Living in Three Lakes, WI: what to set up and who to call
Three Lakes Sanitary District reported 2 health-based violations to EPA in the last five years: a lead and copper treatment requirement (Lead and Copper Rule Revisions), a groundwater treatment requirement (Groundwater Rule). 77% of systems its size reported none. Voting is local here: the Town of Three Lakes Clerk registers voters and runs elections, not the county.
I’m new in town
What to set up in Three Lakes, 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 Three Lakes.
Power comes from Wisconsin Public Service
Wisconsin Public Service (Wisconsin Public Service Corp), an investor-owned utility, serves all of Three Lakes. Its homes paid an average of 17.2¢ per kWh in 2025, about $106 a month (its average across Wisconsin).
Start or move service: wisconsinpublicservice.com · (800) 450-7260
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Three Lakes Sanitary District
Three Lakes Sanitary District supplies Three Lakes: about 10% of residents live in its service area. About 85% 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 500 people in all.
2 health-based violations reported to EPA in the five years to October 2026: a lead and copper treatment requirement (Lead and Copper Rule Revisions), a groundwater treatment requirement (Groundwater Rule), the latest beginning Jan 2025. 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 Jun–Sep 2023, was 11.2 ppb, below the 15 ppb action level that applied. That’s higher than 98% 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. WI7440129.
6 home internet providers serve Three Lakes
90% of 3,097 addresses can get 100/20 Mbps; 74% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Spectrum | Fiber, Cable | 87% | 1,000/1,000 |
| Frontier | DSL, Fiber | 52% | 70/3 |
| Bug Tussel | Fixed wireless | 99% | 50/8 |
| Verizon | Fixed wireless | 31% | 300/20 |
| T-Mobile | Fixed wireless | 11% | 100/20 |
| AT&T | Fixed wireless | 2% | 25/3 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Three Lakes’ trash rules yet
Pickup rules, the dump and recycling in Three Lakes.
Where your child goes to school
Public school districts and the school path by grade.
Three Lakes is in Three Lakes School District.
A−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 May 2026; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
Three Lakes spans 2 ZIP codes
ZIP codes where Three Lakes residents live, with the share of the town in each.
| ZIP | Post office name | Share of Three Lakes | ZIP’s residents in Three Lakes |
|---|---|---|---|
| 54562 | Three Lakes, WI | 83% | 95% |
| 54521 | Eagle River, WI | 17% | 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 Three Lakes
Who supplies Three Lakes’ drinking water, and has it had violations?
Three Lakes Sanitary District (EPA ID WI7440129). It reported 2 health-based violations to EPA in the five years to October 2026: a lead and copper treatment requirement (Lead and Copper Rule Revisions), a groundwater treatment requirement (Groundwater Rule). 77% of systems its size had none. Its latest lead 90th percentile was 11.2 ppb (Jun–Sep 2023), against a 15 ppb action level.
Who provides electricity in Three Lakes?
Wisconsin Public Service (Wisconsin Public Service Corp), an investor-owned utility. Its homes paid about 17.2¢ per kWh in 2025 (EIA).
What internet providers serve Three Lakes?
Spectrum, Frontier, Bug Tussel, Verizon, T-Mobile, AT&T (FCC, as of December 2025).
What ZIP codes are in Three Lakes?
54562 (83%), 54521 (17%), by share of residents. Census 2020 ZIP Code Tabulation Areas.
What school district is Three Lakes in?
Three Lakes School District.
How do I register to vote in Three Lakes?
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 Town of Three Lakes 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.