City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#9217
Hickman
County, KY
65 C
#9218 High Point
County, NC
65 C
#9219 Hinton
County, OK
65 C
#9220 Holbrook
County, AZ
65 C
#9221 Jackson
County, KY
65 C
#9222 Jenks
County, OK
65 C
#9223 Kettleman City
County, CA
65 C
#9224 Lamar
County, MO
65 C
#9225 Lexington
County, IL
65 C
#9226 Litchfield Park
County, AZ
65 C
#9227 Livingston
County, TX
65 C
#9228 Lufkin
County, TX
65 C
#9229 Molalla
County, OR
65 C
#9230 Muncy
County, PA
65 C
#9231 Nashville
County, IL
65 C
#9232 Newport
County, PA
65 C
#9233 Oakland City
County, IN
65 C
#9234 Oberlin
County, LA
65 C
#9235 Pablo
County, MT
65 C
#9236 Pine Praire
County, LA
65 C
#9237 Portsmouth
County, RI
65 C
#9238 Rio Grande
County, TX
65 C
#9239 Robert Lee
County, TX
65 C
#9240 Roswell
County, NM
65 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.