WaterQ

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.

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