City Water Quality Rankings
11,561 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#9193
Lake Bluff
County, IL
61 C
#9194 Lake Elmo
County, MN
61 C
#9195 Liberty
County, MO
61 C
#9196 Manton
County, MI
61 C
#9197 Mascoutah
County, IL
61 C
#9198 Mcgehee
County, AR
61 C
#9199 Merrionette Park
County, IL
61 C
#9200 Minor Hill
County, TN
61 C
#9201 Monticello
County, MN
61 C
#9202 Mount Morris
County, PA
61 C
#9203 Nas Pensacola
County, FL
61 C
#9204 North Vernon
County, IN
61 C
#9205 Pennsylvania Furnace
County, PA
61 C
#9206 Portland
County, CT
61 C
#9207 Princeton
County, IN
61 C
#9208 Reeds Spring
County, MO
61 C
#9209 Robbinsville
County, NC
61 C
#9210 Salem
County, IN
61 C
#9211 San Antonio
County, FL
61 C
#9212 Seneca
County, MO
61 C
#9213 Silver Creek
County, NY
61 C
#9214 Somerset
County, OH
61 C
#9215 Southaven
County, MS
61 C
#9216 Steinhatchee
County, FL
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.