Water quality for ZIP code 08542
ZIP 08542 covers Princeton in Mercer County, New Jersey, one of 22 ZIP codes in the county. 99 active public water systems serve the county; 69 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Mercer County
10 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Aqua NJ Lawrence Lawrence Twp |
8,655 | 3 | 5.7 mi | |
| Hopewell Boro W Dept Hopewell Boro |
2,035 | 4 | 6.0 mi | |
| Pennington W Dept Pennington Boro |
2,600 | 3 | 7.1 mi | |
| East Windsor Mua East Windsor Twp |
25,000 | 2 | 8.6 mi | |
| Trenton Water Works Ewing Twp, Hamilton Twp, Hopewell Twp.1106- and 2 more |
217,000 | 8 | 8.9 mi | |
| Hightstown Water Department Hightstown Boro |
5,400 | 0 | 9.3 mi | |
| Aqua NJ Hamilton Square Hamilton Twp |
39,128 | 4 | 10.0 mi | |
| Washington Crossing Park Estates Hopewell Twp.1106- |
356 | 4 | 10.0 mi | |
| Mercer County Correctional Center Hopewell Twp.1106- |
860 | 5 | 13.7 mi | |
| Robbinsville Twp Newtown Village Washington Twp |
300 | 2 | 32.7 mi |
Non-community systems in Mercer County (88: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Apple Montessori School Lawrence Twp |
35 | 3 | 1 | |
|
Terhune Orchards Lawrence Twp |
1,025 | 1 | 0 | |
|
Princeton Child Developmnt Ins Lawrence Twp |
110 | 1 | 0 | |
|
Princeton Technology Ctr Hopewell Twp.1106- |
80 | 1 | 1 | |
|
Rosedale Park Pump House 1 Hopewell Twp.1106- |
52 | 2 | 1 | |
|
The Watershed Institute Hopewell Twp.1106- |
26 | 2 | 1 | |
|
International Process Plants West Windsor Twp |
51 | 2 | 0 | |
|
Music & Movement Center Hopewell Twp.1106- |
65 | 0 | 0 | |
|
The Watershed Institute Hopewell Twp.1106- |
152 | 3 | 0 | |
|
Word Christian Fellowship Int Hopewell Twp.1106- |
91 | 0 | 0 | |
|
Princeton Windsor Office East Windsor Twp |
85 | 1 | 1 | |
|
Practice Square Offices East Windsor Twp |
72 | 1 | 0 | |
|
East Windsor Deli East Windsor Twp |
45 | 0 | 0 | |
|
Eden Autism Clayton Center West Windsor Twp |
60 | 8 | 2 | |
|
Pennington Leasing LLC Pennington Boro |
44 | 1 | 1 | |
|
Hopewell Tennis and Swim Hopewell Twp.1106- |
75 | 1 | 1 | |
|
Zydus Pharmaceuticals Hopewell Twp.1106- |
65 | 3 | 0 | |
|
Pennington Office Park-A Hopewell Twp.1106- |
31 | 1 | 1 | |
|
Goddard School West Windsor West Windsor Twp |
155 | 0 | 0 | |
|
84 Hopewell LLC Hopewell Twp.1106- |
66 | 1 | 0 | |
|
Shiva 1722 LLC Hopewell Twp.1106- |
26 | 2 | 1 | |
|
Offices at Pennington Point Hopewell Twp.1106- |
125 | 0 | 0 | |
|
Stacys Cream King Pennington Boro |
400 | 3 | 2 | |
|
Wildflowers Hopewell Twp.1106- |
362 | 1 | 1 | |
|
Wilson & Apple Funeral Home Hopewell Twp.1106- |
32 | 0 | 0 | |
|
Lukoil Station #57703 Hopewell Twp.1106- |
55 | 2 | 2 | |
|
Marcos Pizza Hopewell Twp.1106- |
104 | 2 | 1 | |
|
Pennington Cleaners Hopewell Twp.1106- |
215 | 1 | 1 | |
|
Pennington Family Chiropractic PC Hopewell Twp.1106- |
44 | 2 | 1 | |
|
The Pennington School Pennington Boro |
565 | 1 | 0 | |
|
Greater Princeton Investments LLC Hopewell Twp.1106- |
25 | 1 | 0 | |
|
Princeton RD Professiona East Windsor Twp |
165 | 0 | 0 | |
|
Mercer Professional Center @ Penn Hopewell Twp.1106- |
100 | 0 | 0 | |
|
Corner Stone Court Hopewell Twp.1106- |
940 | 1 | 0 | |
|
Tree Farm Village Hopewell Twp.1106- |
230 | 1 | 0 | |
|
Pennington Shop-Rite Hopewell Twp.1106- |
3,663 | 1 | 0 | |
|
The Village Learning Center Hopewell Twp.1106- |
100 | 1 | 0 | |
|
Pennington Montessori School Hopewell Twp.1106- |
133 | 1 | 0 | |
|
Camelot Nursery School Hopewell Twp.1106- |
69 | 0 | 0 | |
|
Linluks LLC Hopewell Twp.1106- |
32 | 0 | 0 | |
|
Bcj&r Hopewell Twp.1106- |
29 | 1 | 1 | |
|
Hillbilly Hall, Inc. Hopewell Twp.1106- |
104 | 2 | 1 | |
|
Pennington Citgo #12261011 Hopewell Twp.1106- |
35 | 0 | 0 | |
|
Hopewell Valley Vineyards LLC Pennington Boro |
71 | 1 | 0 | |
|
Timberlane Middle School Hopewell Twp.1106- |
901 | 7 | 0 | |
|
Hopwell Valley Medical Center Hopewell Twp.1106- |
65 | 2 | 1 | |
|
Little League of Hopewell Twp Hopewell Twp.1106- |
200 | 2 | 0 | |
|
Hopewell Township Municipal GA Hopewell Twp.1106- |
45 | 1 | 1 | |
|
H&h Appliance Center East Windsor Twp |
30 | 0 | 0 | |
|
Alliance Homes East Windsor Twp |
40 | 0 | 0 |
About this data
Water systems are matched to Mercer County, the county this ZIP code lies in, nearest to the ZIP code's centre first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system or, for systems without one, to the centre of the first town EPA lists the system as serving, from Census Bureau place files or the centre of the first town EPA lists the system as serving, from Census Bureau county subdivision files.
ZIP code areas and town boundaries come from the U.S. Census Bureau's 2020 ZCTA files.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The New Jersey records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.