Photo: Ben Jacobson (Kranar Drogin) · CC BY 2.5Living in Grand Detour Township, IL: what to set up and who to call
Most mail in Grand Detour Township goes to 61021 (89% of residents), one of 2 ZIP codes in town. OSF Saint Katharine Medical Center, 5.6 miles away, is the nearest emergency room.
I’m new in town
What to set up in Grand Detour 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 Grand Detour Township.
Power comes from Commonwealth Edison
Commonwealth Edison (Commonwealth Edison Co), an investor-owned utility, serves all of Grand Detour Township. Its homes paid an average of 17.7¢ per kWh in 2025, about $107 a month (its average across Illinois, for customers on its standard service). Illinois lets you buy power from another supplier; 20% of Commonwealth Edison’s home customers do, and Commonwealth Edison still delivers it.
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Dixon Correctional Center water system
The Dixon Correctional Center water system supplies Grand Detour Township: about 15% of residents live in its service area. About 85% 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 1,038 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 2021–Dec 2023, 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. IL1035500.
Which providers serve Grand Detour Township
This card will list the home internet providers the FCC’s National Broadband Map shows in Grand Detour Township, the share of addresses that can get 100/20 Mbps and the share with fiber, with the map’s “as of” date.
Source to come: FCC Broadband Data Collection.
We don’t have Grand Detour Township’s trash rules yet
Pickup rules, the dump and recycling in Grand Detour Township.
Where your child goes to school
Public school districts and the school path by grade.
Most of Grand Detour Township (74%) is in Dixon Unit School District 170; parts are in Polo Community Unit School District 222 (15%) and Oregon Community Unit School District 220 (11%).
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 Sep 12, 2025.
Grand Detour Township spans 2 ZIP codes
ZIP codes where Grand Detour Township residents live, with the share of the town in each.
| ZIP | Post office name | Share of Grand Detour Township | ZIP’s residents in Grand Detour Township |
|---|---|---|---|
| 61021 | Dixon, IL | 89% | 3% |
| 61061 | Oregon, IL | 11% | 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 Grand Detour Township
Who supplies Grand Detour Township’s drinking water, and has it had violations?
The Dixon Correctional Center water system (EPA ID IL1035500). 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 2021–Dec 2023), against a 15 ppb action level.
Who provides electricity in Grand Detour Township?
Commonwealth Edison (Commonwealth Edison Co), an investor-owned utility. Its homes paid about 17.7¢ per kWh in 2025 (EIA).
What ZIP codes are in Grand Detour Township?
61021 (89%), 61061 (11%), by share of residents. Census 2020 ZIP Code Tabulation Areas.
What school district is Grand Detour Township in?
Dixon Unit School District 170. Parts of the city are in Polo Community Unit School District 222 and Oregon Community Unit School District 220.
How do I register to vote in Grand Detour Township?
In Illinois you can register online until 16 days before Election Day, in person up to and including Election Day, or by mail (postmarked 28 days before). Elections here are run by the Ogle County Clerk. Check your registration at ova.elections.il.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: 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): pending.