Photo: Corey Coyle · CC BY 3.0Living in Cottage Grove, WI: what to set up and who to call
Cottage Grove Waterworks 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 Village of Cottage Grove Clerk registers voters and runs elections, not the county.
I’m new in town
What to set up in Cottage Grove, 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 Cottage Grove.
Power comes from Wisconsin Power & Light
Wisconsin Power & Light (Wisconsin Power & Light Co), an investor-owned utility, serves all of Cottage Grove. Its homes paid an average of 18.5¢ per kWh in 2025, about $128 a month (its average across Wisconsin).
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Cottage Grove Waterworks
Cottage Grove Waterworks supplies almost all of Cottage Grove. It draws ground water and serves 9,345 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. 80% of the 5,012 systems serving 3,301–10,000 people had none.
The latest lead result on file, the 90th percentile of homes sampled in Jun–Sep 2023, was 2.3 ppb, below the 15 ppb action level that applied. That’s higher than 75% 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. WI1130218.
10 home internet providers serve Cottage Grove
100% of 2,191 addresses can get 100/20 Mbps; 100% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| TDS Telecom | Fiber | 99% | 8,000/8,000 |
| Spectrum | Cable, Fiber | 97% | 1,000/35 |
| AT&T | Fixed wireless, DSL | 76% | 25/3 |
| Frontier | DSL | 41% | 10/1 |
| Verizon | Fixed wireless | 96% | 300/20 |
| UpNetWI | Fixed wireless | 54% | 100/30 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
Trash day in Cottage Grove is Monday or Tuesday, depending on your street
Pickup days, the drop-off and recycling in Cottage Grove, from the town’s own site and the hauler or county pages it links to.
Your pickup week
- TrashEvery week, on your street’s day (Mon or Tue)
- RecyclingEvery other weekCheck which week on vi.cottagegrove.wi.gov →
- Bulky itemsCall to book
Accepted at the curb
- Cardboard (empty)
- Catalogs, magazines & phone books
- Cereal & cracker boxes (empty)
- Envelopes & junk mail
- Newspapers
- Pizza boxes (empty)
- Paper milk and juice cartons or boxes
- Plastic containers/cups #1-7
- All plastic bottles
- Glass bottles & jars
From vi.cottagegrove.wi.gov, the town’s official site; pellitteri.com, which village.cottage-grove.wi.us links to for trash, checked Oct 21, 2026; pages dated 2026, 2026-09-27, September 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 Cottage Grove (89%) is in Monona Grove School District; parts are in Sun Prairie Area School District (11%).
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 May 2026; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
Cottage Grove is in ZIP code 53527
ZIP codes where Cottage Grove residents live, with the share of the town in each.
| ZIP | Post office name | Share of Cottage Grove | ZIP’s residents in Cottage Grove |
|---|---|---|---|
| 53527 | Cottage Grove, WI | 100% | 66% |
A few homes fall in 53590.
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 Cottage Grove
Who supplies Cottage Grove’s drinking water, and has it had violations?
Cottage Grove Waterworks (EPA ID WI1130218). 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). 80% of systems its size had none. Its latest lead 90th percentile was 2.3 ppb (Jun–Sep 2023), against a 15 ppb action level.
Who provides electricity in Cottage Grove?
Wisconsin Power & Light (Wisconsin Power & Light Co), an investor-owned utility. Its homes paid about 18.5¢ per kWh in 2025 (EIA).
What internet providers serve Cottage Grove?
TDS Telecom, Spectrum, AT&T, Frontier, Verizon, UpNetWI (FCC, as of December 2025).
What ZIP codes are in Cottage Grove?
53527. Census 2020 ZIP Code Tabulation Areas.
What school district is Cottage Grove in?
Monona Grove School District. Parts of the city are in Sun Prairie Area School District.
How do I register to vote in Cottage Grove?
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 Village of Cottage Grove 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: Cottage Grove’s own website (vi.cottagegrove.wi.gov) and the hauler or county pages it links to (pellitteri.com), 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.