City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#10561
Gore
County, OK
38 F
#10562 Hamlin
County, TX
38 F
#10563 Huntsville
County, UT
38 F
#10564 Ithaca
County, MI
38 F
#10565 Liberty
County, KY
38 F
#10566 Monroe
County, OK
38 F
#10567 Monticello
County, FL
38 F
#10568 New Paris
County, PA
38 F
#10569 Omaha
County, AR
38 F
#10570 Ormond Beach
County, FL
38 F
#10571 Pana
County, IL
38 F
#10572 Portland
County, PA
38 F
#10573 Prairie Grove
County, AR
38 F
#10574 Prophetstown
County, IL
38 F
#10575 Roland
County, IA
38 F
#10576 Vienna
County, IL
38 F
#10577 Ville Platte
County, LA
38 F
#10578 West Springfield
County, MA
38 F
#10579 Williamsport
County, PA
38 F
#10580 Winters
County, TX
38 F
#10581 Woodsfield
County, OH
38 F
#10582 Armonk
County, NY
37 F
#10583 Bald Knob
County, AR
37 F
#10584 Bastrop
County, LA
37 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.