Wyandotte County, Kansas
16 ZIP codes · Avg score 62/100 · Grade C · Updated 2026-06-04
Wyandotte County shows moderate water quality across its 16 ZIP codes — some areas carry violations worth monitoring.
How Wyandotte County Compares
How Wyandotte County Compares
Wyandotte County scores 2 points below the Kansas state average (64/100) and 6 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-04
ZIP Code Risk Map
Water Quality Map: Wyandotte County, Kansas
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 13.8 (asthma 10.1%, diabetes 14.5%)
Estimated additional annual cost per homeowner: $1,126, driven primarily by flood
Infrastructure: 0.339% avg pipe failure probability, 38% of ZIPs at high risk
77.6% of homes built before 1978 (lead paint era)
County Health Indicators vs National Average
Black markers indicate national averages. Source: CDC PLACES, Census ACS.
Infrastructure Overview
Sources: Census ACS (housing age), EPA SDWIS (infrastructure risk model), state bridge inspection data.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $1,126
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
69,249 housing units in Wyandotte County
Source: U.S. Census Bureau ACS B25034 (Year Structure Built).
Water Safety Affordability
How much it costs to fix water issues relative to home values in Wyandotte County
Remediation costs are relatively manageable for most homeowners in Wyandotte County, representing a small fraction of property value.
Remediation includes water filtration, lead abatement, radon mitigation, and flood protection where applicable. Source: Census ACS, EPA SDWIS.
Health Outcomes vs National Average
CDC PLACES data for Wyandotte County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water Systems with Most Violations
Top 5 systems in Wyandotte County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Kansas City Board of Public Utilities | 152,960 | 18 |
| 2 | Water District 1 of Johnson Company | 482,000 | 15 |
| 3 | City of Bonner Springs, | 7,805 | 3 |
| 4 | Leavenworth Company Rwd 7 | 3,000 | 3 |
| 5 | Suburban Water Company | 4,700 | 3 |
9 total water systems serve Wyandotte County.
All ZIP Codes in Wyandotte County
16 ZIP codes tracked in Wyandotte County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 66101 | Kansas City | 66 | C | 1 | $77K |
| 2 | 66112 | Kansas City | 66 | C | 1 | $186K |
| 3 | 66115 | Kansas City | 66 | C | 1 | — |
| 4 | 66118 | Kansas City | 66 | C | 1 | — |
| 5 | 66102 | Kansas City | 61 | C | 1 | $105K |
| 6 | 66104 | Kansas City | 61 | C | 1 | $118K |
| 7 | 66105 | Kansas City | 61 | C | 1 | $62K |
| 8 | 66106 | Kansas City | 61 | C | 1 | $155K |
| 9 | 66109 | Kansas City | 61 | C | 1 | $256K |
| 10 | 66110 | Kansas City | 61 | C | 1 | — |
| 11 | 66111 | Kansas City | 61 | C | 1 | $132K |
| 12 | 66117 | Kansas City | 61 | C | 1 | — |
| 13 | 66119 | Kansas City | 61 | C | 1 | — |
| 14 | 66160 | Kansas City | 61 | C | 1 | — |
| 15 | 66012 | Bonner Springs | 59 | C | 3 | $248K |
| 16 | 66103 | Kansas City | 56 | C | 1 | $119K |
Recommended Buyer Guides for Wyandotte County
Editorial methodology pairs each documented risk in this county with the buyer category that addresses it, drawing on water-quality detections, housing-stock lead exposure, EPA Radon Zone designation, and FEMA flood and wildfire ratings. NSF-certified options surface where applicable, and products that match the specific contaminant take priority.
- Best Lead Paint Test Kits — 77.6% of homes built before 1978
- Best Radon Test Kits — EPA Radon Zone 1 (highest risk) dominant in county
- Best Sump Pumps — Flood is the top compound risk factor
- Best Mold Test Kits — Flood-driven moisture and mold risk
Deep Dive Reports
Detailed analysis for Wyandotte County, Kansas
Overview
Wyandotte County in Kansas covers 16 ZIP codes with an average Home Safety Score of C (62/100).
16 of 16 ZIP codes have recorded EPA violations. All violations are monitoring/reporting type.
← Back to Kansas water quality report
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Home values: U.S. Census Bureau ACS (median estimates by ZCTA)
Updated daily.