Kansas Water Quality Brief
State: Kansas (KS) Grade: D | Score: 64/100 | National Average: 67/100 (Grade: D) Data as of: 2026-04-30 | Brief generated: 2026-04-30
Key Findings
- Kansas earned a water quality grade of D with an average score of 64/100 — 3 points below the national average.
- ZipCheckup recorded 3,375 total violations across 749 ZIP codes, including 844 health-based violations.
- The worst ZIP code in the state (67657) scored only 3/100, while the best (66088) scored 86/100 — a gap of 83 points.
Worst 5 ZIP Codes
| ZIP | City | County | Score | Grade | Violations |
|---|---|---|---|---|---|
| 67657 | Palco | Rooks | 3/100 | F | 16 |
| 67879 | Tribune | Greeley | 22/100 | F | 19 |
| 67548 | La Crosse | Rush | 28/100 | F | 11 |
| 67423 | Beverly | Lincoln | 28/100 | F | 19 |
| 67451 | Hope | Dickinson | 29/100 | F | 10 |
County Breakdown (Worst 3)
| County | Avg Score | Grade | ZIP Count | Worst ZIP |
|---|---|---|---|---|
| Rooks | 40/100 | D | 5 | 67657 (Palco, 3/100) |
| Pratt | 46/100 | D | 5 | 67066 (Iuka, 33/100) |
| Logan | 46/100 | D | 3 | 67748 (Oakley, 33/100) |
Violation Summary
| Category | Count |
|---|---|
| Total violations | 3,375 |
| Health-based violations | 844 |
| Monitoring/Reporting violations | 2,531 |
| ZIP codes analyzed | 749 |
| Health violations per ZIP (avg) | 1.1 |
Top health-based violation categories:
- Stage 2 DBP Rule (393 violations across 287 ZIP codes)
- Consumer Confidence Report Rule (575 violations across 225 ZIP codes)
- Revised Total Coliform Rule (471 violations across 206 ZIP codes)
PFAS Contamination Status
- PFAS detected in 102 of 246 ZIP codes analyzed (41%).
- 11 ZIP codes with federal PFAS exceedances.
Comparison to National Average
| Metric | KS | National |
|---|---|---|
| Avg Score | 64/100 | 67/100 |
| Grade | D | D |
| Health violations / ZIP | 1.1 | — |
About This Data
Data: ZipCheckup.com | Sources: EPA SDWIS, FEMA, CDC, Census | License: CC BY 4.0
Press contact: [email protected] General contact: [email protected] State page: https://zipcheckup.com/states/kansas/
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