City Water Quality Rankings in Oklahoma
267 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#145
Howe
County, OK
28 F
#146 Marietta
County, OK
28 F
#147 Cache
County, OK
27 F
#148 Miami
County, OK
26 F
#149 Tishomingo
County, OK
25 F
#150 Wetumka
County, OK
25 F
#151 Hooker
County, OK
24 F
#152 Maud
County, OK
23 F
#153 Arkoma
County, OK
22 F
#154 Vinita
County, OK
19 F
#155 Warner
County, OK
19 F
#156 Newkirk
County, OK
18 F
#157 Sayre
County, OK
18 F
#158 Mcalester
County, OK
17 F
#159 Dewey
County, OK
16 F
#160 Noble
County, OK
16 F
#161 Hastings
County, OK
15 F
#162 Inola
County, OK
14 F
#163 Okemah
County, OK
13 F
#164 Perry
County, OK
13 F
#165 Shattuck
County, OK
13 F
#166 Fletcher
County, OK
8 F
#167 Eufaula
County, OK
7 F
#168 Hydro
County, OK
6 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.