Comertown Historic District · Photo: Jon Roanhaus · CC BY-SA 4.0Living in Westby, MT: what to set up and who to call
Tap water in most of Westby comes from the Town of Westby water system, which has a clean five-year EPA record (about 23% of systems its size had a health-based violation) and a latest lead result of 1.0 ppb. Power in Westby comes from Sheridan Electric Coop, a cooperative utility rather than a private company.
I’m new in town
What to set up in Westby, 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 Westby.
Power comes from Sheridan Electric Coop
Sheridan Electric Coop (Sheridan Electric Coop, Inc), a cooperative utility, serves all of Westby.
Start or move service: sheridanelectric.coop · (406) 789-2231
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Town of Westby water system
The Town of Westby water system supplies Westby: about 76% of residents live in its service area. About 24% of homes are outside any mapped community water system, most likely on private wells, which EPA doesn’t regulate. It buys treated surface water (EPA lists Dry Prairie Rural Water Authority as seller) and serves 172 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 2023–Dec 2025, was 1.0 ppb, below the 15 ppb action level that applied. 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. MT0000355.
1 home internet providers serve Westby
100% of 120 addresses can get 100/20 Mbps; 40% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Nemont | Fixed wireless, DSL, Fiber | 100% | 1,000/1,000 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Westby’s trash rules yet
Pickup rules, the dump and recycling in Westby.
Where your child goes to school
Public school districts and the school path by grade.
Westby is in Westby K-12 Schools.
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 Nov 2022; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
Westby is in ZIP code 59275
ZIP codes where Westby residents live, with the share of the town in each.
| ZIP | Post office name | Share of Westby | ZIP’s residents in Westby |
|---|---|---|---|
| 59275 | Westby, MT | 100% | 50% |
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 Westby
Who supplies Westby’s drinking water, and has it had violations?
The Town of Westby water system (EPA ID MT0000355). 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 1.0 ppb (Jan 2023–Dec 2025), against a 15 ppb action level.
Who provides electricity in Westby?
Sheridan Electric Coop (Sheridan Electric Coop, Inc), a cooperative utility.
What internet providers serve Westby?
Nemont (FCC, as of December 2025).
What ZIP codes are in Westby?
59275. Census 2020 ZIP Code Tabulation Areas.
What school district is Westby in?
Westby K-12 Schools.
How do I register to vote in Westby?
Montana has no online registration; you can register in person up to and including Election Day or by mail (postmarked 30 days before). Elections here are run by the Sheridan County Election Administrator. Check your registration at prodvoterportal.mt.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 Nov 18, 2024 (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.