City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#1033
Surry
County, VA
100 A
#1034 Sutherland
County, NE
100 A
#1035 Suttons Bay
County, MI
100 A
#1036 Swanzey
County, NH
100 A
#1037 Sycamore
County, OH
100 A
#1038 Syosset
County, NY
100 A
#1039 Syracuse
County, NE
100 A
#1040 Tamiami Station, Miami
County, FL
100 A
#1041 Tamms
County, IL
100 A
#1042 Taneytown
County, MD
100 A
#1043 Tawas City
County, MI
100 A
#1044 Taylor
County, AR
100 A
#1045 Taylors Falls
County, MN
100 A
#1046 Taylorsville
County, NC
100 A
#1047 Tecumseh
County, MI
100 A
#1048 Templeton
County, CA
100 A
#1049 Texarkana
County, AR
100 A
#1050 Thomasville
County, GA
100 A
#1051 Thomson
County, IL
100 A
#1052 Thousand Oaks
County, CA
100 A
#1053 Three Oaks
County, MI
100 A
#1054 Tibbie
County, AL
100 A
#1055 Tioga
County, ND
100 A
#1056 Tipp City
County, OH
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.