Marion County, Mississippi
3 ZIP codes · Avg score 84/100 · Grade B · Updated 2026-06-03
Tracking 3 ZIP codes in Marion County shows a water safety record well above the national median — violations are isolated exceptions, not recurring patterns.
How Marion County Compares
How Marion County Compares
Marion County scores 3 points above the Mississippi state average (81/100) and 16 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
Key Risk Factors
Health risk index: 16.7 (asthma 10.3%, diabetes 17.2%)
Estimated additional annual cost per homeowner: $3,390, driven primarily by sea_level
Infrastructure: 0.343% avg pipe failure probability
61% 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: $3,390
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
10,548 housing units in Marion 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 Marion County
Remediation costs are relatively manageable for most homeowners in Marion 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 Marion 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 Marion County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | City of Columbia | 5,900 | 7 |
| 2 | Hub Water Association | 3,260 | 7 |
| 3 | Bunker Hill Water Association | 2,700 | 7 |
| 4 | Mt Gilead-improve Water Assn | 2,416 | 7 |
| 5 | Lampton Water Association | 1,983 | 7 |
14 total water systems serve Marion County.
All ZIP Codes in Marion County
3 ZIP codes tracked in Marion County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 39643 | Kokomo | 95 | A | 2 | $110K |
| 2 | 39429 | Columbia | 79 | B | 7 (1 health) | $134K |
| 3 | 39483 | Foxworth | 77 | B | 4 | $84K |
Recommended Buyer Guides for Marion County
Designed to find the guide that fits the county, not the other way around — the system reads EPA detections, FEMA hazard layers, and CDC lead-exposure markers, then outputs the categories that resolve those specific risks for households here, with NSF-certified products surfaced when the matching contaminant appears in the local monitoring data.
- Best Lead Paint Test Kits — 61% of homes built before 1978
Overview
Marion County in Mississippi covers 3 ZIP codes with an average Home Safety Score of B (84/100).
3 of 3 ZIP codes have recorded EPA violations. 1 health-based violation 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.