City Water Quality Rankings in New Jersey
266 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#193
East Windsor Township
County, NJ
56 D
#194 Glen Rock
County, NJ
56 D
#195 Wallington
County, NJ
56 D
#196 Westmont
County, NJ
56 D
#197 Brigantine
County, NJ
55 D
#198 Glenwood
County, NJ
55 D
#199 Madison
County, NJ
55 D
#200 Florence
County, NJ
53 D
#201 Hohokus Boro
County, NJ
52 D
#202 New Lisbon
County, NJ
52 D
#203 Hopewell
County, NJ
51 D
#204 Perth Amboy
County, NJ
51 D
#205 Bloomingdale Boro
County, NJ
50 D
#206 Waldwick
County, NJ
50 D
#207 Franklinville
County, NJ
48 D
#208 Fair Lawn Boro
County, NJ
47 D
#209 East Brunswick Twp
County, NJ
46 D
#210 North Caldwell
County, NJ
46 D
#211 Belmar
County, NJ
43 F
#212 Branchville
County, NJ
43 F
#213 Cedar Grove
County, NJ
43 F
#214 Millville
County, NJ
43 F
#215 Somerset
County, NJ
42 F
#216 Pemberton
County, NJ
41 F
Frequently Asked Questions
How are city water quality rankings calculated in New Jersey?
WaterQ city rankings are based on EPA SDWIS data across local public water systems, including contaminant detections, compliance violations, and recency-weighted score signals.
Can I compare two cities in New Jersey?
Yes. Use the city comparison links on this page or open the Compare tool to evaluate two cities side by side on score, grade, and water system coverage.
How often does WaterQ refresh city data?
City-level metrics refresh when new EPA data is processed. Check city pages for latest score and violation context.