Knox County, Missouri
5 ZIP codes · Avg score 64/100 · Grade C · Updated 2026-06-03
In recent monitoring cycles, Knox County's 5 ZIP codes show a split record — several have documented water safety violations.
How Knox County Compares
How Knox County Compares
Knox County scores 5 points below the Missouri state average (69/100) and 4 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Knox County, Missouri
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 15.9 (asthma 11%, diabetes 14.6%)
Estimated additional annual cost per homeowner: $578, driven primarily by water_lead
Infrastructure: 0.416% avg pipe failure probability, 60% of ZIPs at high risk
70.8% 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: $578
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
1,805 housing units in Knox 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 Knox County
Remediation costs are relatively manageable for most homeowners in Knox 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 Knox County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water Systems with Most Violations
Top 4 systems in Knox County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Knox County Public Water & Sewer District 1 | 3,947 | 10 |
| 2 | EDINA PWS | 1,014 | 5 |
| 3 | SCOTLAND COUNTY CONS PWSD 1 | 3,360 | 0 |
| 4 | Adair County Pwsd 1 | 7,500 | 0 |
All ZIP Codes in Knox County
5 ZIP codes tracked in Knox County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 63446 | Knox City | 79 | B | 5 | $275K |
| 2 | 63537 | Edina | 71 | B | 5 | $105K |
| 3 | 63531 | Baring | 63 | C | 0 | — |
| 4 | 63460 | Novelty | 53 | D | 0 | $85K |
| 5 | 63547 | Hurdland | 53 | D | 0 | $80K |
Recommended Buyer Guides for Knox County
Filtered against EPA monitoring data and CDC lead-exposure guidance, the guides below skip the generic catalog and connect directly to the contaminants and hazards on file here.
- Best Lead Paint Test Kits — 70.8% of homes built before 1978
Deep Dive Reports
Detailed analysis for Knox County, Missouri
Overview
Knox County in Missouri covers 5 ZIP codes with an average Home Safety Score of C (64/100).
2 of 5 ZIP codes have recorded EPA violations. All violations are monitoring/reporting type.
← 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.