Living in Union, WI: what to set up and who to call
Union runs its own elections, so the Town of Union Clerk, not a county office, keeps the voter rolls. Children in Union attend Plum City School District.
I’m new in town
What to set up in Union, 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 Union.
Power comes from Xcel Energy
Xcel Energy (Northern States Power Co. (Wisconsin)), an investor-owned utility, serves all of Union. Its homes paid an average of 15.6¢ per kWh in 2025, about $113 a month (its average across Wisconsin).
Start or move service: xcelenergy.com · (800) 895-2999
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Plum City Care Center Nursing Home water system
The Plum City Care Center Nursing Home water system supplies Union: 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 120 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 77% of the 15,074 systems serving 101–500 people.
The latest lead result on file, the 90th percentile of homes sampled in Jun–Sep 2022, was 3.0 ppb, below the 15 ppb action level that applied. That’s higher than 81% 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. WI6480372.
6 home internet providers serve Union
87% of 276 addresses can get 100/20 Mbps; 86% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Swiftcurrent Connect | Fiber | 72% | 2,000/2,000 |
| CenturyLink | DSL | 11% | 40/3 |
| Nelson Communications Cooperative | Fiber | 11% | 1,000/1,000 |
| 24-7 Telcom | Fiber | 2% | 1,000/1,000 |
| Ntec | Cable | 2% | 250/50 |
| HBC | Fixed wireless | 63% | 100/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Union’s trash rules yet
Pickup rules, the dump and recycling in Union.
Where your child goes to school
Public school districts and the school path by grade.
Union is in Plum City School District.
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 May 2026; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
Union spans 3 ZIP codes
ZIP codes where Union residents live, with the share of the town in each.
| ZIP | Post office name | Share of Union | ZIP’s residents in Union |
|---|---|---|---|
| 54761 | Plum City, WI | 74% | 37% |
| 54750 | Maiden Rock, WI | 25% | 14% |
| 54721 | Arkansaw, WI | 1% | 1% |
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 Union
Who supplies Union’s drinking water, and has it had violations?
The Plum City Care Center Nursing Home water system (EPA ID WI6480372). It reported no health-based violations to EPA in the five years to October 2026; 77% of systems its size had none. Its latest lead 90th percentile was 3.0 ppb (Jun–Sep 2022), against a 15 ppb action level.
Who provides electricity in Union?
Xcel Energy (Northern States Power Co. (Wisconsin)), an investor-owned utility. Its homes paid about 15.6¢ per kWh in 2025 (EIA).
What internet providers serve Union?
Swiftcurrent Connect, CenturyLink, Nelson Communications Cooperative, 24-7 Telcom, Ntec, HBC (FCC, as of December 2025).
What ZIP codes are in Union?
54761 (74%), 54750 (25%), 54721 (1%), by share of residents. Census 2020 ZIP Code Tabulation Areas.
What school district is Union in?
Plum City School District.
How do I register to vote in Union?
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 Union 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.