City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#3505
Platteville
County, CO
94 A
#3506 Pleasant Hill
County, TN
94 A
#3507 Pleasant View
County, UT
94 A
#3508 Plummer
County, ID
94 A
#3509 Plymouth
County, NH
94 A
#3510 Port Edwards
County, WI
94 A
#3511 Port Jervis
County, NY
94 A
#3512 Port Washington
County, WI
94 A
#3513 Poway
County, CA
94 A
#3514 Powell
County, TX
94 A
#3515 Powersite
County, MO
94 A
#3516 Powhattan Point
County, OH
94 A
#3517 Priest River
County, ID
94 A
#3518 Ray
County, ND
94 A
#3519 Red Bluff
County, CA
94 A
#3520 Red Cloud
County, NE
94 A
#3521 Redwood Falls
County, MN
94 A
#3522 Reeves
County, LA
94 A
#3523 Reinholds
County, PA
94 A
#3524 Riceboro
County, GA
94 A
#3525 Ripley
County, OH
94 A
#3526 Rivera
County, TX
94 A
#3527 Roaming Shores
County, OH
94 A
#3528 Robbinsville
County, NJ
94 A
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.