Dillon County, South Carolina
6 ZIP codes · Avg score 76/100 · Grade B · Updated 2026-07-19
ZipCheckup grade for Dillon: B.
This ZIP looks solid, with a few items worth a quick check.
EPA monitoring reports for Dillon County cover 6 ZIP codes and tell a largely reassuring story - compliance rates are high and health-based violations are far below the national norm.
How Dillon County Compares
How Dillon County Compares
Dillon County scores 2 points below the South Carolina state average (78/100) and 8 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-07-19
ZIP Code Risk Map
Water Quality Map: Dillon County, South Carolina
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 16.6 (asthma 10.6%, diabetes 18.8%)
Estimated additional annual cost per homeowner: $4,625, driven primarily by sea_level
Infrastructure: 0.34% avg pipe failure probability
41.2% 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: $4,625
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
22,110 housing units in Dillon 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 Dillon County
Water safety remediation is a moderate expense relative to home values. Most homeowners can address issues through staged improvements over time.
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 Dillon County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems serving Dillon County
7 community water systems serving Dillon County.
- B
- C
- B
- B
- A
- A
Show all 7 water systems
- B
All ZIP Codes in Dillon County
6 ZIP codes tracked in Dillon County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 29536 | Dillon | 90 | A | 0 | $87K |
| 2 | 29565 | Latta | 90 | A | 0 | $70K |
| 3 | 29511 | Aynor | 73 | B | 0 | $217K |
| 4 | 29547 | Hamer | 73 | B | 0 | $93K |
| 5 | 29592 | Sellers | 73 | B | 0 | $46K |
| 6 | 29568 | Longs | 55 | C | 0 | $235K |
Recommended Buyer Guides for Dillon County
If FEMA records flag flood-top-risk status or EPA samples show PFAS exceedances, the matching logic lifts emergency-water and PFAS-rated filtration into the recommendations - federal data drives the order, not retailer arrangements.
- Best Water Testing Kits — Baseline water quality check for your ZIP
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant peace of mind
Deep Dive Reports
Detailed analysis for Dillon County, South Carolina
Overview
Dillon County in South Carolina covers 6 ZIP codes with an average Home Safety Score of B (76/100).
No EPA violations are recorded for the tracked water systems in Dillon County as of the latest reporting period.
← Back to South Carolina 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.