Living in Arbon Valley, ID: what to set up and who to call
Arbon Valley has no town government of its own, so Power County runs its elections and most services, and its children attend American Falls Joint School District 381. Portneuf Medical Center, 8.9 miles away, is the nearest emergency room.
I’m new in town
What to set up in Arbon Valley, 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 Arbon Valley.
Power comes from Idaho Power
Idaho Power (Idaho Power Co), an investor-owned utility, serves all of Arbon Valley. Its homes paid an average of 11.8¢ per kWh in 2025, about $106 a month (its average across Idaho).
Start or move service: idahopower.com · (800) 488-6151
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Big Sky N. Subdivision water system
The Big Sky N. Subdivision water system supplies Arbon Valley: about 36% of residents live in its service area. About 64% 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 300 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 2024–Dec 2026, was 4.0 ppb, below the 15 ppb action level that applied. That’s higher than 87% 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. 101600010.
Which providers serve Arbon Valley
This card will list the home internet providers the FCC’s National Broadband Map shows in Arbon Valley, the share of addresses that can get 100/20 Mbps and the share with fiber, with the map’s “as of” date.
Source to come: FCC Broadband Data Collection.
We don’t have Arbon Valley’s trash rules yet
Pickup rules, the dump and recycling in Arbon Valley.
Where your child goes to school
Public school districts and the school path by grade.
Arbon Valley is in American Falls Joint School District 381.
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
Arbon Valley is unincorporated, so Power County is the local government.
Election office: FVAP local election office directory, updated Mar 2021; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Sep 12, 2025.
Arbon Valley is in ZIP code 83204
ZIP codes where Arbon Valley residents live, with the share of the town in each.
| ZIP | Post office name | Share of Arbon Valley | ZIP’s residents in Arbon Valley |
|---|---|---|---|
| 83204 | Pocatello, ID | 100% | 4% |
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 Arbon Valley
Who supplies Arbon Valley’s drinking water, and has it had violations?
The Big Sky N. Subdivision water system (EPA ID 101600010). 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 4.0 ppb (Jan 2024–Dec 2026), against a 15 ppb action level.
Who provides electricity in Arbon Valley?
Idaho Power (Idaho Power Co), an investor-owned utility. Its homes paid about 11.8¢ per kWh in 2025 (EIA).
What ZIP codes are in Arbon Valley?
83204. Census 2020 ZIP Code Tabulation Areas.
What school district is Arbon Valley in?
American Falls Joint School District 381.
How do I register to vote in Arbon Valley?
In Idaho you can register online until 11 days before Election Day, in person up to and including Election Day, or by mail (received 11 days before). Elections here are run by the Power County Clerk. Check your registration at elections.sos.idaho.gov.
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): pending.