Fuhremann Canning Company Factory · Photo: Corey Coyle · CC BY 3.0Living in Sun Prairie, WI: what to set up and who to call
Sun Prairie runs its own electric utility, Sun Prairie Utilities; its homes paid 12.1¢ per kWh in 2025. Sun Prairie Utilities reported one health-based violation to EPA in the last five years: fluoride, beginning Jan 2023.
I’m new in town
What to set up in Sun Prairie, 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 Sun Prairie.
Power comes from Sun Prairie Utilities
Sun Prairie Utilities (Sun Prairie Utilities), a municipal utility, serves all of Sun Prairie. Its homes paid an average of 12.1¢ per kWh in 2025, about $74 a month (its average across Wisconsin).
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Sun Prairie Utilities
Sun Prairie Utilities supplies almost all of Sun Prairie. It draws ground water and serves 39,300 people in all.
1 health-based violation reported to EPA in the five years to October 2026: fluoride, beginning Jan 2023. 83% of the 3,525 systems serving 10,001–50,000 people had none.
The latest lead result on file, the 90th percentile of homes sampled in Jun–Sep 2023, was 2.8 ppb, below the 15 ppb action level that applied. That’s higher than 78% 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 (EPA’s estimate). Violations are counted by the start of their compliance period. WI1130258.
9 home internet providers serve Sun Prairie
100% of 9,437 addresses can get 100/20 Mbps; 99% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| TDS Telecom | Fiber | 100% | 8,000/8,000 |
| Spectrum | Cable, Fiber | 98% | 1,000/35 |
| Frontier | Fiber, DSL | 70% | 7,000/7,000 |
| T-Mobile | Fixed wireless | 79% | 100/20 |
| Verizon | Fixed wireless | 71% | 300/20 |
| Bertram Communications | Fixed wireless | 42% | 100/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
Sun Prairie has its own drop-off: Sun Prairie Recycling Center
Where to take trash and recycling in Sun Prairie, and where the rules are.
Sun Prairie Recycling Center
Before you go, check the rules with the town.
OpenStreetMap, as of Oct 9, 2026 (last edited Apr 2026). © OpenStreetMap contributors.
Where your child goes to school
Public school districts and the school path by grade.
Sun Prairie is in Sun Prairie Area School District.
BSchool 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 Apr 2026; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
Sun Prairie is in ZIP code 53590
ZIP codes where Sun Prairie residents live, with the share of the town in each.
| ZIP | Post office name | Share of Sun Prairie | ZIP’s residents in Sun Prairie |
|---|---|---|---|
| 53590 | Sun Prairie, WI | 100% | 82% |
53596 is P.O. box or single-organization ZIP with no homes.
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 Sun Prairie
Who supplies Sun Prairie’s drinking water, and has it had violations?
Sun Prairie Utilities (EPA ID WI1130258). It reported 1 health-based violation to EPA in the five years to October 2026: fluoride. 83% of systems its size had none. Its latest lead 90th percentile was 2.8 ppb (Jun–Sep 2023), against a 15 ppb action level.
Who provides electricity in Sun Prairie?
Sun Prairie Utilities (Sun Prairie Utilities), a municipal utility. Its homes paid about 12.1¢ per kWh in 2025 (EIA).
What internet providers serve Sun Prairie?
TDS Telecom, Spectrum, Frontier, T-Mobile, Verizon, Bertram Communications (FCC, as of December 2025).
What ZIP codes are in Sun Prairie?
53590. Census 2020 ZIP Code Tabulation Areas.
What school district is Sun Prairie in?
Sun Prairie Area School District.
How do I register to vote in Sun Prairie?
In Wisconsin you can register online until 20 days before Election Day, in person up to and including Election Day, or by mail (postmarked 20 days before). Elections here are run by the City of Sun Prairie Clerk. Check your registration at myvote.wi.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.