Jefferson Water Quality Report
9 cities ranked · Average grade: B · Kansas
Avg Score
77.3
Cities Ranked
9
Health Violations
9
PFAS Detected
2
77.3
County avg score
9
Cities ranked
78%
A or B grade
0%
D or F grade
9
Health violations
2
PFAS detected
Grade Distribution
How Jefferson cities scored
A
1
11%
Excellent
B
6
67%
Good
C
2
22%
Fair
D
0
0%
Poor
F
0
0%
Failing
Comparison
County vs Kansas average
▲ 1.5 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
Worst cities
County context
18.6%
of residents on fluoridated water (CDC, 2020)
Full Rankings
All 9 cities in Jefferson
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Nortonville | A- | 88.2 | 599 | 7 | Health Unresolved | |
| 2 | Mclouth | B+ | 84.9 | 858 | 11 | Health Unresolved | |
| 3 | Winchester | B+ | 82.2 | 4K | 16 | Health Unresolved | |
| 4 | Meriden | B+ | 81.8 | 2K | 36 | Health Unresolved | |
| 5 | Oskaloosa | B+ | 80.9 | 2K | 25 | Health Unresolved | |
| 6 | Valley Falls | B | 75.3 | 4K | 63 | Health Unresolved | |
| 7 | Grantville | B- | 71.1 | 563 | 66 | Health Unresolved | |
| 8 | Perry | C+ | 69.2 | 2K | 33 | Health Unresolved | |
| 9 | Ozawkie | C | 62.2 | 2K | 64 | Health Unresolved |