Fairfield County, South Carolina
5 ZIP codes · Avg score 73/100 · Grade B · Updated 2026-06-04
Fairfield County earns a high water safety grade — 5 ZIP codes tracked, virtually all compliant.
How Fairfield County Compares
How Fairfield County Compares
Fairfield County scores 5 points below the South Carolina state average (78/100) and 5 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-04
ZIP Code Risk Map
Water Quality Map: Fairfield 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 (asthma 10.3%, diabetes 18.5%)
Estimated additional annual cost per homeowner: $934, driven primarily by flood
Infrastructure: 0.377% avg pipe failure probability, 25% of ZIPs at high risk
56.8% of homes built before 1978 (lead paint era)
Violation History (2021–2024)
→ Stable trendEPA violation counts by year across Fairfield County water systems. Health-based shown in red, total in blue.
Peak year: 2024 with 3 violations. Past 5 years: 4 total (4 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: $934
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
7,222 housing units in Fairfield 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 Fairfield County
Remediation costs are relatively manageable for most homeowners in Fairfield 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 Fairfield 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 Fairfield County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Jenkinsville Water Company (sc2020001) | 2,550 | 6 |
| 2 | WINNSBORO TOWN OF (2010001) | 10,391 | 2 |
| 3 | Midcounty Water District 2 (sc2020004) | 3,500 | 2 |
| 4 | COLUMBIA CITY OF (SC4010001) | 319,500 | 2 |
| 5 | Midcounty Water District 1 (2020002) | 1,487 | 2 |
6 total water systems serve Fairfield County.
All ZIP Codes in Fairfield County
5 ZIP codes tracked in Fairfield County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 29065 | Jenkinsville | 98 | A | 6 (1 health) | $94K |
| 2 | 29180 | Winnsboro | 69 | C | 2 | $114K |
| 3 | 29122 | Peak | 66 | C | 0 | $175K |
| 4 | 29132 | Rion | 66 | C | 0 | — |
| 5 | 29074 | Liberty Hill | 65 | C | 0 | — |
Recommended Buyer Guides for Fairfield 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 — 56.8% of homes built before 1978
- Best Sump Pumps — Flood is the top compound risk factor
- Best Mold Test Kits — Flood-driven moisture and mold risk
Deep Dive Reports
Detailed analysis for Fairfield County, South Carolina
Overview
Fairfield County in South Carolina covers 5 ZIP codes with an average Home Safety Score of B (73/100).
2 of 5 ZIP codes have recorded EPA violations. 1 health-based violation have been documented.
← 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.