City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#3025
Santa Claus
County, IN
95 A
#3026 Sardis
County, AL
95 A
#3027 Sarver
County, PA
95 A
#3028 Scottsville
County, TX
95 A
#3029 Shelley
County, ID
95 A
#3030 Shelton
County, WA
95 A
#3031 Sherwood
County, OR
95 A
#3032 Smith Center
County, KS
95 A
#3033 Smithsburg
County, MD
95 A
#3034 Snow Hill
County, NC
95 A
#3035 Soledad
County, CA
95 A
#3036 Soperton
County, GA
95 A
#3037 Spring Green
County, WI
95 A
#3038 Springfield
County, OH
95 A
#3039 St. Johnsville
County, NY
95 A
#3040 St. Joseph
County, MN
95 A
#3041 Stevenson
County, MD
95 A
#3042 Tallapoosa
County, GA
95 A
#3043 Tennyson
County, IN
95 A
#3044 Tiltonsville
County, OH
95 A
#3045 Trappe
County, PA
95 A
#3046 Trenton
County, NC
95 A
#3047 Upland
County, CA
95 A
#3048 Upper Twp
County, NJ
95 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.