Living in Summit Township, SD: what to set up and who to call
The Summit water system reported 2 health-based violations to EPA in the last five years: a disinfection byproducts requirement (Stage 1 Disinfectants and Disinfection Byproducts Rule) ×2. 77% of systems its size reported none. The ER is a drive from Summit Township: the closest is Coteau Des Prairies Health Care System, 21.6 miles away.
I’m new in town
What to set up in Summit Township, 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 Summit Township.
Power comes from Otter Tail Power
Otter Tail Power (Otter Tail Power Co), an investor-owned utility, serves all of Summit Township. Its homes paid an average of 11.4¢ per kWh in 2025, about $123 a month (its average across South Dakota).
Start or move service: ottertail.com · (866) 410-8780
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Summit water system
The Summit water system supplies Summit Township: about 0% of residents live in its service area. About 100% 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 288 people in all.
2 health-based violations reported to EPA in the five years to October 2026: a disinfection byproducts requirement (Stage 1 Disinfectants and Disinfection Byproducts Rule) ×2, the latest beginning Nov 2023. 77% of the 15,074 systems serving 101–500 people had none.
The latest lead result on file, the 90th percentile of homes sampled in Jan–Dec 2024, was 2.0 ppb, below the 15 ppb action level that applied. The highest in five years was 3.0 ppb. That’s higher than 70% 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. SD4600326.
2 home internet providers serve Summit Township
100% of 15 addresses can get 100/20 Mbps; 100% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| RCTech | Fiber | 100% | 1,500/1,500 |
| T-Mobile | Fixed wireless | 27% | 100/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Summit Township’s trash rules yet
Pickup rules, the dump and recycling in Summit Township.
Where your child goes to school
Public school districts and the school path by grade.
Summit Township is in Summit School District 54-6.
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 Aug 2025; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Aug 3, 2026.
Summit Township is in ZIP code 57266
ZIP codes where Summit Township residents live, with the share of the town in each.
| ZIP | Post office name | Share of Summit Township | ZIP’s residents in Summit Township |
|---|---|---|---|
| 57266 | Summit, SD | 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 Summit Township
Who supplies Summit Township’s drinking water, and has it had violations?
The Summit water system (EPA ID SD4600326). It reported 2 health-based violations to EPA in the five years to October 2026: a disinfection byproducts requirement (Stage 1 Disinfectants and Disinfection Byproducts Rule) ×2. 77% of systems its size had none. Its latest lead 90th percentile was 2.0 ppb (Jan–Dec 2024), against a 15 ppb action level.
Who provides electricity in Summit Township?
Otter Tail Power (Otter Tail Power Co), an investor-owned utility. Its homes paid about 11.4¢ per kWh in 2025 (EIA).
What internet providers serve Summit Township?
RCTech, T-Mobile (FCC, as of December 2025).
What ZIP codes are in Summit Township?
57266. Census 2020 ZIP Code Tabulation Areas.
What school district is Summit Township in?
Summit School District 54-6.
How do I register to vote in Summit Township?
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 Roberts 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.