Photo: Dwight Burdette · CC BY 3.0Living in Northfield Township, MI: what to set up and who to call
The Westbrook Apartments water system reported one health-based violation to EPA in the last five years: a lead and copper treatment requirement (Lead and Copper Rule Revisions), beginning Oct 2024. Voting is local here: the Northfield Township Clerk registers voters and runs elections, not the county.
I’m new in town
What to set up in Northfield Township, 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 Northfield Township.
Power comes from DTE
DTE (DTE Electric Co.), an investor-owned utility, serves all of Northfield Township. Its homes paid an average of 20.2¢ per kWh in 2025, about $126 a month (its average across Michigan, for customers on its standard service). Michigan lets you buy power from another supplier; 0% of DTE’s home customers do, and DTE still delivers it.
Start or move service: www.dteenergy.com · (800) 477-4747
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Westbrook Apartments water system
The Westbrook Apartments water system supplies Northfield Township: about 7% of residents live in its service area. Harbor Cove Apartments serves another 6%. Regency at Whitmore Lake serves another 6%. About 76% 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 330 people in all.
1 health-based violation reported to EPA in the five years to October 2026: a lead and copper treatment requirement (Lead and Copper Rule Revisions), beginning Oct 2024. 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 Jan 2022–Dec 2024, was 2.0 ppb, below the 15 ppb action level that applied. That’s higher than 70% 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. MI0007035.
6 home internet providers serve Northfield Township
98% of 3,470 addresses can get 100/20 Mbps; 14% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Spectrum | Cable, Fiber | 96% | 1,000/1,000 |
| AT&T | Fixed wireless, DSL, Fiber | 21% | 100/20 |
| Xfinity | Cable, Fiber | 3% | 2,000/2,000 |
| Mercury Fiber | Fixed wireless | 67% | 150/20 |
| T-Mobile | Fixed wireless | 67% | 100/20 |
| Verizon | Fixed wireless | 42% | 300/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
In Northfield Township, you hire your own trash hauler
Pickup days, the drop-off and recycling in Northfield Township, from the town’s own site.
We couldn’t find pickup days or drop-off hours. Check twp-northfield.org →
From twp-northfield.org, 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.
Most of Northfield Township (53%) is in Whitmore Lake Public Schools; parts are in South Lyon Community Schools (34%) and Ann Arbor Public Schools (11%).
ASchool 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.
Northfield Township spans 3 ZIP codes
ZIP codes where Northfield Township residents live, with the share of the town in each.
| ZIP | Post office name | Share of Northfield Township | ZIP’s residents in Northfield Township |
|---|---|---|---|
| 48189 | Whitmore Lake, MI | 73% | 44% |
| 48105 | Ann Arbor, MI | 16% | 3% |
| 48178 | South Lyon, MI | 12% | 3% |
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 Northfield Township
Who supplies Northfield Township’s drinking water, and has it had violations?
The Westbrook Apartments water system (EPA ID MI0007035). It reported 1 health-based violation to EPA in the five years to October 2026: a lead and copper treatment requirement (Lead and Copper Rule Revisions). 77% of systems its size had none. Its latest lead 90th percentile was 2.0 ppb (Jan 2022–Dec 2024), against a 15 ppb action level.
Who provides electricity in Northfield Township?
DTE (DTE Electric Co.), an investor-owned utility. Its homes paid about 20.2¢ per kWh in 2025 (EIA).
What internet providers serve Northfield Township?
Spectrum, AT&T, Xfinity, Mercury Fiber, T-Mobile, Verizon (FCC, as of December 2025).
What ZIP codes are in Northfield Township?
48189 (73%), 48105 (16%), 48178 (12%), by share of residents. Census 2020 ZIP Code Tabulation Areas.
What school district is Northfield Township in?
Whitmore Lake Public Schools. Parts of the city are in South Lyon Community Schools and Ann Arbor Public Schools.
How do I register to vote in Northfield Township?
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 Northfield Township 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: Northfield Township’s own website (twp-northfield.org), 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 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.