Henry County, Missouri
6 ZIP codes · Avg score 78/100 · Grade B · Updated 2026-06-03
Henry County's tap water quality puts it in the upper tier nationally; the 6 ZIP codes here record few health-based violations.
How Henry County Compares
How Henry County Compares
Henry County scores 9 points above the Missouri state average (69/100) and 10 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Henry County, Missouri
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 15.8 (asthma 10.8%, diabetes 14.4%)
Estimated additional annual cost per homeowner: $345, driven primarily by water_lead
Infrastructure: 0.398% avg pipe failure probability, 50% of ZIPs at high risk
60% of homes built before 1978 (lead paint era)
Violation History (2021–2025)
→ Stable trendEPA violation counts by year across Henry County water systems. Health-based shown in red, total in blue.
Peak year: 2024 with 4 violations. Past 5 years: 7 total (7 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
Sources: Census ACS (housing age), EPA SDWIS (infrastructure risk model), state bridge inspection data.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $345
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
9,519 housing units in Henry 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 Henry County
Remediation costs are relatively manageable for most homeowners in Henry 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 Henry 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 Henry County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Harry S Truman Pwsd 2 | 2,700 | 18 |
| 2 | Henry County Pwsd 3 | 2,993 | 8 |
| 3 | Henry County Pwsd 4 | 1,140 | 8 |
| 4 | Henry County Water Company | 11,373 | 6 |
| 5 | Henry County Pwsd 1 | 258 | 6 |
13 total water systems serve Henry County.
All ZIP Codes in Henry County
6 ZIP codes tracked in Henry County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 64788 | Urich | 83 | B | 0 | $161K |
| 2 | 65323 | Calhoun | 83 | B | 0 | $170K |
| 3 | 64740 | Deepwater | 81 | B | 6 (2 health) | $123K |
| 4 | 64726 | Blairstown | 79 | B | 2 | $193K |
| 5 | 64735 | Clinton | 71 | B | 6 | $165K |
| 6 | 64770 | Montrose | 71 | B | 6 | $127K |
Recommended Buyer Guides for Henry County
Eight risk categories drive the selection — PFAS exceedance, lead above EPA action level, pre-1978 housing share, EPA Radon Zone 1, flood-top-risk, wildfire-top-risk, multi-contaminant load, and a baseline fallback — and each category maps to a specific buyer-guide track that surfaces when the county data hits its threshold for that hazard signal.
- Best Lead Paint Test Kits — 60% of homes built before 1978
Deep Dive Reports
Detailed analysis for Henry County, Missouri
Overview
Henry County in Missouri covers 6 ZIP codes with an average Home Safety Score of B (78/100).
4 of 6 ZIP codes have recorded EPA violations. 2 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.