WaterQ

City Water Quality Rankings in Oklahoma

272 cities ranked by drinking water quality.

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Popular city water quality comparisons

Erick, OK vs Quapaw, OK Compare → Seminole, OK vs Wyandotte, OK Compare → Allen, OK vs Concho, OK Compare → Stillwell, OK vs Tinker Afb, OK Compare →

Trending Cities

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#145
Newkirk
County, OK
34 F
#146
Yale
County, OK
34 F
#147
Kansas
County, OK
32 F
#148
Wister
County, OK
31 F
#149
Comanche
County, OK
30 F
#150
Welch
County, OK
30 F
#151
Locust Grove
County, OK
29 F
#152
Terlton
County, OK
29 F
#153
Marietta
County, OK
28 F
#154
Wayne
County, OK
28 F
#155
Ardmore
County, OK
27 F
#156
Cache
County, OK
27 F
#157
Miami
County, OK
26 F
#158
Wetumka
County, OK
25 F
#159
Tishomingo
County, OK
24 F
#160
Maud
County, OK
23 F
#161
Howe
County, OK
20 F
#162
Noble
County, OK
20 F
#163
Muskogee
County, OK
19 F
#164
Warner
County, OK
19 F
#165
Disney
County, OK
18 F
#166
Sayre
County, OK
18 F
#167
Hydro
County, OK
17 F
#168
Vinita
County, OK
17 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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