Photo: David Wilson · CC BY 2.0Living in Troy Grove Township, IL: what to set up and who to call
The Mendota water system has a clean five-year EPA record, but its latest lead result, 7.1 ppb, was higher than 96% of similar systems’ (the action level is 15). Two school districts split the grades in Troy Grove Township: Mendota Township High School District 280 and Mendota Community Consolidated School District 289.
I’m new in town
What to set up in Troy Grove 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 Troy Grove Township.
Power comes from Commonwealth Edison
Commonwealth Edison (Commonwealth Edison Co), an investor-owned utility, serves all of Troy Grove 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 Mendota water system
The Mendota water system supplies Troy Grove Township: about 40% of residents live in its service area. Mendota Estates MHP serves another 8%. About 52% 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 7,100 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 80% of the 5,012 systems serving 3,301–10,000 people.
The latest lead result on file, the 90th percentile of homes sampled in Jan–Jun 2026, was 7.1 ppb, below the 15 ppb action level that applied. The highest in five years was 15.8 ppb. That’s higher than 96% 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. IL0990550.
Which providers serve Troy Grove Township
This card will list the home internet providers the FCC’s National Broadband Map shows in Troy Grove 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 Troy Grove Township’s trash rules yet
Pickup rules, the dump and recycling in Troy Grove Township.
Where your child goes to school
Public school districts and the school path by grade.
Troy Grove Township is in two districts that split the grades: Mendota Township High School District 280 and Mendota Community Consolidated School District 289.
CSchool 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 Jun 2023; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Sep 12, 2025.
Troy Grove Township spans 3 ZIP codes
ZIP codes where Troy Grove Township residents live, with the share of the town in each.
| ZIP | Post office name | Share of Troy Grove Township | ZIP’s residents in Troy Grove Township |
|---|---|---|---|
| 61342 | Mendota, IL | 79% | 12% |
| 61372 | Troy Grove, IL | 18% | 100% |
| 61373 | Utica, IL | 3% | 2% |
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 Troy Grove Township
Who supplies Troy Grove Township’s drinking water, and has it had violations?
The Mendota water system (EPA ID IL0990550). It reported no health-based violations to EPA in the five years to October 2026; 80% of systems its size had none. Its latest lead 90th percentile was 7.1 ppb (Jan–Jun 2026), against a 15 ppb action level.
Who provides electricity in Troy Grove 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 Troy Grove Township?
61342 (79%), 61372 (18%), 61373 (3%), by share of residents. Census 2020 ZIP Code Tabulation Areas.
What school district is Troy Grove Township in?
Mendota Township High School District 280 and Mendota Community Consolidated School District 289.
How do I register to vote in Troy Grove 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 LaSalle 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.