CQA Four Mile Bridge · Photo: Clayton B. Fraser · Public domainLiving in East Thermopolis, WY: what to set up and who to call
Tap water in most of East Thermopolis comes from the Town of East Thermopolis 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 below detection. Hot Springs County Library, 0.6 miles away, is the closest library to East Thermopolis.
I’m new in town
What to set up in East Thermopolis, 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 East Thermopolis.
Power comes from Rocky Mountain Power
Rocky Mountain Power (PacifiCorp), an investor-owned utility, serves all of East Thermopolis. Its homes paid an average of 15.1¢ per kWh in 2025, about $107 a month (its average across Wyoming).
Start or move service: pacificorp.com · (888) 221-7070
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Town of East Thermopolis water system
The Town of East Thermopolis water system supplies East Thermopolis: 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 buys treated surface water (EPA lists Town of Thermopolis as seller) and serves 254 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 2022–Dec 2024, was 0.0 ppb, below the 15 ppb action level that applied. The highest in five years was 2.0 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. Violations are counted by the start of their compliance period. WY5600226.
4 home internet providers serve East Thermopolis
100% of 128 addresses can get 100/20 Mbps; 100% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| RT Communications | Fiber, Fixed wireless | 100% | 1,000/1,000 |
| Spectrum | Cable | 96% | 1,000/1,000 |
| TCT Internet | Fixed wireless | 95% | 50/10 |
| T-Mobile | Fixed wireless | 85% | 25/3 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have East Thermopolis’ trash rules yet
Pickup rules, the dump and recycling in East Thermopolis.
Where your child goes to school
Public school districts and the school path by grade.
East Thermopolis is in Hot Springs 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.
Town hall and registering to vote
Who to call, and how to register.
Election office: FVAP local election office directory, updated Sep 2021; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
East Thermopolis is in ZIP code 82443
ZIP codes where East Thermopolis residents live, with the share of the town in each.
| ZIP | Post office name | Share of East Thermopolis | ZIP’s residents in East Thermopolis |
|---|---|---|---|
| 82443 | Thermopolis, WY | 100% | 5% |
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 East Thermopolis
Who supplies East Thermopolis’ drinking water, and has it had violations?
The Town of East Thermopolis water system (EPA ID WY5600226). 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 0.0 ppb (Jan 2022–Dec 2024), against a 15 ppb action level.
Who provides electricity in East Thermopolis?
Rocky Mountain Power (PacifiCorp), an investor-owned utility. Its homes paid about 15.1¢ per kWh in 2025 (EIA).
What internet providers serve East Thermopolis?
RT Communications, Spectrum, TCT Internet, T-Mobile (FCC, as of December 2025).
What ZIP codes are in East Thermopolis?
82443. Census 2020 ZIP Code Tabulation Areas.
What school district is East Thermopolis in?
Hot Springs County School District 1.
How do I register to vote in East Thermopolis?
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 Hot Springs 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.