Photo: NS Zakeruga at English Wikipedia · Public domainLiving in Oakbrook Terrace, IL: what to set up and who to call
Tap water in most of Oakbrook Terrace comes from Aqua Illinois-Oak Brook, which has a clean five-year EPA record (about 20% of systems its size had a health-based violation) and a latest lead result below detection. Two school districts split the grades in Oakbrook Terrace: DuPage High School District 88 and Salt Creek School District 48.
I’m new in town
What to set up in Oakbrook Terrace, 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 Oakbrook Terrace.
Power comes from Commonwealth Edison
Commonwealth Edison (Commonwealth Edison Co), an investor-owned utility, serves all of Oakbrook Terrace. 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 Aqua Illinois-Oak Brook
Aqua Illinois-Oak Brook supplies Oakbrook Terrace: about 58% of residents live in its service area. Oakbrook Terrace serves another 28%. Villa Park serves another 11%. About 4% 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 Oak Brook as seller) and serves 5,361 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 2026–Dec 2028, was 0.0 ppb, below the 15 ppb action level that applied. The highest in five years was 1.3 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. Violations are counted by the start of their compliance period. IL0430055.
4 home internet providers serve Oakbrook Terrace
100% of 582 addresses can get 100/20 Mbps; 37% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Xfinity | Cable | 100% | 2,000/250 |
| AT&T | Fiber, Fixed wireless, DSL | 93% | 5,000/5,000 |
| T-Mobile | Fixed wireless | 72% | 100/20 |
| Verizon | Fixed wireless | 57% | 300/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Oakbrook Terrace’s trash rules yet
Pickup rules, the dump and recycling in Oakbrook Terrace.
Where your child goes to school
Public school districts and the school path by grade.
Oakbrook Terrace is in two districts that split the grades: DuPage High School District 88 and Salt Creek School District 48.
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.
Oakbrook Terrace is in ZIP code 60181
ZIP codes where Oakbrook Terrace residents live, with the share of the town in each.
| ZIP | Post office name | Share of Oakbrook Terrace | ZIP’s residents in Oakbrook Terrace |
|---|---|---|---|
| 60181 | Villa Park, IL | 99% | 9% |
A few homes fall in 60523.
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 Oakbrook Terrace
Who supplies Oakbrook Terrace’s drinking water, and has it had violations?
Aqua Illinois-Oak Brook (EPA ID IL0430055). 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 0.0 ppb (Jan 2026–Dec 2028), against a 15 ppb action level.
Who provides electricity in Oakbrook Terrace?
Commonwealth Edison (Commonwealth Edison Co), an investor-owned utility. Its homes paid about 17.7¢ per kWh in 2025 (EIA).
What internet providers serve Oakbrook Terrace?
Xfinity, AT&T, T-Mobile, Verizon (FCC, as of December 2025).
What ZIP codes are in Oakbrook Terrace?
60181. Census 2020 ZIP Code Tabulation Areas.
What school district is Oakbrook Terrace in?
DuPage High School District 88 and Salt Creek School District 48. Parts of the city are in SD 45 DuPage County.
How do I register to vote in Oakbrook Terrace?
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 DuPage County Clerk - Election Division. 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.