City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#8281
Perry
County, UT
74 C
#8282 Perryton
County, TX
74 C
#8283 Pierron
County, IL
74 C
#8284 Pierson
County, FL
74 C
#8285 Pikeville
County, TN
74 C
#8286 Pleasant Hill
County, MO
74 C
#8287 Pooler
County, GA
74 C
#8288 Poplar Grove
County, IL
74 C
#8289 Portland
County, IN
74 C
#8290 Pottsboro
County, TX
74 C
#8291 Queen Valley
County, AZ
74 C
#8292 Quinlan
County, TX
74 C
#8293 Randolph
County, VT
74 C
#8294 Redding
County, CA
74 C
#8295 Richfield
County, UT
74 C
#8296 Richmond
County, MO
74 C
#8297 Rimersburg
County, PA
74 C
#8298 River Heights
County, UT
74 C
#8299 Rogersville
County, MO
74 C
#8300 Roselle
County, IL
74 C
#8301 Sanborn
County, NY
74 C
#8302 Sebring
County, FL
74 C
#8303 Seymour
County, TX
74 C
#8304 Silverton
County, OR
74 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.