Photo: Jauerback · CC BY-SA 3.0Living in Oswego, IL: what to set up and who to call
Every home in Oswego is in ZIP code 60543. Fiber reaches 96% of addresses in Oswego.
I’m new in town
What to set up in Oswego, 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 Oswego.
Power comes from Commonwealth Edison
Commonwealth Edison (Commonwealth Edison Co), an investor-owned utility, serves all of Oswego. 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 Oswego water system
The Oswego water system supplies Oswego: about 91% of residents live in its service area. About 8% 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 38,169 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 83% of the 3,525 systems serving 10,001–50,000 people.
The latest lead result on file, the 90th percentile of homes sampled in Jan–Dec 2025, was 0.0 ppb, below the 15 ppb action level that applied. The highest in five years was 1.2 ppb. 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. IL0930150.
7 home internet providers serve Oswego
100% of 10,495 addresses can get 100/20 Mbps; 96% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Xfinity | Cable | 99% | 2,000/250 |
| AT&T | DSL, Fixed wireless, Fiber | 94% | 1,000/1,000 |
| Metronet | Fiber | 92% | 5,120/5,120 |
| Watch Communications | Fixed wireless | 96% | 400/40 |
| Verizon | Fixed wireless | 87% | 1,000/75 |
| T-Mobile | Fixed wireless | 56% | 100/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Oswego’s trash rules yet
Pickup rules, the dump and recycling in Oswego.
Where your child goes to school
Public school districts and the school path by grade.
Most of Oswego (94%) is in Oswego Community Unit School District 308; parts are in Yorkville Community Unit School District 115 (6%).
B+School 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.
Oswego is in ZIP code 60543
ZIP codes where Oswego residents live, with the share of the town in each.
| ZIP | Post office name | Share of Oswego | ZIP’s residents in Oswego |
|---|---|---|---|
| 60543 | Oswego, IL | 100% | 86% |
A few homes fall in 60560.
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 Oswego
Who supplies Oswego’s drinking water, and has it had violations?
The Oswego water system (EPA ID IL0930150). It reported no health-based violations to EPA in the five years to October 2026; 83% of systems its size had none. Its latest lead 90th percentile was 0.0 ppb (Jan–Dec 2025), against a 15 ppb action level.
Who provides electricity in Oswego?
Commonwealth Edison (Commonwealth Edison Co), an investor-owned utility. Its homes paid about 17.7¢ per kWh in 2025 (EIA).
What internet providers serve Oswego?
Xfinity, AT&T, Metronet, Watch Communications, Verizon, T-Mobile (FCC, as of December 2025).
What ZIP codes are in Oswego?
60543. Census 2020 ZIP Code Tabulation Areas.
What school district is Oswego in?
Oswego Community Unit School District 308. Parts of the city are in Yorkville Community Unit School District 115.
How do I register to vote in Oswego?
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 Kendall 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.