Atchison County, Missouri
5 ZIP codes · Avg score 63/100 · Grade C · Updated 2026-06-03
Water systems across Atchison County's 5 ZIP codes produce average compliance results overall — pockets with documented violations exist, and the variation between areas makes ZIP-level lookup the most useful tool for residents here.
How Atchison County Compares
How Atchison County Compares
Atchison County scores 6 points below the Missouri state average (69/100) and 5 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Atchison County, Missouri
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 16.2 (asthma 10.5%, diabetes 14.9%)
Estimated additional annual cost per homeowner: $1,780, driven primarily by flood
Infrastructure: 0.458% avg pipe failure probability, 100% of ZIPs at high risk
86.8% 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: $1,780
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
2,716 housing units in Atchison 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 Atchison County
Water safety remediation is a moderate expense relative to home values. Most homeowners can address issues through staged improvements over time.
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 Atchison 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 Atchison County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Atchison County Pwsd 1 | 700 | 3 |
| 2 | Rock Port Public Water System | 1,318 | 2 |
| 3 | Atchison County Wholesale Water Commission | 25 | 2 |
| 4 | Westboro Public Water System | 115 | 1 |
| 5 | Fairfax Public Water System | 638 | 0 |
6 total water systems serve Atchison County.
All ZIP Codes in Atchison County
5 ZIP codes tracked in Atchison County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 64498 | Westboro | 70 | B | 1 | $71K |
| 2 | 64496 | Watson | 64 | C | 0 | $105K |
| 3 | 64482 | Rock Port | 63 | C | 2 | $116K |
| 4 | 64446 | Fairfax | 60 | C | 0 | $102K |
| 5 | 64491 | Tarkio | 57 | C | 0 | $91K |
Recommended Buyer Guides for Atchison County
Independent picks. EPA-grounded. Matched here.
- Best Lead Paint Test Kits — 86.8% of homes built before 1978
- 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 Atchison County, Missouri
Overview
Atchison County in Missouri covers 5 ZIP codes with an average Home Safety Score of C (63/100).
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.