City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#6073
Roach
County, MO
86 B
#6074 Rochester
County, NY
86 B
#6075 Rockdale
County, TX
86 B
#6076 Rome
County, NY
86 B
#6077 Rosalia
County, KS
86 B
#6078 Round Hill
County, VA
86 B
#6079 Royalton
County, PA
86 B
#6080 Royston
County, GA
86 B
#6081 Salem
County, MA
86 B
#6082 San Diego
County, CA
86 B
#6083 San Juan
County, TX
86 B
#6084 Seaside Park
County, NJ
86 B
#6085 Shelbyville
County, IL
86 B
#6086 Shepherdstown
County, WV
86 B
#6087 Sheridan
County, WY
86 B
#6088 Short Hills
County, NJ
86 B
#6089 Shreve
County, OH
86 B
#6090 Sidney
County, MI
86 B
#6091 Sierra Madre
County, CA
86 B
#6092 Sneedville
County, TN
86 B
#6093 Solon
County, IA
86 B
#6094 Sonyea
County, NY
86 B
#6095 Spring City
County, TN
86 B
#6096 Springboro
County, PA
86 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.