City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#6985
Santa Rosa Beach
County, FL
82 B
#6986 Sartell
County, MN
82 B
#6987 Seattle
County, WA
82 B
#6988 Shannon
County, MS
82 B
#6989 Sheldon
County, IA
82 B
#6990 Shell Rock
County, IA
82 B
#6991 Sikeston
County, MO
82 B
#6992 Sipesville
County, PA
82 B
#6993 Slater
County, IA
82 B
#6994 Slayton
County, MN
82 B
#6995 Smithville
County, TN
82 B
#6996 Snow Hill
County, MD
82 B
#6997 Snyder
County, TX
82 B
#6998 South Gate
County, CA
82 B
#6999 South St. Paul
County, MN
82 B
#7000 Sparks
County, NV
82 B
#7001 Spotswood
County, NJ
82 B
#7002 Spruce Pine
County, NC
82 B
#7003 Stockton
County, IL
82 B
#7004 Sundown
County, TX
82 B
#7005 Sweet Home
County, OR
82 B
#7006 Syracuse
County, KS
82 B
#7007 Talent
County, OR
82 B
#7008 Taylor
County, TX
82 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.