City Water Quality Rankings
11,696 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#11353
Heavener
County, OK
0 F
#11354 Hebbronville
County, TX
0 F
#11355 Helena
County, AR
0 F
#11356 Hendricks
County, WV
0 F
#11357 High Bridge
County, NJ
0 F
#11358 Hildale
County, UT
0 F
#11359 Holdenville
County, OK
0 F
#11360 Holgate
County, OH
0 F
#11361 Hollis
County, OK
0 F
#11362 Homer
County, AK
0 F
#11363 Hominy
County, OK
0 F
#11364 Hoopa
County, CA
0 F
#11365 Hooper Bay
County, AK
0 F
#11366 Horsham
County, PA
0 F
#11367 Hotchkiss
County, CO
0 F
#11368 Hudson
County, MA
0 F
#11369 Hughesville
County, PA
0 F
#11370 Hughson
County, CA
0 F
#11371 Hugo
County, OK
0 F
#11372 Hyden
County, KY
0 F
#11373 Idabel
County, OK
0 F
#11374 Idalou
County, TX
0 F
#11375 Ider
County, AL
0 F
#11376 Indian Head
County, PA
0 F
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.