Oklahoma ZIP Code Water Quality
6 ZIP codes with water quality data · State average grade: C
ZIP Codes
6
Avg Grade
C
A or B
17%
D or F
83%
Grade Distribution
How Oklahoma ZIP codes scored
A
0
0%
Excellent
B
1
17%
Good
C
0
0%
Fair
D
4
67%
Poor
F
1
17%
Failing