Photo: Idawriter · CC BY-SA 3.0Living in Eagle Butte, SD: what to set up and who to call
The Eagle Butte water system reported one health-based violation to EPA in the last five years: a bacteria testing requirement (Revised Total Coliform Rule), beginning Nov 2024. Power in Eagle Butte comes from Moreau-Grand Electric Coop, a cooperative utility rather than a private company.
I’m new in town
What to set up in Eagle Butte, 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 Eagle Butte.
Power comes from Moreau-Grand Electric Coop
Moreau-Grand Electric Coop (Moreau-Grand Electric Coop Inc), a cooperative utility, serves all of Eagle Butte.
Start or move service: mge.coop · (605) 865-3511
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Eagle Butte water system
The Eagle Butte water system supplies Eagle Butte: about 93% of residents live in its service area. Tri-County Rural Water System serves another 8%. It buys treated surface water (EPA lists Tri-County Rural Water System as seller) and serves 4,000 people in all.
1 health-based violation reported to EPA in the five years to October 2026: a bacteria testing requirement (Revised Total Coliform Rule), beginning Nov 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–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 (EPA’s estimate). Violations are counted by the start of their compliance period. SD4600010.
1 home internet providers serve Eagle Butte
100% of 426 addresses can get 100/20 Mbps; 100% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| CRST Telephone Authority | Fiber | 100% | 250/100 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Eagle Butte’s trash rules yet
Pickup rules, the dump and recycling in Eagle Butte.
Where your child goes to school
Public school districts and the school path by grade.
Eagle Butte is in Eagle Butte School District 20-1.
D−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 Jul 2023; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Aug 3, 2026.
Eagle Butte is in ZIP code 57625
ZIP codes where Eagle Butte residents live, with the share of the town in each.
| ZIP | Post office name | Share of Eagle Butte | ZIP’s residents in Eagle Butte |
|---|---|---|---|
| 57625 | Eagle Butte, SD | 100% | 31% |
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 Eagle Butte
Who supplies Eagle Butte’s drinking water, and has it had violations?
The Eagle Butte water system (EPA ID SD4600010). It reported 1 health-based violation to EPA in the five years to October 2026: a bacteria testing requirement (Revised Total Coliform Rule). 80% of systems its size had none. Its latest lead 90th percentile was 0.0 ppb (Jan–Dec 2023), against a 15 ppb action level.
Who provides electricity in Eagle Butte?
Moreau-Grand Electric Coop (Moreau-Grand Electric Coop Inc), a cooperative utility.
What internet providers serve Eagle Butte?
CRST Telephone Authority (FCC, as of December 2025).
What ZIP codes are in Eagle Butte?
57625. Census 2020 ZIP Code Tabulation Areas.
What school district is Eagle Butte in?
Eagle Butte School District 20-1.
How do I register to vote in Eagle Butte?
South Dakota has no online registration; you can register in person until 15 days before Election Day or by mail (received 15 days before). Elections here are run by the Dewey County Auditor. Check your registration at vip.sdsos.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 Aug 3, 2026 (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.