City Water Quality Rankings
11,561 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#9217
Temecula
County, CA
61 C
#9218 Topsail Beach
County, NC
61 C
#9219 Versailles
County, MO
61 C
#9220 Waller
County, TX
61 C
#9221 Waynesboro
County, MS
61 C
#9222 Westport
County, WA
61 C
#9223 Woodbury
County, NJ
61 C
#9224 Aguadilla
County, PR
60 C
#9225 Albany
County, KY
60 C
#9226 Alexander
County, AR
60 C
#9227 Atwood
County, IL
60 C
#9228 Batavia
County, IL
60 C
#9229 Bayfield
County, WI
60 C
#9230 Bethany
County, OK
60 C
#9231 Bluefield
County, WV
60 C
#9232 Bremen
County, IN
60 C
#9233 Brigham City
County, UT
60 C
#9234 Brtidgewater
County, NJ
60 C
#9235 Buffalo
County, WY
60 C
#9236 Burlington
County, MA
60 C
#9237 Calmar
County, IA
60 C
#9238 Campton
County, KY
60 C
#9239 Canyon Lake
County, TX
60 C
#9240 Carlisle
County, SC
60 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.