Photo: Jon Roanhaus · CC BY-SA 4.0Living in Big Horn, WY: what to set up and who to call
Big Horn has no town government of its own, so Sheridan County runs its elections and most services, and its children attend Sheridan County School District 1. Visionary Broadband and Spectrum both wire most of Big Horn; 44% of addresses can get fiber.
I’m new in town
What to set up in Big Horn, 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 Big Horn.
Power comes from Montana-Dakota Utilities
Montana-Dakota Utilities (Montana-Dakota Utilities Co), an investor-owned utility, serves all of Big Horn. Its homes paid an average of 12.0¢ per kWh in 2025, about $101 a month (its average across Wyoming).
Start or move service: montana-dakota.com · (800) 638-3278
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from City of Sheridan water system
The City of Sheridan water system supplies almost all of Big Horn. It draws surface water and serves 22,700 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 2021–Dec 2023, was 0.0 ppb, below the 15 ppb action level that applied. 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. Violations are counted by the start of their compliance period. WY5600052.
5 home internet providers serve Big Horn
100% of 214 addresses can get 100/20 Mbps; 44% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Visionary Broadband | Fixed wireless, Fiber | 100% | 5,000/5,000 |
| Spectrum | Cable | 64% | 1,000/1,000 |
| CenturyLink | DSL | 56% | 60/5 |
| Advanced Communications Technology | Fixed wireless | 38% | 50/50 |
| Verizon | Fixed wireless | 17% | 300/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Big Horn’s trash rules yet
Pickup rules, the dump and recycling in Big Horn.
Where your child goes to school
Public school districts and the school path by grade.
Big Horn is in Sheridan County School District 1.
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
Big Horn is unincorporated, so Sheridan County is the local government.
Election office: FVAP local election office directory, updated Jun 2025; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
Big Horn spans 2 ZIP codes
ZIP codes where Big Horn residents live, with the share of the town in each.
| ZIP | Post office name | Share of Big Horn | ZIP’s residents in Big Horn |
|---|---|---|---|
| 82833 | Big Horn, WY | 58% | 51% |
| 82801 | Sheridan, WY | 42% | 1% |
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 Big Horn
Who supplies Big Horn’s drinking water, and has it had violations?
The City of Sheridan water system (EPA ID WY5600052). 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 2021–Dec 2023), against a 15 ppb action level.
Who provides electricity in Big Horn?
Montana-Dakota Utilities (Montana-Dakota Utilities Co), an investor-owned utility. Its homes paid about 12.0¢ per kWh in 2025 (EIA).
What internet providers serve Big Horn?
Visionary Broadband, Spectrum, CenturyLink, Advanced Communications Technology, Verizon (FCC, as of December 2025).
What ZIP codes are in Big Horn?
82833 (58%), 82801 (42%), by share of residents. Census 2020 ZIP Code Tabulation Areas.
What school district is Big Horn in?
Sheridan County School District 1.
How do I register to vote in Big Horn?
Wyoming has no online registration; you can register in person up to and including Election Day or by mail (received 14 days before). Elections here are run by the Sheridan County Clerk. Check your registration at sos.wyo.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.