Living in Arimo, ID: what to set up and who to call
An EPA health-based violation from 2026 is still open for the City of Arimo water system, and its latest lead result (14.0 ppb) was higher than 98% of similar systems’, though under the 15 ppb action level. The ER is a drive from Arimo: the closest is Portneuf Medical Center, 24.9 miles away.
I’m new in town
What to set up in Arimo, 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 Arimo.
Power comes from Rocky Mountain Power
Rocky Mountain Power (PacifiCorp), an investor-owned utility, serves all of Arimo. Its homes paid an average of 13.5¢ per kWh in 2025, about $120 a month (its average across Idaho).
Start or move service: pacificorp.com · (888) 221-7070
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from City of Arimo water system
The City of Arimo water system supplies almost all of Arimo. It draws ground water and serves 368 people in all.
2 health-based violations reported to EPA in the five years to October 2026: a bacteria testing requirement (Revised Total Coliform Rule) ×2, the latest beginning Jun 2026. 77% of the 15,074 systems serving 101–500 people had none. 1 older violation is still open, since 2026: 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 2021–Dec 2023, was 14.0 ppb, below the 15 ppb action level that applied. That’s higher than 98% 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. ID6030002.
5 home internet providers serve Arimo
100% of 153 addresses can get 100/20 Mbps; 98% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Direct Communications Rockland | Fiber | 97% | 2,000/2,000 |
| CenturyLink | DSL | 78% | 80/10 |
| Fybercom | Fixed wireless | 100% | 120/100 |
| Rise Broadband | Fixed wireless | 98% | 25/5 |
| T-Mobile | Fixed wireless | 34% | 100/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Arimo’s trash rules yet
Pickup rules, the dump and recycling in Arimo.
Where your child goes to school
Public school districts and the school path by grade.
Arimo is in Marsh Valley Joint School District 21.
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.
Town hall and registering to vote
Who to call, and how to register.
Election office: FVAP local election office directory, updated Aug 2023; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Sep 12, 2025.
Arimo is in ZIP code 83214
ZIP codes where Arimo residents live, with the share of the town in each.
| ZIP | Post office name | Share of Arimo | ZIP’s residents in Arimo |
|---|---|---|---|
| 83214 | Arimo, ID | 100% | 49% |
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 Arimo
Who supplies Arimo’s drinking water, and has it had violations?
The City of Arimo water system (EPA ID ID6030002). It reported 2 health-based violations to EPA in the five years to October 2026: a bacteria testing requirement (Revised Total Coliform Rule) ×2. 77% of systems its size had none. Its latest lead 90th percentile was 14.0 ppb (Jan 2021–Dec 2023), against a 15 ppb action level.
Who provides electricity in Arimo?
Rocky Mountain Power (PacifiCorp), an investor-owned utility. Its homes paid about 13.5¢ per kWh in 2025 (EIA).
What internet providers serve Arimo?
Direct Communications Rockland, CenturyLink, Fybercom, Rise Broadband, T-Mobile (FCC, as of December 2025).
What ZIP codes are in Arimo?
83214. Census 2020 ZIP Code Tabulation Areas.
What school district is Arimo in?
Marsh Valley Joint School District 21.
How do I register to vote in Arimo?
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 Bannock 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 National Broadband Map, as of December 2025.