Photo: Joelincoln at English Wikipedia · Public domainLiving in Cedar Knolls, NJ: what to set up and who to call
Cedar Knolls has no town government of its own, so Morris County runs its elections and most services, and its children attend Hanover Park Regional School District. The closest public drop-off to Cedar Knolls is Morristown Recycling Center, 2 miles out; the town decides whether residents may use it.
I’m new in town
What to set up in Cedar Knolls, 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 Cedar Knolls.
Power comes from JCP&L
JCP&L (Jersey Central Power & Light Co.), an investor-owned utility, serves all of Cedar Knolls. Its homes paid an average of 18.4¢ per kWh in 2025, about $145 a month (its average across New Jersey, for customers on its standard service). New Jersey lets you buy power from another supplier; 9% of JCP&L’s home customers do, and JCP&L still delivers it.
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Southeast Morris County Mua water system
The Southeast Morris County Mua water system supplies almost all of Cedar Knolls. It draws surface water (EPA lists Nj American Water - Short Hills and Morris County Mua and Passaic Valley Water Commission as sellers) and serves 62,349 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 90% of the 597 systems serving 50,001–100,000 people.
The latest lead result on file, the 90th percentile of homes sampled in Jan–Dec 2026, was 1.1 ppb, below the 15 ppb action level that applied. The highest in five years was 3.5 ppb. That’s lower than 50% 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. Violations are counted by the start of their compliance period. NJ1424001.
5 home internet providers serve Cedar Knolls
97% of 1,081 addresses can get 100/20 Mbps; 93% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Verizon | Fiber, Fixed wireless | 98% | 2,300/2,300 |
| Optimum | Cable, Fiber | 92% | 8,000/8,000 |
| Xfinity | Fiber, Cable | 2% | 1,200/35 |
| T-Mobile | Fixed wireless | 87% | 100/20 |
| AT&T | Fixed wireless | 41% | 25/3 |
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 Cedar Knolls.
Morristown Recycling Center
90 Lake Road, Morristown, NJ, 07960
This isn’t Cedar Knolls’ own facility. Whether Cedar Knolls 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.
Cedar Knolls is in two districts that split the grades: Hanover Park Region School District and Hanover Township School District.
Test scores and every school: see Schools →U.S. Department of Education, NCES Common Core of Data, 2024–25. Enrollment rules and registration are the district’s.
No town hall: the county runs things
Cedar Knolls is unincorporated, so Morris County is the local government.
Election office: FVAP local election office directory, updated Apr 2020; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
Cedar Knolls is in ZIP code 07927
ZIP codes where Cedar Knolls residents live, with the share of the town in each.
| ZIP | Post office name | Share of Cedar Knolls | ZIP’s residents in Cedar Knolls |
|---|---|---|---|
| 07927 | Cedar Knolls, NJ | 100% | 99% |
A few homes fall in 07950.
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 Cedar Knolls
Who supplies Cedar Knolls’ drinking water, and has it had violations?
The Southeast Morris County Mua water system (EPA ID NJ1424001). It reported no health-based violations to EPA in the five years to October 2026; 90% of systems its size had none. Its latest lead 90th percentile was 1.1 ppb (Jan–Dec 2026), against a 15 ppb action level.
Who provides electricity in Cedar Knolls?
JCP&L (Jersey Central Power & Light Co.), an investor-owned utility. Its homes paid about 18.4¢ per kWh in 2025 (EIA).
What internet providers serve Cedar Knolls?
Verizon, Optimum, Xfinity, T-Mobile, AT&T (FCC, as of December 2025).
What ZIP codes are in Cedar Knolls?
07927. Census 2020 ZIP Code Tabulation Areas.
What school district is Cedar Knolls in?
Hanover Park Region School District and Hanover Township School District.
How do I register to vote in Cedar Knolls?
In New Jersey you can register online until 21 days before Election Day, in person until 21 days before Election Day, or by mail (postmarked 21 days before). Elections here are run by the Morris County Clerk. Check your registration at voter.svrs.nj.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 Nov 18, 2024 (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.