Custer Water Quality Report
2 cities ranked · Average grade: B+ · South Dakota
Avg Score
84.2
Cities Ranked
2
Health Violations
1
PFAS Detected
0
84.2
County avg score
2
Cities ranked
100%
A or B grade
0%
D or F grade
1
Health violations
0
PFAS detected
Grade Distribution
How Custer cities scored
A
1
50%
Excellent
B
1
50%
Good
C
0
0%
Fair
D
0
0%
Poor
F
0
0%
Failing
Comparison
County vs South Dakota average
▲ 2.9 pts above state average
City Map
Water quality across Custer
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Custer
Best cities
Worst cities
Full Rankings