Photo: daBinsi · CC BY 2.0Living in Corunna, MI: what to set up and who to call
Tap water in most of Corunna comes from the City of Corunna water system, which has a clean five-year EPA record (about 22% of systems its size had a health-based violation) and a latest lead result below detection. To register to vote, go to the Corunna City Clerk: Corunna runs its own elections.
I’m new in town
What to set up in Corunna, 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 Corunna.
Power comes from Consumers Energy
Consumers Energy (Consumers Energy Co.), an investor-owned utility, serves all of Corunna. Its homes paid an average of 20.7¢ per kWh in 2025, about $134 a month (its average across Michigan).
Start or move service: consumersenergy.com · (800) 477-5050
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from City of Corunna water system
The City of Corunna water system supplies Corunna: about 81% of residents live in its service area. About 19% of homes are outside any mapped community water system, most likely on private wells, which EPA doesn’t regulate. It buys treated ground water (EPA lists City of Owosso as seller) and serves 2,028 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 78% of the 7,966 systems serving 1,001–3,300 people.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2022–Dec 2024, was 0.0 ppb, below the 15 ppb action level that applied. Results below detection are reported as 0, so 0 doesn’t mean no lead at any tap.
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. MI0001640.
6 home internet providers serve Corunna
97% of 1,043 addresses can get 100/20 Mbps; 52% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Spectrum | Cable, Fiber | 95% | 1,000/50 |
| Frontier | DSL, Fiber | 62% | 7,000/7,000 |
| DayStarr | Fiber | 55% | 1,000/1,000 |
| Verizon | Fixed wireless | 35% | 25/6 |
| AT&T | Fixed wireless | 28% | 25/3 |
| T-Mobile | Fixed wireless | 8% | 25/3 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Corunna’s trash rules yet
Pickup rules, the dump and recycling in Corunna.
Where your child goes to school
Public school districts and the school path by grade.
Corunna is in Corunna Public 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 Nov 2025; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Sep 12, 2025.
Corunna is in ZIP code 48817
ZIP codes where Corunna residents live, with the share of the town in each.
| ZIP | Post office name | Share of Corunna | ZIP’s residents in Corunna |
|---|---|---|---|
| 48817 | Corunna, MI | 100% | 53% |
A few homes fall in 48867.
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 Corunna
Who supplies Corunna’s drinking water, and has it had violations?
The City of Corunna water system (EPA ID MI0001640). 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 0.0 ppb (Jan 2022–Dec 2024), against a 15 ppb action level.
Who provides electricity in Corunna?
Consumers Energy (Consumers Energy Co.), an investor-owned utility. Its homes paid about 20.7¢ per kWh in 2025 (EIA).
What internet providers serve Corunna?
Spectrum, Frontier, DayStarr, Verizon, AT&T, T-Mobile (FCC, as of December 2025).
What ZIP codes are in Corunna?
48817. Census 2020 ZIP Code Tabulation Areas.
What school district is Corunna in?
Corunna Public School District.
How do I register to vote in Corunna?
In Michigan you can register online until 15 days before Election Day, in person up to and including Election Day, or by mail (postmarked 15 days before). Elections here are run by the Corunna City Clerk. Check your registration at mvic.sos.state.mi.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 Sep 12, 2025 (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.