | 97% | 97% |
| 85543 | Pima, AZ | 3% | 0% |
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 Central
Who supplies Central’s drinking water, and has it had violations?
The City of Safford water system (EPA ID AZ0405005). It reported 1 health-based violation to EPA in the five years to October 2026: a groundwater treatment requirement (Groundwater Rule). 83% of systems its size had none. Its latest lead 90th percentile was 0.0 ppb (Jan 2024–Dec 2026), against a 15 ppb action level.
Who provides electricity in Central?
Graham County Electric Coop (Graham County Electric Coop Inc), a cooperative utility.
What internet providers serve Central?
Sparklight, AT&T, Tristate Wi-Fi by Wi-Fiber, T-Mobile, Verizon (FCC, as of December 2025).
What ZIP codes are in Central?
85531 (97%), 85543 (3%), by share of residents. Census 2020 ZIP Code Tabulation Areas.
What school district is Central in?
Thatcher Unified District.
How do I register to vote in Central?
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.