City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#11089
Fletcher
County, OK
4 F
#11090 Gardner
County, IL
4 F
#11091 Gibbstown
County, NJ
4 F
#11092 Hastings
County, OK
4 F
#11093 Lakeland
County, GA
4 F
#11094 New Washington
County, IN
4 F
#11095 Saxton
County, PA
4 F
#11096 White Sulphur Springs
County, MT
4 F
#11097 Alliance
County, OH
3 F
#11098 Lake Hopatcong
County, NJ
3 F
#11099 Ocoee
County, FL
3 F
#11100 Tavares
County, FL
3 F
#11101 Walsenburg
County, CO
3 F
#11102 Campo
County, CA
2 F
#11103 Fruitland
County, ID
2 F
#11104 Lovingston
County, VA
2 F
#11105 Luquillo
County, PR
2 F
#11106 Moorestown
County, NJ
2 F
#11107 Anchorage
County, AK
1 F
#11108 Blanco
County, NM
1 F
#11109 Casselberry
County, FL
1 F
#11110 Falfurrias
County, TX
1 F
#11111 Lovington
County, NM
1 F
#11112 Stockholm
County, NJ
1 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.