City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#10417
Goodwell
County, OK
43 F
#10418 Hartford
County, KY
43 F
#10419 Lacenter
County, KY
43 F
#10420 Livingston
County, TN
43 F
#10421 Malakoff
County, TX
43 F
#10422 Millville
County, NJ
43 F
#10423 Moose Lake
County, MN
43 F
#10424 Moss
County, TN
43 F
#10425 New Cumberland
County, WV
43 F
#10426 New Lexington
County, OH
43 F
#10427 Palm City
County, FL
43 F
#10428 Park City
County, KS
43 F
#10429 Parowan
County, UT
43 F
#10430 Pecos
County, NM
43 F
#10431 Princeton
County, KY
43 F
#10432 Prospect Heights
County, IL
43 F
#10433 Rutherford
County, TN
43 F
#10434 Sapulpa
County, OK
43 F
#10435 Slater
County, MO
43 F
#10436 St. Jacob
County, IL
43 F
#10437 Waterford
County, PA
43 F
#10438 Aurora
County, UT
42 F
#10439 Berlin
County, CT
42 F
#10440 Burkburnett
County, TX
42 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.