City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#1081
Upper Sandusky
County, OH
100 A
#1082 Usag Fort Belvoir
County, VA
100 A
#1083 Valley City
County, ND
100 A
#1084 Valley Head
County, AL
100 A
#1085 Vanceboro
County, NC
100 A
#1086 Vernon
County, CA
100 A
#1087 Victoria
County, MN
100 A
#1088 Victory Mills
County, NY
100 A
#1089 Vienna
County, OH
100 A
#1090 Vinton
County, TX
100 A
#1091 W. Alexandria
County, OH
100 A
#1092 Wadena
County, MN
100 A
#1093 Wahoo
County, NE
100 A
#1094 Waitsburg
County, WA
100 A
#1095 Wakeeney
County, KS
100 A
#1096 Wakefield
County, MI
100 A
#1097 Wakefield
County, VA
100 A
#1098 Wallace
County, ID
100 A
#1099 Wallace
County, SC
100 A
#1100 Walton
County, KS
100 A
#1101 Wantage
County, NJ
100 A
#1102 Wantagh
County, NY
100 A
#1103 Wapakoneta
County, OH
100 A
#1104 Warm Springs
County, VA
100 A
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.