City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#1777
Pleasant Hill
County, OH
98 A
#1778 Plymouth
County, MN
98 A
#1779 Port Clinton
County, OH
98 A
#1780 Port Ludlow
County, WA
98 A
#1781 Port Matilda
County, PA
98 A
#1782 Port Washington
County, NY
98 A
#1783 Portage
County, MI
98 A
#1784 Portage
County, WI
98 A
#1785 Potterville
County, MI
98 A
#1786 Presque Isle
County, ME
98 A
#1787 Princess Anne
County, MD
98 A
#1788 Prosper
County, TX
98 A
#1789 Ragland
County, AL
98 A
#1790 Rancho Cordova
County, CA
98 A
#1791 Randleman
County, NC
98 A
#1792 Rappahannock Academy
County, VA
98 A
#1793 Raymond
County, NH
98 A
#1794 Raymond
County, WA
98 A
#1795 Red Lodge
County, MT
98 A
#1796 Redmond
County, OR
98 A
#1797 Redmond
County, WA
98 A
#1798 Redway
County, CA
98 A
#1799 Reedley
County, CA
98 A
#1800 Reynoldsburg
County, OH
98 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.