Clay County, Missouri
25 ZIP codes · Avg score 60/100 · Grade C · Updated
ZipCheckup grade for Clay County: C.
A mixed picture - some signals here are worth your attention.
For most households in Clay County, the 25 tracked ZIP codes show adequate but uneven water quality.
How Clay County Compares
How Clay County Compares
Clay County scores 12 points below the Missouri state average (72/100) and 13 points below the national average (73/100).
Data: ZipCheckup Home Safety Score model 4.0.0; EPA SDWIS, UCMR 5, EPA radon zones, EPA AirData Last verified:
ZIP Code Risk Map
Water Quality Map: Clay County, Missouri
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 12.7 (asthma 10.3%, diabetes 10.8%)
Estimated additional annual cost per homeowner: $1,134, driven primarily by flood
50.5% of homes built before 1978 (lead paint era)
Violation History (2023–2025)
→ Stable trendEPA violation counts by year across Clay County water systems. Health-based shown in red, total in blue.
Peak year: 2025 with 3 violations. Past 5 years: 4 total (4 health-based).
Source: EPA SDWIS historical violations. Data may lag 6–12 months for the most recent year.
County Health Indicators vs National Average
Black markers indicate national averages. Source: CDC PLACES, Census ACS.
Infrastructure Overview
Modeled area-level indicator, not a failure probability. Sources: Census ACS housing age, EPA DWINS infrastructure needs, EPA SDWIS violations, and EPA lead indicators.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $1,134
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
119,555 housing units in Clay 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 Clay County
Remediation costs are relatively manageable for most homeowners in Clay 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 Clay County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems serving Clay County
8 community water systems serving Clay County.
- C
- D
- C
- C
- C
- D
Show all 8 water systems
- D
- D
20 total water systems serve Clay County.
Systems with the most violations in Clay County
5 water systems with recorded EPA violations.
- D
- D
- C
- C
- C
All ZIP Codes in Clay County
25 ZIP codes tracked in Clay County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 64165 | Kansas City | 65 | C | 1 | — |
| 2 | 64166 | Kansas City | 65 | C | 1 | $426K |
| 3 | 64106 | Kansas City | 64 | C | 3 | $221K |
| 4 | 64124 | Kansas City | 64 | C | 3 | $109K |
| 5 | 64125 | Kansas City | 64 | C | 3 | $94K |
| 6 | 64155 | Kansas City | 64 | C | 3 | $285K |
| 7 | 64158 | Kansas City | 64 | C | 3 | $352K |
| 8 | 64161 | Kansas City | 63 | C | 5 | $137K |
| 9 | 64167 | Kansas City | 63 | C | 6 | $372K |
| 10 | 64118 | Kansas City | 62 | C | 4 | $206K |
| 11 | 64119 | Kansas City | 62 | C | 6 | $216K |
| 12 | 64117 | Kansas City | 61 | C | 7 | $174K |
| 13 | 64116 | Kansas City | 59 | C | 8 | $227K |
| 14 | 64048 | Holt | 58 | C | 14 (2 health) | $300K |
| 15 | 64060 | Kearney | 56 | C | 16 (2 health) | $322K |
| 16 | 64156 | Kansas City | 55 | C | 26 | $395K |
| 17 | 64157 | Kansas City | 54 | D | 29 | $361K |
| 18 | 64089 | Smithville | 53 | D | 20 (3 health) | $307K |
| 19 | 64024 | Excelsior Springs | 50 | D | 37 | $185K |
| 20 | 64068 | Liberty | 50 | D | 36 | $268K |
| 21 | 64069 | Liberty | — | — | — | |
| 22 | 64072 | Missouri City | — | — | $83K | |
| 23 | 64073 | Mosby | — | — | — | |
| 24 | 64144 | Kansas City | — | — | — | |
| 25 | 64162 | Kansas City | — | — | — |
Recommended Buyer Guides for Clay County
Independent picks. EPA-grounded. Matched here.
- Best Water Filters for PFAS — PFAS detected in 4 ZIP codes
- Best Lead Paint Test Kits — 50.5% of homes built before 1978
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
- Best Radon Test Kits — EPA Radon Zone 1 (highest risk) dominant in county
- Best Sump Pumps — Flood is the top compound risk factor
Deep Dive Reports
Detailed analysis for Clay County, Missouri
Overview
Clay County in Missouri covers 25 tracked ZIP records with an average Home Safety Score of C (60/100) across 20 scored records.
20 of 20 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 3 health-based violations appear in the available health breakdown.
← Back to Missouri Home Safety Profile
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- PFAS screening: EPA UCMR 5
- Radon zones: EPA Map of Radon Zones
- Air quality: EPA AirData annual AQI
- Home values: U.S. Census Bureau ACS (median estimates by ZCTA)
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.