WaterQ

City Water Quality Rankings in Oklahoma

267 cities ranked by drinking water quality.

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Popular city water quality comparisons

Erick, OK vs Mcloud, OK Compare → Quapaw, OK vs Wyandotte, OK Compare → Allen, OK vs Concho, OK Compare → Tinker Afb, OK vs Westville, OK Compare →

Trending Cities

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#193
Coffeyville
County, OK
0 F
#194
Colbert
County, OK
0 F
#195
Commerce
County, OK
0 F
#196
Cookson
County, OK
0 F
#197
Cordell
County, OK
0 F
#198
Council Hill
County, OK
0 F
#199
Crowder
County, OK
0 F
#200
Davis
County, OK
0 F
#201
Disney
County, OK
0 F
#202
Duncan
County, OK
0 F
#203
Fairfax
County, OK
0 F
#204
Fairview
County, OK
0 F
#205
Frederick
County, OK
0 F
#206
Geary
County, OK
0 F
#207
Grandfield
County, OK
0 F
#208
Grant
County, OK
0 F
#209
Grove
County, OK
0 F
#210
Harrah
County, OK
0 F
#211
Hartshorne
County, OK
0 F
#212
Haworth
County, OK
0 F
#213
Heavener
County, OK
0 F
#214
Hennessey
County, OK
0 F
#215
Holdenville
County, OK
0 F
#216
Hollis
County, OK
0 F

Frequently Asked Questions

How are city water quality rankings calculated in Oklahoma?

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 cities in Oklahoma?

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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