Taft Farmstead · Photo: Nyttend · Public domainLiving in Rochester Township, IL: what to set up and who to call
The Rochester water system has a clean five-year EPA record, but its latest lead result, 5.6 ppb, was higher than 94% of similar systems’ (the action level is 15). Rochester Community Unit School District 3A runs the public schools in Rochester Township.
I’m new in town
What to set up in Rochester 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 Rochester Township.
Power comes from Ameren Illinois Company
Ameren Illinois Company (Ameren Illinois Company), an investor-owned utility, serves all of Rochester 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.
Water comes from Rochester water system
The Rochester water system supplies Rochester Township: about 73% of residents live in its service area. Springfield serves another 5%. About 22% of homes are outside any mapped community water system, most likely on private wells, which EPA doesn’t regulate. It buys treated surface water (EPA lists Springfield as seller) and serves 3,856 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 2023–Dec 2025, was 5.6 ppb, below the 15 ppb action level that applied. That’s higher than 94% 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 (EPA’s estimate). Violations are counted by the start of their compliance period. IL1671000.
7 home internet providers serve Rochester Township
93% of 2,229 addresses can get 100/20 Mbps; 72% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Xfinity | Cable | 84% | 1,200/35 |
| Computer Techniques | Fiber | 71% | 1,000/1,000 |
| AT&T | Fixed wireless, DSL | 43% | 100/20 |
| T-Mobile | Fixed wireless | 78% | 100/20 |
| Rise Broadband | Fixed wireless | 73% | 300/60 |
| Nextlink | Fixed wireless | 42% | 1,000/500 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Rochester Township’s trash rules yet
Pickup rules, the dump and recycling in Rochester Township.
Where your child goes to school
Public school districts and the school path by grade.
Most of Rochester Township (99%) is in Rochester Community Unit School District 3A.
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 Jun 2025; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Sep 12, 2025.
Rochester Township spans 2 ZIP codes
ZIP codes where Rochester Township residents live, with the share of the town in each.
| ZIP | Post office name | Share of Rochester Township | ZIP’s residents in Rochester Township |
|---|---|---|---|
| 62563 | Rochester, IL | 88% | 80% |
| 62712 | Springfield, IL | 12% | 6% |
A few homes fall in 62520.
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 Rochester Township
Who supplies Rochester Township’s drinking water, and has it had violations?
The Rochester water system (EPA ID IL1671000). 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 5.6 ppb (Jan 2023–Dec 2025), against a 15 ppb action level.
Who provides electricity in Rochester 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 Rochester Township?
Xfinity, Computer Techniques, AT&T, T-Mobile, Rise Broadband, Nextlink (FCC, as of December 2025).
What ZIP codes are in Rochester Township?
62563 (88%), 62712 (12%), by share of residents. Census 2020 ZIP Code Tabulation Areas.
What school district is Rochester Township in?
Rochester Community Unit School District 3A.
How do I register to vote in Rochester 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 Sangamon 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 National Broadband Map, as of December 2025.