Living in Johnsburg, IL: what to set up and who to call
Prairie Path Water Co-Whispering Hills reported one health-based violation to EPA in the last five years: a lead and copper treatment requirement (Lead and Copper Rule Revisions), beginning Oct 2024. Two school districts split the grades in Johnsburg: McHenry Community High School District 156 and Johnsburg Community Unit School District 12.
I’m new in town
What to set up in Johnsburg, 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 Johnsburg.
Power comes from Commonwealth Edison
Commonwealth Edison (Commonwealth Edison Co), an investor-owned utility, serves all of Johnsburg. 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 Prairie Path Water Co-Whispering Hills
Prairie Path Water Co-Whispering Hills supplies Johnsburg: about 64% of residents live in its service area. About 28% 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 8,300 people in all.
1 health-based violation reported to EPA in the five years to October 2026: a lead and copper treatment requirement (Lead and Copper Rule Revisions), beginning Oct 2024. 80% of the 5,012 systems serving 3,301–10,000 people had none.
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 2.5 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. IL1115700.
6 home internet providers serve Johnsburg
100% of 2,649 addresses can get 100/20 Mbps; 2% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Xfinity | Cable | 100% | 2,000/250 |
| AT&T | DSL, Fixed wireless, Fiber | 71% | 75/20 |
| Verizon | Fixed wireless | 77% | 300/20 |
| T-Mobile | Fixed wireless | 62% | 100/20 |
| Rise Broadband | Fixed wireless | 19% | 25/5 |
| E-vergent | Fixed wireless | 7% | 60/10 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Johnsburg’s trash rules yet
Pickup rules, the dump and recycling in Johnsburg.
Where your child goes to school
Public school districts and the school path by grade.
Johnsburg is in two districts that split the grades: McHenry Community High School District 156 and Johnsburg Community Unit School District 12.
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.
Johnsburg is in ZIP code 60051
ZIP codes where Johnsburg residents live, with the share of the town in each.
| ZIP | Post office name | Share of Johnsburg | ZIP’s residents in Johnsburg |
|---|---|---|---|
| 60051 | Mchenry, IL | 100% | 26% |
A few homes fall in 60050.
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 Johnsburg
Who supplies Johnsburg’s drinking water, and has it had violations?
Prairie Path Water Co-Whispering Hills (EPA ID IL1115700). It reported 1 health-based violation to EPA in the five years to October 2026: a lead and copper treatment requirement (Lead and Copper Rule Revisions). 80% 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 Johnsburg?
Commonwealth Edison (Commonwealth Edison Co), an investor-owned utility. Its homes paid about 17.7¢ per kWh in 2025 (EIA).
What internet providers serve Johnsburg?
Xfinity, AT&T, Verizon, T-Mobile, Rise Broadband, E-vergent (FCC, as of December 2025).
What ZIP codes are in Johnsburg?
60051. Census 2020 ZIP Code Tabulation Areas.
What school district is Johnsburg in?
McHenry Community High School District 156 and Johnsburg Community Unit School District 12. Parts of the city are in McHenry Community Consolidated School District 15.
How do I register to vote in Johnsburg?
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 McHenry 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.