Living in Lake Koshkonong, WI: what to set up and who to call
Lake Koshkonong has no town government of its own, so Jefferson County runs its elections and most services, and its children attend Fort Atkinson School District. Edgerton Hospital and Health Services, 5.5 miles away, is the nearest emergency room.
I’m new in town
What to set up in Lake Koshkonong, 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 Lake Koshkonong.
Power comes from We Energies
We Energies (Wisconsin Electric Power Co.), an investor-owned utility, serves 73.9% of Lake Koshkonong residents. Its homes paid an average of 20.5¢ per kWh in 2025, about $131 a month (its average across Wisconsin).
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
11 home internet providers serve Lake Koshkonong
98% of 1,112 addresses can get 100/20 Mbps; 43% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Edge Broadband | Fixed wireless, Fiber | 84% | 1,000/1,000 |
| Spectrum | Cable, Fiber | 82% | 1,000/1,000 |
| Frontier | Fiber, DSL | 17% | 5,000/5,000 |
| Bug Tussel | Fixed wireless | 100% | 50/8 |
| LiteWire | Fixed wireless | 83% | 100/25 |
| Bertram Communications | Fixed wireless | 79% | 100/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Lake Koshkonong’s trash rules yet
Pickup rules, the dump and recycling in Lake Koshkonong.
Where your child goes to school
Public school districts and the school path by grade.
Most of Lake Koshkonong (90%) is in Fort Atkinson School District; parts are in Edgerton School District (10%).
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.
No town hall: the county runs things
Lake Koshkonong is unincorporated, so Jefferson County is the local government.
Election office: FVAP local election office directory, updated Jun 2023; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
Lake Koshkonong spans 3 ZIP codes
ZIP codes where Lake Koshkonong residents live, with the share of the town in each.
| ZIP | Post office name | Share of Lake Koshkonong | ZIP’s residents in Lake Koshkonong |
|---|---|---|---|
| 53538 | Fort Atkinson, WI | 78% | 5% |
| 53534 | Edgerton, WI | 13% | 1% |
| 53563 | Milton, WI | 9% | 1% |
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 Lake Koshkonong
Who provides electricity in Lake Koshkonong?
We Energies (Wisconsin Electric Power Co.), an investor-owned utility. Its homes paid about 20.5¢ per kWh in 2025 (EIA).
What internet providers serve Lake Koshkonong?
Edge Broadband, Spectrum, Frontier, Bug Tussel, LiteWire, Bertram Communications (FCC, as of December 2025).
What ZIP codes are in Lake Koshkonong?
53538 (78%), 53534 (13%), 53563 (9%), by share of residents. Census 2020 ZIP Code Tabulation Areas.
What school district is Lake Koshkonong in?
Fort Atkinson School District. Parts of the city are in Edgerton School District.
How do I register to vote in Lake Koshkonong?
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 Town of Koshkonong Clerk. Check your registration at myvote.wi.gov.
Sources & dates
Every answer above names its source. Here they are with their dates.
- 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.