City Water Quality Rankings
11,561 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#10081
Kimball
County, MI
44 F
#10082 Lampasas
County, TX
44 F
#10083 Le Grand
County, CA
44 F
#10084 Masontown
County, PA
44 F
#10085 Mcgill
County, NV
44 F
#10086 Melbourne Beach
County, FL
44 F
#10087 Middletown
County, NY
44 F
#10088 Montua
County, UT
44 F
#10089 Murrayville
County, IL
44 F
#10090 New Bloomfield
County, PA
44 F
#10091 Park City
County, KS
44 F
#10092 Payson
County, AZ
44 F
#10093 Pflugerville
County, TX
44 F
#10094 Pittsboro
County, MS
44 F
#10095 Plano
County, IL
44 F
#10096 Polo
County, IL
44 F
#10097 Pomeroy
County, OH
44 F
#10098 Port St Lucie
County, FL
44 F
#10099 Ramsey
County, NJ
44 F
#10100 Richland Springs
County, TX
44 F
#10101 Rutherford
County, TN
44 F
#10102 Sacaton
County, AZ
44 F
#10103 Socorro
County, NM
44 F
#10104 Sunbury
County, PA
44 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.