Photo: Silus Grok from Salt Lake City, Utah, USA · CC BY-SA 2.0Living in Harrison, ID: what to set up and who to call
The City of Harrison water system reported one health-based violation to EPA in the last five years: a groundwater treatment requirement (Groundwater Rule), beginning Dec 2025. For an emergency, Benewah Community Hospital is the closest ER, 15.5 miles away.
I’m new in town
What to set up in Harrison, 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 Harrison.
Power comes from Avista
Avista (Avista Corp.), an investor-owned utility, serves all of Harrison. Its homes paid an average of 11.8¢ per kWh in 2025, about $107 a month (its average across Idaho).
Start or move service: avistacorp.com · (509) 489-0500
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from City of Harrison water system
The City of Harrison water system supplies Harrison: about 87% of residents live in its service area. 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 456 people in all.
1 health-based violation reported to EPA in the five years to October 2026: a groundwater treatment requirement (Groundwater Rule), beginning Dec 2025. 77% of the 15,074 systems serving 101–500 people had none.
The latest lead result on file, the 90th percentile of homes sampled in Jan–Dec 2026, was 1.0 ppb, below the 15 ppb action level that applied. The highest in five years was 8.0 ppb. That’s higher than 52% 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. ID1280083.
Which providers serve Harrison
This card will list the home internet providers the FCC’s National Broadband Map shows in Harrison, 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 Harrison’s trash rules yet
Pickup rules, the dump and recycling in Harrison.
Where your child goes to school
Public school districts and the school path by grade.
Harrison is in Kootenai Joint School District 274.
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.
Harrison is in ZIP code 83833
ZIP codes where Harrison residents live, with the share of the town in each.
| ZIP | Post office name | Share of Harrison | ZIP’s residents in Harrison |
|---|---|---|---|
| 83833 | Harrison, ID | 99% | 15% |
A few homes fall in 83876.
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 Harrison
Who supplies Harrison’s drinking water, and has it had violations?
The City of Harrison water system (EPA ID ID1280083). It reported 1 health-based violation to EPA in the five years to October 2026: a groundwater treatment requirement (Groundwater Rule). 77% of systems its size had none. Its latest lead 90th percentile was 1.0 ppb (Jan–Dec 2026), against a 15 ppb action level.
Who provides electricity in Harrison?
Avista (Avista Corp.), an investor-owned utility. Its homes paid about 11.8¢ per kWh in 2025 (EIA).
What ZIP codes are in Harrison?
83833. Census 2020 ZIP Code Tabulation Areas.
What school district is Harrison in?
Kootenai Joint School District 274.
How do I register to vote in Harrison?
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 Kootenai 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.