Cass County, Missouri
14 ZIP codes · Avg score 61/100 · Grade C · Updated 2026-06-03
Water safety in Cass County is uneven — some of its 14 ZIP codes meet standards cleanly while others carry documented violations.
How Cass County Compares
How Cass County Compares
Cass County scores 8 points below the Missouri state average (69/100) and 7 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Cass County, Missouri
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 13.4 (asthma 10.1%, diabetes 11.6%)
Estimated additional annual cost per homeowner: $793, driven primarily by flood
Infrastructure: 0.333% avg pipe failure probability, 15% of ZIPs at high risk
48.8% of homes built before 1978 (lead paint era)
Violation History (2021–2024)
↑ Worsening trendEPA violation counts by year across Cass County water systems. Health-based shown in red, total in blue.
Peak year: 2023 with 12 violations. Past 5 years: 34 total (34 health-based). Health-based violations are rising versus the prior 2-year window — worth closer monitoring.
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
Sources: Census ACS (housing age), EPA SDWIS (infrastructure risk model), state bridge inspection data.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $793
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
45,351 housing units in Cass 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 Cass County
Remediation costs are relatively manageable for most homeowners in Cass 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 Cass 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 Cass County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Cass County Pwsd 7 | 4,143 | 35 |
| 2 | Cass Bates County Pwsd 12 | 1,335 | 35 |
| 3 | Cass County Pwsd 4 | 1,840 | 26 |
| 4 | Cass County Pwsd 11 | 1,948 | 22 |
| 5 | Cass County Pwsd 9 | 6,063 | 18 |
40 total water systems serve Cass County.
All ZIP Codes in Cass County
14 ZIP codes tracked in Cass County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 64747 | Garden City | 68 | C | 5 (2 health) | $224K |
| 2 | 64090 | Strasburg | 66 | C | 1 | $164K |
| 3 | 64739 | Creighton | 66 | C | 0 | $281K |
| 4 | 64034 | Greenwood | 65 | C | 1 | $312K |
| 5 | 64743 | East Lynne | 65 | C | 0 | $165K |
| 6 | 64083 | Raymore | 64 | C | 2 | $316K |
| 7 | 64701 | Harrisonville | 64 | C | 3 | $234K |
| 8 | 64012 | Belton | 62 | C | 4 | $201K |
| 9 | 64725 | Archie | 61 | C | 14 (4 health) | $221K |
| 10 | 64080 | Pleasant Hill | 59 | C | 3 | $300K |
| 11 | 64078 | Peculiar | 58 | C | 1 | $284K |
| 12 | 64734 | Cleveland | 57 | C | 8 (4 health) | $314K |
| 13 | 64746 | Freeman | 55 | C | 5 | $198K |
| 14 | 64864 | Saginaw | 40 | D | 0 | — |
Recommended Buyer Guides for Cass County
Filtered against federal data, fitted to local risks.
- 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
- Best Mold Test Kits — Flood-driven moisture and mold risk
Deep Dive Reports
Detailed analysis for Cass County, Missouri
Overview
Cass County in Missouri covers 14 ZIP codes with an average Home Safety Score of C (61/100).
11 of 14 ZIP codes have recorded EPA violations. 10 health-based violations have been documented.
← Back to Missouri 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.