City Water Quality Rankings
11,561 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#11449
Sauk Village
County, IL
0 F
#11450 Schulter
County, OK
0 F
#11451 Seagraves
County, TX
0 F
#11452 Second Mesa
County, AZ
0 F
#11453 Sedona
County, AZ
0 F
#11454 Seward
County, AK
0 F
#11455 Shenandoah
County, IA
0 F
#11456 Shidler
County, OK
0 F
#11457 Shinglehouse
County, PA
0 F
#11458 Shippensburg
County, PA
0 F
#11459 Show Low
County, AZ
0 F
#11460 Sidney
County, NY
0 F
#11461 Silvis
County, IL
0 F
#11462 Sitka
County, AK
0 F
#11463 Skagway
County, AK
0 F
#11464 Snyder
County, OK
0 F
#11465 Soldotna
County, AK
0 F
#11466 South Jacksonville
County, IL
0 F
#11467 South River
County, NJ
0 F
#11468 South Shore
County, KY
0 F
#11469 Spiro
County, OK
0 F
#11470 Springer
County, NM
0 F
#11471 Springerville
County, AZ
0 F
#11472 St Anthony
County, ID
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.