City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#11593
Satanta
County, KS
0 F
#11594 Sauk Village
County, IL
0 F
#11595 Schulter
County, OK
0 F
#11596 Seagraves
County, TX
0 F
#11597 Second Mesa
County, AZ
0 F
#11598 Sedona
County, AZ
0 F
#11599 Seward
County, AK
0 F
#11600 Shenandoah
County, IA
0 F
#11601 Shidler
County, OK
0 F
#11602 Shinglehouse
County, PA
0 F
#11603 Shippensburg
County, PA
0 F
#11604 Show Low
County, AZ
0 F
#11605 Sidney
County, NY
0 F
#11606 Silvis
County, IL
0 F
#11607 Sitka
County, AK
0 F
#11608 Skagway
County, AK
0 F
#11609 Snyder
County, OK
0 F
#11610 Soldotna
County, AK
0 F
#11611 South Carthage
County, TN
0 F
#11612 South Shore
County, KY
0 F
#11613 Spiro
County, OK
0 F
#11614 Springer
County, NM
0 F
#11615 Springerville
County, AZ
0 F
#11616 St Rose
County, IL
0 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.