Kansas Tap Water Quality Report
Water quality grades, lead levels, and violation data for all 749 ZIP codes in Kansas
ZIP Codes
749
Health Violations (5yr)
844
Avg Safety Score
64.2/100
High Lead Risk ZIPs
73%
Overview: Drinking Water in Kansas
The tap water quality in Kansas currently sits near the national average, registering a composite safety score of 64.2/100 across 749 monitored ZIP codes. While a significant portion of the state maintains adequate water quality and full compliance with federal standards, 2% of ZIP codes in Kansas have received a failing grade due to recent compliance issues. Monitoring data from the EPA indicates that while the majority of residents receive safe tap water, localized issues remain a challenge for several municipal systems.
The state's water infrastructure has experienced significant compliance hurdles recently, logging a staggering 844 health-based violations over the past 5-year monitoring window out of 3,375 total violations. When a state registers this volume of health-based violations, it often points to systemic challenges such as aging distribution networks, agricultural runoff affecting groundwater, or underfunded rural water systems. Kansas Department of Health and Environment is responsible for enforcing corrective actions and penalizing systems that repeatedly fail to meet safe drinking water standards.
One of the most pressing concerns for Kansas residents is the elevated risk of lead exposure. EPA models and historical monitoring indicate that 73% of ZIP codes in Kansas are classified as High or Very High risk for lead. This is frequently associated with older housing stock built before the 1986 federal ban on lead pipes and solder. Residents living in older homes should strongly consider having their tap water independently tested and utilizing a certified NSF/ANSI 53 water filter for drinking and cooking.
Surface Water
51.5%
of ZIP codes
Total Violations
3,375
5-year record
Grade A ZIPs
1
0% of state
Grade F ZIPs
16
2% of state
Water Quality Grade Distribution in Kansas
How do Kansas's 749 ZIP codes stack up by water quality grade?
Water Quality by City in Kansas
Click any city to view ZIP code-level water quality reports
Wichita
32 ZIPs
Topeka
31 ZIPs
Kansas City
15 ZIPs
Overland Park
13 ZIPs
Shawnee
6 ZIPs
Lawrence
5 ZIPs
Lenexa
5 ZIPs
Olathe
4 ZIPs
Mission
4 ZIPs
Manhattan
4 ZIPs
Leawood
3 ZIPs
Hutchinson
3 ZIPs
Shawnee Mission
2 ZIPs
Salina
2 ZIPs
Liberal
2 ZIPs
Atchison
1 ZIP
Baldwin City
1 ZIP
Basehor
1 ZIP
Bendena
1 ZIP
Blue Mound
1 ZIP
Bonner Springs
1 ZIP
Bucyrus
1 ZIP
Centerville
1 ZIP
Colony
1 ZIP
Cummings
1 ZIP
Denton
1 ZIP
De Soto
1 ZIP
Clearview City
1 ZIP
Easton
1 ZIP
Edgerton
1 ZIP
Effingham
1 ZIP
Elwood
1 ZIP
Eudora
1 ZIP
Fontana
1 ZIP
Fort Leavenworth
1 ZIP
Gardner
1 ZIP
New Century
1 ZIP
Garnett
1 ZIP
Greeley
1 ZIP
Highland
1 ZIP
๐ Highest Rated ZIP Codes in Kansas
โ Lowest Rated ZIP Codes in Kansas
Common Drinking Water Contaminants in Kansas
The following are common regulated contaminants found in Kansas drinking water based on EPA violation records. Click any contaminant to learn about EPA safety limits and health effects.
Source: EPA Safe Drinking Water Act Maximum Contaminant Level regulations. For the complete list of regulated contaminants and MCLs, see the Water Quality Safety Guide.
Frequently Asked Questions โ Kansas Drinking Water
Is tap water generally safe to drink in Kansas?+
What are the biggest water quality issues in Kansas?+
Who regulates and enforces drinking water standards in Kansas?+
Where does Kansas get its drinking water?+
How do I find the official water quality report for my home in Kansas?+
View All 749 ZIP Codes in Kansas
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