Living in Cornwall Township, IL: what to set up and who to call
Most mail in Cornwall Township goes to 61235 (86% of residents), one of 3 ZIP codes in town. Only 29% of addresses in Cornwall Township can get a wired internet connection, by the FCC’s map.
I’m new in town
What to set up in Cornwall 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 Cornwall Township.
Power comes from Ameren Illinois Company
Ameren Illinois Company (Ameren Illinois Company), an investor-owned utility, serves all of Cornwall Township. Its homes paid an average of 16.7¢ per kWh in 2025, about $148 a month (its average across Illinois, for customers on its standard service). Illinois lets you buy power from another supplier; 45% of Ameren Illinois Company’s home customers do, and Ameren Illinois Company still delivers it.
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
6 home internet providers serve Cornwall Township
95% of 177 addresses can get 100/20 Mbps; 29% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Henry County Telephone Company | Fixed wireless, Fiber | 86% | 1,000/1,000 |
| Geneseo Telephone Company | Fixed wireless, Fiber | 5% | 1,000/1,000 |
| Nextlink | Fixed wireless | 79% | 500/100 |
| Verizon | Fixed wireless | 68% | 300/20 |
| T-Mobile | Fixed wireless | 15% | 25/3 |
| Cambridge Telephone Company | Fixed wireless | 4% | 100/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Cornwall Township’s trash rules yet
Pickup rules, the dump and recycling in Cornwall Township.
Where your child goes to school
Public school districts and the school path by grade.
Most of Cornwall Township (84%) is in Geneseo Community Unit School District 228; parts are in Annawan Community Unit School District 226 (13%).
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 Sep 2021; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Sep 12, 2025.
Cornwall Township spans 3 ZIP codes
ZIP codes where Cornwall Township residents live, with the share of the town in each.
| ZIP | Post office name | Share of Cornwall Township | ZIP’s residents in Cornwall Township |
|---|---|---|---|
| 61235 | Atkinson, IL | 86% | 14% |
| 61234 | Annawan, IL | 11% | 2% |
| 61238 | Cambridge, IL | 3% | 0% |
A few homes fall in 61443.
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 Cornwall Township
Who provides electricity in Cornwall Township?
Ameren Illinois Company (Ameren Illinois Company), an investor-owned utility. Its homes paid about 16.7¢ per kWh in 2025 (EIA).
What internet providers serve Cornwall Township?
Henry County Telephone Company, Geneseo Telephone Company, Nextlink, Verizon, T-Mobile, Cambridge Telephone Company (FCC, as of December 2025).
What ZIP codes are in Cornwall Township?
61235 (86%), 61234 (11%), 61238 (3%), by share of residents. Census 2020 ZIP Code Tabulation Areas.
What school district is Cornwall Township in?
Geneseo Community Unit School District 228. Parts of the city are in Annawan Community Unit School District 226.
How do I register to vote in Cornwall 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 Henry County Clerk. Check your registration at ova.elections.il.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 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.