City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#3241
Estherville
County, IA
94 A
#3242 Eubank
County, KY
94 A
#3243 Evart
County, MI
94 A
#3244 Eyota
County, MN
94 A
#3245 Fair Haven
County, VT
94 A
#3246 Fair Oaks Ranch
County, TX
94 A
#3247 Falkville
County, AL
94 A
#3248 Farmingdale
County, NJ
94 A
#3249 Fayetteville
County, OH
94 A
#3250 Fennville
County, MI
94 A
#3251 Fillmore
County, CA
94 A
#3252 Firebaugh
County, CA
94 A
#3253 Firth
County, NE
94 A
#3254 Flatwoods
County, KY
94 A
#3255 Florence
County, SC
94 A
#3256 Florida
County, PR
94 A
#3257 Flowood
County, MS
94 A
#3258 Fontana
County, CA
94 A
#3259 Forks
County, WA
94 A
#3260 Fort Eustis
County, VA
94 A
#3261 Fort Pierre
County, SD
94 A
#3262 Fountain
County, CO
94 A
#3263 Franklin
County, OH
94 A
#3264 Franklinville
County, NC
94 A
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.