City Water Quality Rankings in Oklahoma
267 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#97
Stratford
County, OK
52 D
#98 Agra
County, OK
51 D
#99 Alva
County, OK
51 D
#100 Mangum
County, OK
51 D
#101 Nowata
County, OK
50 D
#102 Broken Arrow
County, OK
49 D
#103 Guthrie
County, OK
49 D
#104 Burns Flat
County, OK
48 D
#105 Coweta
County, OK
48 D
#106 Fort Still
County, OK
48 D
#107 Goldsby
County, OK
48 D
#108 Pawhuska
County, OK
48 D
#109 Afton
County, OK
47 D
#110 Cleveland
County, OK
47 D
#111 Shawnee
County, OK
47 D
#112 Tahlequah
County, OK
47 D
#113 Walters
County, OK
47 D
#114 Gore
County, OK
46 D
#115 Gould
County, OK
46 D
#116 Kingston
County, OK
46 D
#117 Oologah
County, OK
46 D
#118 Terlton
County, OK
46 D
#119 Beaver
County, OK
43 F
#120 Lone Grove
County, OK
42 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.