City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#4993
Savannah
County, TX
90 A
#4994 Schofield Barracks
County, HI
90 A
#4995 Schwenksville
County, PA
90 A
#4996 Scranton
County, PA
90 A
#4997 Seaside Heights
County, NJ
90 A
#4998 Sedalia
County, KY
90 A
#4999 Selma
County, CA
90 A
#5000 Sewannee
County, TN
90 A
#5001 Sharon
County, MA
90 A
#5002 Shelton
County, NE
90 A
#5003 Sheppard Afb
County, TX
90 A
#5004 Shingle Springs
County, CA
90 A
#5005 Shohola
County, PA
90 A
#5006 Sicklerville
County, NJ
90 A
#5007 Silver City
County, NM
90 A
#5008 South Pittsburg
County, TN
90 A
#5009 Southampton
County, NJ
90 A
#5010 Spanaway
County, WA
90 A
#5011 Sparta
County, MI
90 A
#5012 Spring Grove
County, MN
90 A
#5013 Spring Valley
County, WI
90 A
#5014 Springfield
County, CO
90 A
#5015 St. Charles
County, MN
90 A
#5016 St. Clair Shores
County, MI
90 A
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.