City Water Quality Rankings in New Jersey
265 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#121
Hoboken
County, NJ
78 B
#122 Ogdensburg
County, NJ
78 B
#123 Pitman
County, NJ
78 B
#124 Ventor City
County, NJ
78 B
#125 Whitehouse Station
County, NJ
78 B
#126 Hamburg
County, NJ
77 B
#127 Riverdale
County, NJ
77 B
#128 Highland Lakes
County, NJ
76 B
#129 Mahwah
County, NJ
76 B
#130 Pennington
County, NJ
76 B
#131 Cape May
County, NJ
75 B
#132 Elmwood Park Boro
County, NJ
75 B
#133 Long Valley
County, NJ
75 B
#134 Pittsgrove
County, NJ
74 C
#135 Sayreville
County, NJ
74 C
#136 Short Hills
County, NJ
74 C
#137 Allamuchy Township
County, NJ
73 C
#138 Netcong
County, NJ
73 C
#139 Wallington
County, NJ
73 C
#140 Westville
County, NJ
73 C
#141 Woodbridge
County, NJ
73 C
#142 Florham Park
County, NJ
72 C
#143 Garfield
County, NJ
72 C
#144 Mansquan
County, NJ
72 C
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.