Photo: Ken Lund · CC BY-SA 2.0Living in Lewiston, ID: what to set up and who to call
All of Lewiston gets its mail under one ZIP code, 83501. Almost every address in Lewiston can get fiber (100%, by the FCC’s map).
I’m new in town
What to set up in Lewiston, 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 Lewiston.
Power comes from Avista
Avista (Avista Corp.), an investor-owned utility, serves all of Lewiston. 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 Lewiston water system
The City of Lewiston water system supplies Lewiston: about 76% of residents live in its service area. Lewiston Orchards Irrigation Dist serves another 21%. About 4% of homes are outside any mapped community water system, most likely on private wells, which EPA doesn’t regulate. It draws surface water and serves 15,001 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 83% of the 3,525 systems serving 10,001–50,000 people.
The latest lead result on file, the 90th percentile of homes sampled in Jan–Dec 2026, was 0.0 ppb, below the 15 ppb action level that applied. The highest in five years was 3.0 ppb. 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 (EPA’s estimate). Violations are counted by the start of their compliance period. ID2350014.
7 home internet providers serve Lewiston
100% of 12,790 addresses can get 100/20 Mbps; 100% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Airbridge Broadband | Fixed wireless, Fiber | 100% | 2,000/2,000 |
| Sparklight | Cable | 99% | 1,000/50 |
| First Step Internet | Fixed wireless, Fiber | 91% | 25/4 |
| CenturyLink | DSL, Fiber | 51% | 100/10 |
| Inland Cellular | Fixed wireless, Fiber | 21% | 1,000/1,000 |
| Verizon | Fixed wireless | 47% | 300/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
Trash day in Lewiston depends on your street
Pickup days, the drop-off and recycling in Lewiston, from the town’s own site.
Your pickup week
- TrashEvery week, on your street’s dayFind your street’s day on cityoflewiston.org →
Lewiston Transfer Station
- Mon8 am–4:30 pm
- Tue8 am–4:30 pm
- Wed8 am–4:30 pm
- Thu8 am–4:30 pm
- Fri8 am–4:30 pm
- Sat8 am–4:30 pm
Clearwater Composting
3956 Industrial Way
A&B Foods
8th St
From cityoflewiston.org, the town’s official site, checked Oct 21, 2026; pages dated October 1, 2025. Rules change: the town’s page is the last word. .
Where your child goes to school
Public school districts and the school path by grade.
Lewiston is in Lewiston Independent School District 340.
B+School gradeSee 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 Jun 2025; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Sep 12, 2025.
Lewiston is in ZIP code 83501
ZIP codes where Lewiston residents live, with the share of the town in each.
| ZIP | Post office name | Share of Lewiston | ZIP’s residents in Lewiston |
|---|---|---|---|
| 83501 | Lewiston, ID | 100% | 93% |
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 Lewiston
Who supplies Lewiston’s drinking water, and has it had violations?
The City of Lewiston water system (EPA ID ID2350014). It reported no health-based violations to EPA in the five years to October 2026; 83% of systems its size had none. Its latest lead 90th percentile was 0.0 ppb (Jan–Dec 2026), against a 15 ppb action level.
Who provides electricity in Lewiston?
Avista (Avista Corp.), an investor-owned utility. Its homes paid about 11.8¢ per kWh in 2025 (EIA).
What internet providers serve Lewiston?
Airbridge Broadband, Sparklight, First Step Internet, CenturyLink, Inland Cellular, Verizon (FCC, as of December 2025).
What ZIP codes are in Lewiston?
83501. Census 2020 ZIP Code Tabulation Areas.
What school district is Lewiston in?
Lewiston Independent School District 340.
How do I register to vote in Lewiston?
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 Nez Perce 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: Lewiston’s own website (cityoflewiston.org), read Oct 21, 2026, pickup and drop-off facts extracted and checked against the page they came from.
- 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.