Montezuma Castle National Monument · Photo: Bernard Gagnon · CC BY-SA 3.0Living in Lake Montezuma, AZ: what to set up and who to call
Lake Montezuma has no town government of its own, so Yavapai County runs its elections and most services, and its children attend Beaver Creek Elementary District. Arizona Water Co - Rimrock reported one health-based violation to EPA in the last five years: a lead and copper treatment requirement (Lead and Copper Rule Revisions), beginning Oct 2024.
I’m new in town
What to set up in Lake Montezuma, 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 Lake Montezuma.
Power comes from APS
APS (Arizona Public Service Co.), an investor-owned utility, serves all of Lake Montezuma. 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 Arizona Water Co - Rimrock
Arizona Water Co - Rimrock supplies Lake Montezuma: about 74% of residents live in its service area. Montezuma Rimrock Water Company serves another 14%. About 13% 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 3,423 people in all.
1 health-based violation reported to EPA in the five years to October 2026: a lead and copper treatment requirement (Lead and Copper Rule Revisions), beginning Oct 2024. 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 2021–Dec 2023, 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. AZ0413046.
4 home internet providers serve Lake Montezuma
89% of 2,504 addresses can get 100/20 Mbps; 0% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Optimum | Cable | 64% | 940/35 |
| CenturyLink | DSL | 22% | 40/3 |
| Verde Valley Internet | Fixed wireless | 95% | 100/25 |
| Tristate Wi-Fi by Wi-Fiber | Fixed wireless | 29% | 100/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Lake Montezuma’s trash rules yet
Pickup rules, the dump and recycling in Lake Montezuma.
Where your child goes to school
Public school districts and the school path by grade.
Lake Montezuma is in Beaver Creek Elementary District.
C+School 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
Lake Montezuma is unincorporated, so Yavapai 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.
Lake Montezuma is in ZIP code 86335
ZIP codes where Lake Montezuma residents live, with the share of the town in each.
| ZIP | Post office name | Share of Lake Montezuma | ZIP’s residents in Lake Montezuma |
|---|---|---|---|
| 86335 | Rimrock, AZ | 100% | 98% |
86342 is P.O. box or single-organization ZIP with no homes.
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 Lake Montezuma
Who supplies Lake Montezuma’s drinking water, and has it had violations?
Arizona Water Co - Rimrock (EPA ID AZ0413046). It reported 1 health-based violation to EPA in the five years to October 2026: a lead and copper treatment requirement (Lead and Copper Rule Revisions). 80% of systems its size had none. Its latest lead 90th percentile was 0.0 ppb (Jan 2021–Dec 2023), against a 15 ppb action level.
Who provides electricity in Lake Montezuma?
APS (Arizona Public Service Co.), an investor-owned utility. Its homes paid about 17.0¢ per kWh in 2025 (EIA).
What internet providers serve Lake Montezuma?
Optimum, CenturyLink, Verde Valley Internet, Tristate Wi-Fi by Wi-Fiber (FCC, as of December 2025).
What ZIP codes are in Lake Montezuma?
86335. Census 2020 ZIP Code Tabulation Areas.
What school district is Lake Montezuma in?
Beaver Creek Elementary District.
How do I register to vote in Lake Montezuma?
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 Yavapai 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.