City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#9481
Overton
County, NV
62 C
#9482 Panguitch
County, UT
62 C
#9483 Paulding
County, MS
62 C
#9484 Paxton
County, MA
62 C
#9485 Petal
County, MS
62 C
#9486 Pickton
County, TX
62 C
#9487 Pleasant Hill
County, IL
62 C
#9488 Poplarville
County, MS
62 C
#9489 Porter
County, TX
62 C
#9490 Portland
County, CT
62 C
#9491 Portola
County, CA
62 C
#9492 Princeton
County, IN
62 C
#9493 Rainier
County, OR
62 C
#9494 Reynoldsville
County, PA
62 C
#9495 Rio Hondo
County, TX
62 C
#9496 Roanoke
County, IL
62 C
#9497 Rochdale
County, MA
62 C
#9498 Salamanca
County, NY
62 C
#9499 Salinas
County, CA
62 C
#9500 Santa Clara
County, UT
62 C
#9501 Sarcoxie
County, MO
62 C
#9502 Saugerties
County, NY
62 C
#9503 Scott Air Force Base
County, IL
62 C
#9504 Scottsboro
County, AL
62 C
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.