Living in Arapahoe, WY: what to set up and who to call
Arapahoe has no town government of its own, so Fremont County runs its elections and most services, and its children attend Fremont County School District 38. Tap water in Arapahoe comes from Arapahoe Comm Water System, which has a clean five-year EPA record (about 20% of systems its size had a health-based violation) and a latest lead result below detection.
I’m new in town
What to set up in Arapahoe, 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 Arapahoe.
Power comes from High Plains Power
High Plains Power (High Plains Power Inc), a cooperative utility, serves 85.5% of Arapahoe residents. Its homes paid an average of 14.2¢ per kWh in 2025, about $135 a month (its average across Wyoming).
Start or move service: www.highplainspower.org · (307) 455-2475
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Arapahoe Comm Water System
Arapahoe Comm Water System supplies Arapahoe: about 91% of residents live in its service area. About 9% of homes are outside any mapped community water system, most likely on private wells, which EPA doesn’t regulate. It draws ground water and serves 4,100 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 80% of the 5,012 systems serving 3,301–10,000 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. 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. 085690004.
5 home internet providers serve Arapahoe
84% of 503 addresses can get 100/20 Mbps; 70% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Wind River Internet | Fixed wireless, Fiber | 96% | 10,000/10,000 |
| Wyoming.com | Fixed wireless | 88% | 200/100 |
| Verizon | Fixed wireless | 74% | 300/20 |
| Visionary Broadband | Fixed wireless | 39% | 100/20 |
| T-Mobile | Fixed wireless | 5% | 25/3 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Arapahoe’s trash rules yet
Pickup rules, the dump and recycling in Arapahoe.
Where your child goes to school
Public school districts and the school path by grade.
Most of Arapahoe (89%) is in Fremont County School District 38; parts are in Fremont County School District 25 (11%).
D−School gradeSee 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
Arapahoe is unincorporated, so Fremont 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.
Arapahoe spans 2 ZIP codes
ZIP codes where Arapahoe residents live, with the share of the town in each.
| ZIP | Post office name | Share of Arapahoe | ZIP’s residents in Arapahoe |
|---|---|---|---|
| 82501 | Riverton, WY | 58% | 5% |
| 82510 | Arapahoe, WY | 42% | 55% |
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 Arapahoe
Who supplies Arapahoe’s drinking water, and has it had violations?
Arapahoe Comm Water System (EPA ID 085690004). It reported no health-based violations to EPA in the five years to October 2026; 80% 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 Arapahoe?
High Plains Power (High Plains Power Inc), a cooperative utility. Its homes paid about 14.2¢ per kWh in 2025 (EIA).
What internet providers serve Arapahoe?
Wind River Internet, Wyoming.com, Verizon, Visionary Broadband, T-Mobile (FCC, as of December 2025).
What ZIP codes are in Arapahoe?
82501 (58%), 82510 (42%), by share of residents. Census 2020 ZIP Code Tabulation Areas.
What school district is Arapahoe in?
Fremont County School District 38. Parts of the city are in Fremont County School District 25.
How do I register to vote in Arapahoe?
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 Fremont 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.