Smith County, Mississippi
3 ZIP codes · Avg score 85/100 · Grade A · Updated 2026-06-03
Throughout Smith County, the 3 monitored ZIP codes show low violation rates and healthy safety scores — a pattern that puts the county well above the state baseline for drinking water quality.
How Smith County Compares
How Smith County Compares
Smith County scores 4 points above the Mississippi state average (81/100) and 17 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
Key Risk Factors
Health risk index: 16.9 (asthma 10.2%, diabetes 16.9%)
Estimated additional annual cost per homeowner: $740, driven primarily by flood
Infrastructure: 0.413% avg pipe failure probability, 33% of ZIPs at high risk
54% of homes built before 1978 (lead paint era)
Violation History (2022–2025)
→ Stable trendEPA violation counts by year across Smith County water systems. Health-based shown in red, total in blue.
Peak year: 2024 with 9 violations. Past 5 years: 21 total (21 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: $740
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
5,288 housing units in Smith 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 Smith County
Remediation costs are relatively manageable for most homeowners in Smith 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 Smith 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 Smith County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Okatoma Water Association #1 | 3,981 | 29 |
| 2 | Center Ridge Water Association | 1,708 | 29 |
| 3 | Tri-county W/a #3-summerland | 1,853 | 24 |
| 4 | Sylvarena Water Association | 721 | 24 |
| 5 | Morris Water Association | 887 | 23 |
20 total water systems serve Smith County.
All ZIP Codes in Smith County
3 ZIP codes tracked in Smith County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 39168 | Taylorsville | 94 | A | 6 (1 health) | $97K |
| 2 | 39116 | Mize | 87 | A | 5 | $150K |
| 3 | 39153 | Raleigh | 75 | B | 18 (10 health) | $104K |
Recommended Buyer Guides for Smith County
Methodologically, the recommendation order reflects severity in the federal record: contaminants flagged in EPA detection records for this county outrank generic water concerns, FEMA-confirmed hazard ratings shift emergency-related categories upward, and CDC lead-exposure markers govern when lead-test kits and certified filters appear at the top of the list.
- Best Lead Paint Test Kits — 54% 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
Smith County in Mississippi covers 3 ZIP codes with an average Home Safety Score of A (85/100).
3 of 3 ZIP codes have recorded EPA violations. 11 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.