Lamar County, Mississippi
4 ZIP codes · Avg score 81/100 · Grade B · Updated 2026-06-03
Water utilities serving Lamar County's 4 ZIP codes have built a consistent compliance record — the county's above-average grade reflects years of data showing low violation rates and no systemic health concerns.
How Lamar County Compares
How Lamar County Compares
Lamar 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: 2026-06-03
Key Risk Factors
Health risk index: 13.6 (asthma 9.3%, diabetes 12.4%)
Estimated additional annual cost per homeowner: $3,278, driven primarily by sea_level
Infrastructure: 0.31% avg pipe failure probability
34.8% 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: $3,278
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
33,492 housing units in Lamar 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 Lamar County
Remediation costs are relatively manageable for most homeowners in Lamar 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 Lamar 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 Lamar County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | West Lamar Water Assn #1 | 18,491 | 25 |
| 2 | North Lumberton Utility Assn | 4,071 | 19 |
| 3 | Hub Water Association | 3,260 | 19 |
| 4 | City of Lumberton | 1,896 | 18 |
| 5 | City of Purvis | 2,590 | 18 |
23 total water systems serve Lamar County.
All ZIP Codes in Lamar County
4 ZIP codes tracked in Lamar County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 39475 | Purvis | 89 | A | 6 (1 health) | $192K |
| 2 | 39455 | Lumberton | 88 | A | 12 (2 health) | $103K |
| 3 | 39482 | Sumrall | 88 | A | 1 | $194K |
| 4 | 39402 | Hattiesburg | 57 | C | 6 | $255K |
Recommended Buyer Guides for Lamar County
Where county records show a lead exceedance or pre-1978 housing concentration, lead-specific filters and test kits move toward the top of the list.
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
Overview
Lamar County in Mississippi covers 4 ZIP codes with an average Home Safety Score of B (81/100).
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.