City Water Quality Rankings in Oklahoma
267 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#73
Hinton
County, OK
62 C
#74 Midwest City
County, OK
62 C
#75 Oklahoma City
County, OK
62 C
#76 Bartlesville
County, OK
61 C
#77 Bethany
County, OK
60 C
#78 El Reno
County, OK
59 D
#79 Haskell
County, OK
59 D
#80 Hulbert
County, OK
59 D
#81 Catoosa
County, OK
58 D
#82 Cherokee
County, OK
58 D
#83 Elmore City
County, OK
58 D
#84 Ochelata
County, OK
58 D
#85 Rush Springs
County, OK
58 D
#86 Edmond
County, OK
57 D
#87 Garber
County, OK
56 D
#88 Okeene
County, OK
56 D
#89 Vian
County, OK
56 D
#90 Webbers Falls
County, OK
56 D
#91 Claremore
County, OK
54 D
#92 Newcastle
County, OK
54 D
#93 Ninnekah
County, OK
54 D
#94 Sallisaw
County, OK
54 D
#95 Adair
County, OK
53 D
#96 Pauls Valley
County, OK
53 D
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.