Photo: Phillip Capper from Wellington, New Zealand · CC BY 2.0Living in Naco, AZ: what to set up and who to call
An EPA health-based violation from 2022 is still open for Naco Water Co Main. Naco has no town government of its own, so Cochise County runs its elections and most services, and its children attend Naco Elementary District.
I’m new in town
What to set up in Naco, 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 Naco.
Power comes from APS
APS (Arizona Public Service Co.), an investor-owned utility, serves all of Naco. Its homes paid an average of 17.0¢ per kWh in 2025, about $165 a month (its average across Arizona).
Start or move service: aps.com
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Naco Water Co Main
Naco Water Co Main supplies Naco: about 88% of residents live in its service area. About 8% 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 658 people in all.
1 health-based violation reported to EPA in the five years to October 2026: a bacteria testing requirement (Revised Total Coliform Rule), beginning Nov 2022. 78% of the 5,327 systems serving 501–1,000 people had none. 1 older violation is still open, since 2022: a bacteria testing requirement (Revised Total Coliform Rule), per EPA’s records.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2026–Dec 2028, 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. AZ0402024.
4 home internet providers serve Naco
100% of 325 addresses can get 100/20 Mbps; 0% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Sparklight | Cable | 100% | 1,000/50 |
| CenturyLink | DSL | 78% | 40/3 |
| Verizon | Fixed wireless | 96% | 300/20 |
| AT&T | Fixed wireless | 5% | 25/3 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Naco’s trash rules yet
Pickup rules, the dump and recycling in Naco.
Where your child goes to school
Public school districts and the school path by grade.
Most of Naco (81%) is in Naco Elementary District; parts are in Bisbee Unified District (19%).
DSchool 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
Naco is unincorporated, so Cochise 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.
Naco spans 2 ZIP codes
ZIP codes where Naco residents live, with the share of the town in each.
| ZIP | Post office name | Share of Naco | ZIP’s residents in Naco |
|---|---|---|---|
| 85620 | Naco, AZ | 89% | 100% |
| 85603 | Bisbee, AZ | 11% | 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 Naco
Who supplies Naco’s drinking water, and has it had violations?
Naco Water Co Main (EPA ID AZ0402024). It reported 1 health-based violation to EPA in the five years to October 2026: a bacteria testing requirement (Revised Total Coliform Rule). 78% of systems its size had none. Its latest lead 90th percentile was 0.0 ppb (Jan 2026–Dec 2028), against a 15 ppb action level.
Who provides electricity in Naco?
APS (Arizona Public Service Co.), an investor-owned utility. Its homes paid about 17.0¢ per kWh in 2025 (EIA).
What internet providers serve Naco?
Sparklight, CenturyLink, Verizon, AT&T (FCC, as of December 2025).
What ZIP codes are in Naco?
85620 (89%), 85603 (11%), by share of residents. Census 2020 ZIP Code Tabulation Areas.
What school district is Naco in?
Naco Elementary District. Parts of the city are in Bisbee Unified District.
How do I register to vote in Naco?
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 Cochise 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.