Wilkinson County, Mississippi
4 ZIP codes · Avg score 79/100 · Grade B · Updated 2026-06-03
Covering 4 ZIP codes, Wilkinson County earns a high grade for tap water — most systems report zero health-based violations, and the overall compliance rate comfortably exceeds federal benchmarks.
How Wilkinson County Compares
How Wilkinson County Compares
Wilkinson County scores 2 points below the Mississippi state average (81/100) and 11 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
Key Risk Factors
Health risk index: 17.7 (asthma 10.5%, diabetes 20.6%)
Estimated additional annual cost per homeowner: $3,640, driven primarily by flood
Infrastructure: 0.402% avg pipe failure probability, 50% of ZIPs at high risk
60.5% of homes built before 1978 (lead paint era)
Violation History (2021–2024)
→ Stable trendEPA violation counts by year across Wilkinson County water systems. Health-based shown in red, total in blue.
Peak year: 2024 with 3 violations. Past 5 years: 5 total (5 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: $3,640
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
15,614 housing units in Wilkinson 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 Wilkinson County
Remediation costs are relatively manageable for most homeowners in Wilkinson 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 Wilkinson 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 Wilkinson County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Town of Centreville | 1,207 | 23 |
| 2 | Buffalo Water Association | 972 | 23 |
| 3 | Town of Woodville | 2,772 | 20 |
| 4 | Bleakhouse Water Association | 412 | 20 |
| 5 | City of Mccomb | 12,041 | 14 |
21 total water systems serve Wilkinson County.
All ZIP Codes in Wilkinson County
4 ZIP codes tracked in Wilkinson County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 39633 | Crosby | 94 | A | 3 (1 health) | $48K |
| 2 | 39648 | Mccomb | 82 | B | 14 (2 health) | $108K |
| 3 | 39631 | Centreville | 72 | B | 11 | $58K |
| 4 | 39669 | Woodville | 68 | C | 9 | $91K |
Recommended Buyer Guides for Wilkinson 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 — 60.5% of homes built before 1978
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
- Best Sump Pumps — Flood is the top compound risk factor
- Best Mold Test Kits — Flood-driven moisture and mold risk
Overview
Wilkinson County in Mississippi covers 4 ZIP codes with an average Home Safety Score of B (79/100).
4 of 4 ZIP codes have recorded EPA violations. 3 health-based violations have been documented.
← 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.