Photo: Myotus · CC BY 4.0Living in Watertown, MN: what to set up and who to call
Every home in Watertown is in ZIP code 55388. Public schools here are run by Watertown-Mayer Public School District.
I’m new in town
What to set up in Watertown, 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 Watertown.
Power comes from Xcel Energy
Xcel Energy (Northern States Power Co. (Minnesota)), an investor-owned utility, serves all of Watertown. Its homes paid an average of 17.1¢ per kWh in 2025, about $105 a month (its average across Minnesota).
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Watertown
Watertown supplies almost all of Watertown. It draws ground water and serves 4,550 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 80% of the 5,012 systems serving 3,301–10,000 people.
The latest lead result on file, the 90th percentile of homes sampled in Jan–Dec 2025, was 4.0 ppb, below the 15 ppb action level that applied. That’s higher than 87% 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. MN1100012.
7 home internet providers serve Watertown
100% of 1,782 addresses can get 100/20 Mbps; 85% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Spectrum | Cable, Fiber | 96% | 1,000/35 |
| Metronet | Fiber | 85% | 5,120/5,120 |
| Frontier | DSL, Fiber | 83% | 115/7 |
| GigFire | Fixed wireless | 89% | 150/130 |
| AT&T | Fixed wireless | 80% | 100/20 |
| T-Mobile | Fixed wireless | 76% | 100/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
Trash and recycling in Watertown
Pickup days, the drop-off and recycling in Watertown, from the town’s own site.
Watertown Yard Waste Site (Compost Site)
- Mon3 pm–8 pm
- Thu3 pm–8 pm
- Sat8 am–1 pm
Minnesota Topsoil
4220 County Road 10
From watertownmn.gov, the town’s official site, checked Oct 21, 2026. Rules change: the town’s page is the last word. .
Where your child goes to school
Public school districts and the school path by grade.
Watertown is in Watertown-Mayer Public 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 Jun 2025; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
Watertown is in ZIP code 55388
ZIP codes where Watertown residents live, with the share of the town in each.
| ZIP | Post office name | Share of Watertown | ZIP’s residents in Watertown |
|---|---|---|---|
| 55388 | Watertown, MN | 100% | 78% |
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 Watertown
Who supplies Watertown’s drinking water, and has it had violations?
Watertown (EPA ID MN1100012). It reported no health-based violations to EPA in the five years to October 2026; 80% of systems its size had none. Its latest lead 90th percentile was 4.0 ppb (Jan–Dec 2025), against a 15 ppb action level.
Who provides electricity in Watertown?
Xcel Energy (Northern States Power Co. (Minnesota)), an investor-owned utility. Its homes paid about 17.1¢ per kWh in 2025 (EIA).
What internet providers serve Watertown?
Spectrum, Metronet, Frontier, GigFire, AT&T, T-Mobile (FCC, as of December 2025).
What ZIP codes are in Watertown?
55388. Census 2020 ZIP Code Tabulation Areas.
What school district is Watertown in?
Watertown-Mayer Public School District.
How do I register to vote in Watertown?
In Minnesota you can register online until 21 days before Election Day, in person up to and including Election Day, or by mail (received 21 days before). Elections here are run by the Carver County Government Center - Administration Bldg. Check your registration at mnvotes.sos.state.mn.us.
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: Watertown’s own website (watertownmn.gov), read Oct 21, 2026, pickup and drop-off facts extracted and checked against the page they came from.
- 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.