City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#9289
Heber City
County, UT
64 C
#9290 Houston
County, MS
64 C
#9291 Huntland
County, TN
64 C
#9292 Huntley
County, IL
64 C
#9293 Jennerstown
County, PA
64 C
#9294 Justice
County, IL
64 C
#9295 Kirkland
County, IL
64 C
#9296 Lake View
County, IA
64 C
#9297 Lancaster
County, CA
64 C
#9298 Laquey
County, MO
64 C
#9299 Las Marias
County, PR
64 C
#9300 Leakesville
County, MS
64 C
#9301 Lee
County, MA
64 C
#9302 Leslie
County, MI
64 C
#9303 Lima
County, OH
64 C
#9304 Loretto
County, PA
64 C
#9305 Los Lunas
County, NM
64 C
#9306 Lubbock
County, TX
64 C
#9307 Mansfield
County, OH
64 C
#9308 Mchenry
County, IL
64 C
#9309 Milford
County, UT
64 C
#9310 Minor Hill
County, TN
64 C
#9311 Moab
County, UT
64 C
#9312 Monticello
County, IA
64 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.