City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#9937
Kingstree
County, SC
54 D
#9938 Kissimmee
County, FL
54 D
#9939 Lady Lake
County, FL
54 D
#9940 Leominster
County, MA
54 D
#9941 Linville
County, NC
54 D
#9942 Malvern
County, IA
54 D
#9943 Maquoketa
County, IA
54 D
#9944 Napoleonville
County, LA
54 D
#9945 Newport
County, OH
54 D
#9946 Norco
County, CA
54 D
#9947 Okeene
County, OK
54 D
#9948 Oskaloosa
County, IA
54 D
#9949 Paducah
County, TX
54 D
#9950 Pala
County, CA
54 D
#9951 Riverside
County, IL
54 D
#9952 Rock Falls
County, IL
54 D
#9953 Rowland
County, NC
54 D
#9954 Santa Isabel
County, PR
54 D
#9955 Seminole
County, TX
54 D
#9956 Senath
County, MO
54 D
#9957 Spring Lake
County, NC
54 D
#9958 St Elmo
County, IL
54 D
#9959 Texarkana
County, TX
54 D
#9960 Venice
County, FL
54 D
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.