City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#10465
Oswego
County, IL
42 F
#10466 Pawhuska
County, OK
42 F
#10467 Pryor
County, OK
42 F
#10468 Raleigh
County, NC
42 F
#10469 Salem
County, IN
42 F
#10470 Schuylerville
County, NY
42 F
#10471 Somerset
County, NJ
42 F
#10472 South Deerfield
County, MA
42 F
#10473 Stagecoach
County, NV
42 F
#10474 Stokes
County, NC
42 F
#10475 Toledo
County, IA
42 F
#10476 Tuttle
County, OK
42 F
#10477 Waldron
County, AR
42 F
#10478 Zellwood
County, FL
42 F
#10479 Belle Vernon
County, PA
41 F
#10480 Charles Town
County, WV
41 F
#10481 Dania Beach
County, FL
41 F
#10482 Falcon Heights
County, TX
41 F
#10483 Maple Glen
County, PA
41 F
#10484 Miami Beach
County, FL
41 F
#10485 Montua
County, UT
41 F
#10486 Mountain Home
County, ID
41 F
#10487 Owensboro
County, KY
41 F
#10488 Pemberton
County, NJ
41 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.