Walthall County, Mississippi
2 ZIP codes · Avg score 81/100 · Grade B · Updated 2026-06-04
Homeowners across Walthall County's 2 ZIP codes live with water safety scores that generally beat state and national averages.
How Walthall County Compares
How Walthall County Compares
Walthall County scores 0 points above the Mississippi state average (81/100) and 13 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-04
Key Risk Factors
Health risk index: 16.8 (asthma 10.3%, diabetes 17.8%)
Estimated additional annual cost per homeowner: $3,515, driven primarily by flood
Infrastructure: 0.305% avg pipe failure probability
54% 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: $3,515
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
6,563 housing units in Walthall 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 Walthall County
Remediation costs are relatively manageable for most homeowners in Walthall 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 Walthall 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 Walthall County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Improve Water Association | 2,666 | 4 |
| 2 | Lexie Water Association, Inc. | 4,290 | 4 |
| 3 | Kokomo-shiloh Water Assn. | 2,344 | 4 |
| 4 | West Marion Water Association | 1,571 | 4 |
| 5 | Magees Creek W/a-north | 9,792 | 3 |
9 total water systems serve Walthall County.
All ZIP Codes in Walthall County
2 ZIP codes tracked in Walthall County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 39478 | Sandy Hook | 88 | A | 1 | $112K |
| 2 | 39667 | Tylertown | 74 | B | 3 | $125K |
Recommended Buyer Guides for Walthall County
Below: editorial picks, no sponsored placements.
- Best Lead Paint Test Kits — 54% 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
Walthall County in Mississippi covers 2 ZIP codes with an average Home Safety Score of B (81/100).
2 of 2 ZIP codes have recorded EPA violations. All violations are monitoring/reporting type.
← Back to Mississippi 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.