Living in St. Clair, MN: what to set up and who to call
The Saint Clair water system has a clean five-year EPA record, but its latest lead result, 6.0 ppb, was higher than 94% of similar systems’ (the action level is 15). Blue Earth County Library, 9.1 miles away, is the closest library to St. Clair.
I’m new in town
What to set up in St. Clair, 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 St. Clair.
Power comes from Xcel Energy
Xcel Energy (Northern States Power Co. (Minnesota)), an investor-owned utility, serves all of St. Clair. 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 Saint Clair water system
The Saint Clair water system supplies St. Clair: about 96% of residents live in its service area. About 4% 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 846 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 78% of the 5,327 systems serving 501–1,000 people.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2024–Dec 2026, was 6.0 ppb, below the 15 ppb action level that applied. That’s higher than 94% 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. MN1070017.
4 home internet providers serve St. Clair
100% of 303 addresses can get 100/20 Mbps; 0% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Midco | Cable, Fixed wireless | 100% | 2,000/350 |
| Consolidated Communications | DSL | 77% | 100/10 |
| GigFire | Fixed wireless | 100% | 150/130 |
| AT&T | Fixed wireless | 20% | 25/3 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have St. Clair’s trash rules yet
Pickup rules, the dump and recycling in St. Clair.
Where your child goes to school
Public school districts and the school path by grade.
St. Clair is in St. Clair Public 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 Jun 2025; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
St. Clair spans 2 ZIP codes
ZIP codes where St. Clair residents live, with the share of the town in each.
| ZIP | Post office name | Share of St. Clair | ZIP’s residents in St. Clair |
|---|---|---|---|
| 56080 | Saint Clair, MN | 97% | 100% |
| 56001 | Mankato, MN | 2% | 0% |
A few homes fall in 56048.
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 St. Clair
Who supplies St. Clair’s drinking water, and has it had violations?
The Saint Clair water system (EPA ID MN1070017). It reported no health-based violations to EPA in the five years to October 2026; 78% of systems its size had none. Its latest lead 90th percentile was 6.0 ppb (Jan 2024–Dec 2026), against a 15 ppb action level.
Who provides electricity in St. Clair?
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 St. Clair?
Midco, Consolidated Communications, GigFire, AT&T (FCC, as of December 2025).
What ZIP codes are in St. Clair?
56080 (97%), 56001 (2%), by share of residents. Census 2020 ZIP Code Tabulation Areas.
What school district is St. Clair in?
St. Clair Public School District.
How do I register to vote in St. Clair?
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 Blue Earth County Elections. 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: 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.