City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#10921
Roulette
County, PA
21 F
#10922 Anthony
County, TX
20 F
#10923 East Liverpool
County, OH
20 F
#10924 Groesbeck
County, TX
20 F
#10925 Highlands
County, NC
20 F
#10926 Howe
County, OK
20 F
#10927 Jemez Springs
County, NM
20 F
#10928 Jenkins
County, KY
20 F
#10929 Mountainair
County, NM
20 F
#10930 Noble
County, OK
20 F
#10931 North Edwards
County, CA
20 F
#10932 Olive Hill
County, KY
20 F
#10933 Shavano Park
County, TX
20 F
#10934 Somerton
County, AZ
20 F
#10935 Warrensburg
County, NY
20 F
#10936 Wilmington
County, IL
20 F
#10937 Yabucoa
County, PR
20 F
#10938 Crawford
County, GA
19 F
#10939 Madison
County, FL
19 F
#10940 Many
County, LA
19 F
#10941 Mount Gilead
County, NC
19 F
#10942 Muskogee
County, OK
19 F
#10943 New Berlin
County, IL
19 F
#10944 Warner
County, OK
19 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.