City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#10225
Maryville
County, MO
48 D
#10226 Maybrook
County, NY
48 D
#10227 Mccormick
County, SC
48 D
#10228 Mcneill
County, MS
48 D
#10229 Mitchellville
County, IA
48 D
#10230 Monmouth
County, IL
48 D
#10231 Moriarty
County, NM
48 D
#10232 Moultrie
County, GA
48 D
#10233 Mt. Sterling
County, KY
48 D
#10234 Norwood
County, CO
48 D
#10235 Oakdale
County, LA
48 D
#10236 Odem
County, TX
48 D
#10237 Porterdale
County, GA
48 D
#10238 River Oaks
County, TX
48 D
#10239 Rivesville,
County, WV
48 D
#10240 Riviera Beach
County, FL
48 D
#10241 Russell Springs
County, KY
48 D
#10242 Silver Creek
County, NY
48 D
#10243 South Bloomfield
County, OH
48 D
#10244 Trout
County, LA
48 D
#10245 Tunkhannock
County, PA
48 D
#10246 Virginia
County, IL
48 D
#10247 Weston
County, FL
48 D
#10248 Woodlawn
County, TN
48 D
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.