Jefferson Water Quality Report
3 cities ranked · Average grade: B- · Idaho
Avg Score
74.6
Cities Ranked
3
Health Violations
3
PFAS Detected
1
74.6
County avg score
3
Cities ranked
67%
A or B grade
33%
D or F grade
3
Health violations
1
PFAS detected
Grade Distribution
How Jefferson cities scored
A
2
67%
Excellent
B
0
0%
Good
C
0
0%
Fair
D
1
33%
Poor
F
0
0%
Failing
Comparison
County vs Idaho average
▲ 6.4 pts above state average
City Map
Water quality across Jefferson
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Jefferson
Best cities
Worst cities
County context
8.6%
of residents on fluoridated water (CDC, 2020)
Full Rankings