City Water Quality Rankings in New Jersey
266 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#169
South Orange
County, NJ
68 C
#170 Mahwah
County, NJ
67 C
#171 Ramsey
County, NJ
67 C
#172 Deptford
County, NJ
66 C
#173 Mount Arlington
County, NJ
66 C
#174 Totowa Borough
County, NJ
66 C
#175 Waretown
County, NJ
66 C
#176 Flanders
County, NJ
65 C
#177 West Deptford Township
County, NJ
64 C
#178 Woodbine
County, NJ
64 C
#179 Woodbury
County, NJ
64 C
#180 Rio Grande
County, NJ
63 C
#181 Camden
County, NJ
62 C
#182 Jb Mdl
County, NJ
61 C
#183 Brtidgewater
County, NJ
60 C
#184 Bordentown
County, NJ
59 D
#185 Park Ridge
County, NJ
59 D
#186 Rockaway
County, NJ
59 D
#187 Williamstown
County, NJ
59 D
#188 Mine Hill
County, NJ
58 D
#189 New Brunswick
County, NJ
58 D
#190 Kinnelon
County, NJ
57 D
#191 Avalon
County, NJ
56 D
#192 Cedar Knolls
County, NJ
56 D
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.