Living in Grayslake, IL: what to set up and who to call
The Grayslake water system has a clean five-year EPA record, but its latest lead result, 11.0 ppb, was higher than 99% of similar systems’ (the action level is 15). Two school districts split the grades in Grayslake: Grayslake Community High School District 127 and Grayslake Consolidated Community School District 46.
I’m new in town
What to set up in Grayslake, 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 Grayslake.
Power comes from Commonwealth Edison
Commonwealth Edison (Commonwealth Edison Co), an investor-owned utility, serves all of Grayslake. 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 Grayslake water system
The Grayslake water system supplies Grayslake: about 95% of residents live in its service area. About 5% 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 Central Lake County Jawa as seller) and serves 21,248 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–Jun 2026, was 11.0 ppb, below the 15 ppb action level that applied. The highest in five years was 12.0 ppb. That’s higher than 99% 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. IL0970250.
5 home internet providers serve Grayslake
100% of 6,603 addresses can get 100/20 Mbps; 14% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Xfinity | Cable | 100% | 2,000/250 |
| AT&T | DSL, Fixed wireless, Fiber | 96% | 5,000/5,000 |
| T-Mobile | Fixed wireless | 91% | 100/20 |
| Verizon | Fixed wireless | 82% | 300/20 |
| E-vergent | Fixed wireless | 27% | 60/10 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
The nearest public drop-off is 2 miles away
Pickup rules, the dump and recycling in Grayslake.
Groot North Transfer Station
201 Porter Drive, Round Lake Park, IL, 60073
This isn’t Grayslake’s own facility. Whether Grayslake residents may use it is the town’s rule: check the town’s office.
OpenStreetMap, as of Oct 9, 2026. © OpenStreetMap contributors.
Where your child goes to school
Public school districts and the school path by grade.
Grayslake is in two districts that split the grades: Grayslake Community High School District 127 and Grayslake Consolidated Community School District 46.
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 Jul 2024; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Sep 12, 2025.
Grayslake is in ZIP code 60030
ZIP codes where Grayslake residents live, with the share of the town in each.
| ZIP | Post office name | Share of Grayslake | ZIP’s residents in Grayslake |
|---|---|---|---|
| 60030 | Grayslake, IL | 100% | 58% |
A few homes fall in 60046.
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.
Train: OpenStreetMap (© OpenStreetMap contributors). ER: CMS hospital data. Library: IMLS Public Libraries Survey, FY2024.
Questions about living in Grayslake
Who supplies Grayslake’s drinking water, and has it had violations?
The Grayslake water system (EPA ID IL0970250). 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 11.0 ppb (Jan–Jun 2026), against a 15 ppb action level.
Who provides electricity in Grayslake?
Commonwealth Edison (Commonwealth Edison Co), an investor-owned utility. Its homes paid about 17.7¢ per kWh in 2025 (EIA).
What internet providers serve Grayslake?
Xfinity, AT&T, T-Mobile, Verizon, E-vergent (FCC, as of December 2025).
What ZIP codes are in Grayslake?
60030. Census 2020 ZIP Code Tabulation Areas.
What school district is Grayslake in?
Grayslake Community High School District 127 and Grayslake Consolidated Community School District 46. Parts of the city are in Fremont School District 79 and Woodland Community Consolidated School District 50 and Mundelein Consolidated High School District 120 and Warren Township High School District 121.
How do I register to vote in Grayslake?
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 Lake 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.