City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#7993
Milo
County, ME
76 B
#7994 Mooresburg
County, TN
76 B
#7995 Morgan City
County, LA
76 B
#7996 Moss Point
County, MS
76 B
#7997 Mount Crested Butte
County, CO
76 B
#7998 Mount Pleasant
County, UT
76 B
#7999 Mulvane
County, KS
76 B
#8000 Munford
County, AL
76 B
#8001 Nephi
County, UT
76 B
#8002 New Haven
County, MO
76 B
#8003 Newport
County, RI
76 B
#8004 North English
County, IA
76 B
#8005 Oak Grove
County, LA
76 B
#8006 Oldsmar
County, FL
76 B
#8007 Olla
County, LA
76 B
#8008 Oneonta
County, AL
76 B
#8009 Ottawa
County, OH
76 B
#8010 Overbrook
County, KS
76 B
#8011 Pahrump
County, NV
76 B
#8012 Panama City
County, FL
76 B
#8013 Paris
County, IL
76 B
#8014 Parkston
County, SD
76 B
#8015 Parkwood Beach
County, MA
76 B
#8016 Paulding
County, OH
76 B
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.