Adair County, Missouri
4 ZIP codes · Avg score 73/100 · Grade B · Updated 2026-06-03
Water systems in Adair County serve 4 ZIP codes with few reported safety events.
How Adair County Compares
How Adair County Compares
Adair County scores 4 points above the Missouri state average (69/100) and 5 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
Key Risk Factors
Health risk index: 12.3 (asthma 10.9%, diabetes 10%)
Estimated additional annual cost per homeowner: $530, driven primarily by flood
Infrastructure: 0.412% avg pipe failure probability, 25% of ZIPs at high risk
67.5% 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: $530
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
10,689 housing units in Adair 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 Adair County
Remediation costs are relatively manageable for most homeowners in Adair 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 Adair 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 Adair County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Adair County Pwsd 1 | 7,500 | 7 |
| 2 | Kirksville Public Water System | 17,566 | 4 |
| 3 | Knox County Public Water & Sewer District 1 | 3,947 | 3 |
| 4 | Brashear Public Water System | 288 | 3 |
| 5 | Novinger Public Water System | 550 | 2 |
All ZIP Codes in Adair County
4 ZIP codes tracked in Adair County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 63533 | Brashear | 82 | B | 3 | $187K |
| 2 | 63559 | Novinger | 82 | B | 2 | $133K |
| 3 | 63501 | Kirksville | 76 | B | 2 (2 health) | $160K |
| 4 | 63540 | Gibbs | 53 | D | 0 | $87K |
Recommended Buyer Guides for Adair County
Federal and certification sources drive the ordering: EPA monitoring data, NSF certifications, FEMA flood maps, and CDC lead guidance — guides surface only when county data warrants them.
- Best Lead Paint Test Kits — 67.5% of homes built before 1978
- Best Sump Pumps — Flood is the top compound risk factor
- Best Mold Test Kits — Flood-driven moisture and mold risk
Overview
Adair County in Missouri covers 4 ZIP codes with an average Home Safety Score of B (73/100).
3 of 4 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.