City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#10369
East Brady
County, PA
44 F
#10370 Edinboro
County, PA
44 F
#10371 Elkhorn
County, WI
44 F
#10372 Enfield
County, IL
44 F
#10373 Eveleth
County, MN
44 F
#10374 Evergreen
County, CO
44 F
#10375 Fairfield
County, IL
44 F
#10376 Farmington
County, MO
44 F
#10377 Franklin
County, KY
44 F
#10378 Fredricktown
County, OH
44 F
#10379 Goodfellow Afb
County, TX
44 F
#10380 Havasu Lake
County, CA
44 F
#10381 Hayesville
County, NC
44 F
#10382 Huntington
County, TX
44 F
#10383 Indian Hills
County, CO
44 F
#10384 La Verkin
County, UT
44 F
#10385 Layton
County, UT
44 F
#10386 Lexington
County, OK
44 F
#10387 Longmeadow
County, MA
44 F
#10388 Mcgill
County, NV
44 F
#10389 Melbourne Beach
County, FL
44 F
#10390 Middletown
County, NY
44 F
#10391 Montgomery
County, IL
44 F
#10392 Moody
County, TX
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.