City Water Quality Rankings
11,561 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#10801
Okemah
County, OK
13 F
#10802 Perry
County, OK
13 F
#10803 Plain Dealing
County, LA
13 F
#10804 Port Richey
County, FL
13 F
#10805 Port Saint Lucie
County, FL
13 F
#10806 Ringwood
County, NJ
13 F
#10807 Roscoe
County, TX
13 F
#10808 Shattuck
County, OK
13 F
#10809 St Anne
County, IL
13 F
#10810 Sussex
County, NJ
13 F
#10811 Vernon
County, TX
13 F
#10812 Virginia City
County, MT
13 F
#10813 Alpine
County, CA
12 F
#10814 Farmerville
County, LA
12 F
#10815 Greenwood
County, LA
12 F
#10816 Gunnison
County, UT
12 F
#10817 Lonoke
County, AR
12 F
#10818 Maysville
County, GA
12 F
#10819 Pala
County, CA
12 F
#10820 Pembroke Pines
County, FL
12 F
#10821 Roulette
County, PA
12 F
#10822 Silver Bay
County, NY
12 F
#10823 Zephyrhills
County, FL
12 F
#10824 Branchville
County, NJ
11 F
Frequently Asked Questions
How are city water quality rankings calculated?
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 US cities directly?
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.