City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#8161
Winterville
County, NC
75 B
#8162 Woodridge
County, NY
75 B
#8163 Yuma
County, CO
75 B
#8164 Abbeville
County, SC
74 C
#8165 Albia
County, IA
74 C
#8166 Ashland
County, PA
74 C
#8167 Atlantic City
County, NJ
74 C
#8168 Atlantis
County, FL
74 C
#8169 Avondale
County, AZ
74 C
#8170 Baldwyn
County, MS
74 C
#8171 Barry
County, IL
74 C
#8172 Batesville
County, AR
74 C
#8173 Batesville
County, MS
74 C
#8174 Baxter
County, IA
74 C
#8175 Belhaven
County, NC
74 C
#8176 Berkeley
County, IL
74 C
#8177 Bishop
County, CA
74 C
#8178 Boca Grande
County, FL
74 C
#8179 Bogue Chitto
County, MS
74 C
#8180 Bonnieville
County, KY
74 C
#8181 Broadview
County, IL
74 C
#8182 Buckner
County, MO
74 C
#8183 Buhl
County, MN
74 C
#8184 Caldwell
County, OH
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.