City Water Quality Rankings
11,561 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#9145
Robert Lee
County, TX
62 C
#9146 Rushville
County, NY
62 C
#9147 Salinas
County, CA
62 C
#9148 Sandy Creek
County, NY
62 C
#9149 Scott Air Force Base
County, IL
62 C
#9150 Scranton
County, AR
62 C
#9151 Shelbyville
County, TN
62 C
#9152 Stockton
County, IL
62 C
#9153 Story City
County, IA
62 C
#9154 Sykesville
County, PA
62 C
#9155 Talbotton
County, GA
62 C
#9156 Temple
County, TX
62 C
#9157 Topsfield
County, MA
62 C
#9158 Tremonton
County, UT
62 C
#9159 Tyrone
County, PA
62 C
#9160 Urbana
County, OH
62 C
#9161 Veyo
County, UT
62 C
#9162 Ware
County, MA
62 C
#9163 Waretown
County, NJ
62 C
#9164 West Deptford Township
County, NJ
62 C
#9165 West Jefferson
County, OH
62 C
#9166 Whitefish
County, MT
62 C
#9167 Williamsburg
County, KS
62 C
#9168 Albuquerque
County, NM
61 C
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.