Photo: Acroterion · CC BY-SA 4.0Living in Buffalo, WY: what to set up and who to call
The City of Buffalo water system reported 6 health-based violations to EPA in the last five years: disinfection byproducts (HAA5) ×6. 80% of systems its size reported none. Power in Buffalo comes from Powder River Energy, a cooperative utility rather than a private company.
I’m new in town
What to set up in Buffalo, 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 Buffalo.
Power comes from Powder River Energy
Powder River Energy (Powder River Energy Corp), a cooperative utility, serves all of Buffalo. Its homes paid an average of 12.2¢ per kWh in 2025, about $141 a month (its average across Wyoming).
Start or move service: precorp.coop · (800) 442-3630
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from City of Buffalo water system
The City of Buffalo water system supplies Buffalo: about 92% of residents live in its service area. About 8% 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 4,419 people in all.
6 health-based violations reported to EPA in the five years to October 2026: disinfection byproducts (HAA5) ×6, the latest beginning Jul 2024. 80% of the 5,012 systems serving 3,301–10,000 people had none.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2022–Dec 2024, was 2.0 ppb, below the 15 ppb action level that applied. That’s higher than 67% 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. Violations are counted by the start of their compliance period. WY5600005.
8 home internet providers serve Buffalo
99% of 2,153 addresses can get 100/20 Mbps; 13% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Visionary Broadband | Fixed wireless, Fiber | 100% | 100/20 |
| Spectrum | Cable, Fiber | 96% | 1,000/50 |
| CenturyLink | DSL | 33% | 10/1 |
| Advanced Communications Technology | Fiber | 5% | 1,000/1,000 |
| Collins Communications | Fixed wireless | 100% | 75/25 |
| T-Mobile | Fixed wireless | 80% | 100/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Buffalo’s trash rules yet
Pickup rules, the dump and recycling in Buffalo.
Where your child goes to school
Public school districts and the school path by grade.
Buffalo is in Johnson County School District 1.
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 Nov 18, 2024.
Buffalo is in ZIP code 82834
ZIP codes where Buffalo residents live, with the share of the town in each.
| ZIP | Post office name | Share of Buffalo | ZIP’s residents in Buffalo |
|---|---|---|---|
| 82834 | Buffalo, WY | 100% | 59% |
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 Buffalo
Who supplies Buffalo’s drinking water, and has it had violations?
The City of Buffalo water system (EPA ID WY5600005). It reported 6 health-based violations to EPA in the five years to October 2026: disinfection byproducts (HAA5) ×6. 80% of systems its size had none. Its latest lead 90th percentile was 2.0 ppb (Jan 2022–Dec 2024), against a 15 ppb action level.
Who provides electricity in Buffalo?
Powder River Energy (Powder River Energy Corp), a cooperative utility. Its homes paid about 12.2¢ per kWh in 2025 (EIA).
What internet providers serve Buffalo?
Visionary Broadband, Spectrum, CenturyLink, Advanced Communications Technology, Collins Communications, T-Mobile (FCC, as of December 2025).
What ZIP codes are in Buffalo?
82834. Census 2020 ZIP Code Tabulation Areas.
What school district is Buffalo in?
Johnson County School District 1.
How do I register to vote in Buffalo?
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 Johnson 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.