Living in Ali Chukson, AZ: what to set up and who to call
Ali Chukson has no town government of its own, so Pima County runs its elections and most services, and its children attend Indian Oasis-Baboquivari Unified District. Power in Ali Chukson comes from Trico Electric Cooperative, a cooperative utility rather than a private company.
I’m new in town
What to set up in Ali Chukson, 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 Ali Chukson.
Power comes from Trico Electric Cooperative
Trico Electric Cooperative (Trico Electric Cooperative Inc), a cooperative utility, serves all of Ali Chukson. Its homes paid an average of 14.3¢ per kWh in 2025, about $131 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 Little Tucson water system
The Little Tucson water system supplies Ali Chukson: about 41% of residents live in its service area. About 59% 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 328 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 2023–Dec 2025, was 0.5 ppb, below the 15 ppb action level that applied. That’s lower than 56% 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. 090400040.
1 home internet providers serve Ali Chukson
100% of 60 addresses can get 100/20 Mbps; 100% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Tohono O'Odham Utility Authority | Fiber | 100% | 250/50 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Ali Chukson’s trash rules yet
Pickup rules, the dump and recycling in Ali Chukson.
Where your child goes to school
Public school districts and the school path by grade.
Ali Chukson is in Indian Oasis-Baboquivari 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
Ali Chukson is unincorporated, so Pima 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.
Ali Chukson is in ZIP code 85634
ZIP codes where Ali Chukson residents live, with the share of the town in each.
| ZIP | Post office name | Share of Ali Chukson | ZIP’s residents in Ali Chukson |
|---|---|---|---|
| 85634 | Sells, AZ | 100% | 2% |
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 Ali Chukson
Who supplies Ali Chukson’s drinking water, and has it had violations?
The Little Tucson water system (EPA ID 090400040). 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 0.5 ppb (Jan 2023–Dec 2025), against a 15 ppb action level.
Who provides electricity in Ali Chukson?
Trico Electric Cooperative (Trico Electric Cooperative Inc), a cooperative utility. Its homes paid about 14.3¢ per kWh in 2025 (EIA).
What internet providers serve Ali Chukson?
Tohono O'Odham Utility Authority (FCC, as of December 2025).
What ZIP codes are in Ali Chukson?
85634. Census 2020 ZIP Code Tabulation Areas.
What school district is Ali Chukson in?
Indian Oasis-Baboquivari Unified District.
How do I register to vote in Ali Chukson?
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 Pima 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.