City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#4249
Pleasant View
County, TN
92 A
#4250 Poplar
County, MT
92 A
#4251 Poplar Bluff
County, MO
92 A
#4252 Port Austin
County, MI
92 A
#4253 Port Orford
County, OR
92 A
#4254 Port Wentworth
County, GA
92 A
#4255 Portland
County, ME
92 A
#4256 Pouslbo
County, WA
92 A
#4257 Pulaski
County, NY
92 A
#4258 Purdin
County, MO
92 A
#4259 Purdon
County, TX
92 A
#4260 Putnam
County, CT
92 A
#4261 Putney
County, VT
92 A
#4262 Quincy
County, MA
92 A
#4263 Quinnesec
County, MI
92 A
#4264 Quinwood
County, WV
92 A
#4265 Quitman
County, AR
92 A
#4266 Rainbow City
County, AL
92 A
#4267 Rancho Cucamonga
County, CA
92 A
#4268 Rancho Murieta
County, CA
92 A
#4269 Randolph Center
County, VT
92 A
#4270 Ransom Canyon
County, TX
92 A
#4271 Redgranite
County, WI
92 A
#4272 Reedsburg
County, WI
92 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.