City Water Quality Rankings
11,561 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#11401
Preston
County, OK
0 F
#11402 Prestonsburg
County, KY
0 F
#11403 Prichard
County, AL
0 F
#11404 Princeton
County, NC
0 F
#11405 Providence
County, KY
0 F
#11406 Prudence Island
County, RI
0 F
#11407 Pt. Pleasant
County, WV
0 F
#11408 Putnam
County, CT
0 F
#11409 Quanah
County, TX
0 F
#11410 Quinton
County, OK
0 F
#11411 Quinwood
County, WV
0 F
#11412 Radcliff
County, KY
0 F
#11413 Rainelle
County, WV
0 F
#11414 Randolph
County, WI
0 F
#11415 Randolph
County, VT
0 F
#11416 Ratcliff
County, AR
0 F
#11417 Ratliff City
County, OK
0 F
#11418 Rayville
County, LA
0 F
#11419 Red Lake
County, MN
0 F
#11420 Red Oak
County, IA
0 F
#11421 Rexburg
County, ID
0 F
#11422 Reynolds
County, GA
0 F
#11423 Richgrove
County, CA
0 F
#11424 Richland
County, MS
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.