City Water Quality Rankings
11,561 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#10393
Monmouth Junction
County, NJ
35 F
#10394 Mount Pocono
County, PA
35 F
#10395 Munday
County, TX
35 F
#10396 Pikeville
County, KY
35 F
#10397 Ravenswood
County, WV
35 F
#10398 Saratoga
County, WY
35 F
#10399 Sugar City
County, ID
35 F
#10400 Vandalia
County, IL
35 F
#10401 Voorheesville
County, NY
35 F
#10402 Yale
County, OK
35 F
#10403 Albion
County, MI
34 F
#10404 Alexandria
County, TN
34 F
#10405 Aliquippa
County, PA
34 F
#10406 Barre
County, VT
34 F
#10407 Bicknell
County, IN
34 F
#10408 Big Cabin
County, OK
34 F
#10409 Boyertown
County, PA
34 F
#10410 Centerton
County, AR
34 F
#10411 Davis-Monthan Afb
County, AZ
34 F
#10412 Eloy
County, AZ
34 F
#10413 Flinton
County, PA
34 F
#10414 Fort Madison
County, IA
34 F
#10415 Francis
County, UT
34 F
#10416 Franklin
County, GA
34 F
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.