COUNTY REPORT SC

Union County, South Carolina

6 ZIP codes · Home Safety Score unavailable · 0 of 6 tracked ZIP records scored · Updated

Data: ZipCheckup Home Safety Score model 4.0.0; EPA SDWIS, UCMR 5, EPA radon zones, EPA AirData Last verified:

Unavailable
0 of 6 tracked ZIP records scored
6
ZIP Codes
$97K
Median Home Value
$900
Avg Remediation (93% of home value)

ZIP Code Risk Map

Water Quality Map: Union County, South Carolina

Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.

A B C D F

Key Risk Factors

Health risk index: 17.3 (asthma 10.9%, diabetes 19.1%)

Estimated additional annual cost per homeowner: $662, driven primarily by energy_code_gap

67.4% of homes built before 1978 (lead paint era)

Violation History (2022–2023)

→ Stable trend

EPA violation counts by year across Union County water systems. Health-based shown in red, total in blue.

2022
1 (1 health)
2023
4 (4 health)

Peak year: 2023 with 4 violations. Past 5 years: 5 total (5 health-based).

Source: EPA SDWIS historical violations. Data may lag 6–12 months for the most recent year.

County Health Indicators vs National Average

Asthma 10.9% (national: 8.9%)
Diabetes 19.1% (national: 10.5%)
Obesity 44% (national: 32.4%)

Black markers indicate national averages. Source: CDC PLACES, Census ACS.

Infrastructure Overview

1978
Median Build Year
67.4%
Pre-1978 Housing
44/100
Infrastructure Stress Indicator
67%
ZIPs with High Infrastructure Stress
Low
Lead Pipe Risk

Modeled area-level indicator, not a failure probability. Sources: Census ACS housing age, EPA DWINS infrastructure needs, EPA SDWIS violations, and EPA lead indicators.

Compound Risk Breakdown

Estimated additional annual cost per homeowner: $662

Energy Code Gap $324/yr
Water / Lead $200/yr
Flood $200/yr

Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).

Housing Age Distribution

13,147 housing units in Union County

Pre-1940 13%
1940–1959 16%
1960–1979 32%
1980–1999 26%
2000+ 13%

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 Union County

$97K
Median Home Value
$900
Est. Remediation Cost
0.9%
of Home Value
Remediation as % of home value low burden

Remediation costs are relatively manageable for most homeowners in Union 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 Union County residents

Asthma 10.9% (US avg: 8.9%)
Diabetes 19.1% (US avg: 11%)
Obesity 44% (US avg: 32.4%)

Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.

Water systems serving Union County

4 community water systems serving Union County.

Systems with the most violations in Union County

3 water systems with recorded EPA violations.

All ZIP Codes in Union County

6 ZIP codes tracked in Union County.

# ZIP Code City Safety Score Grade Violations Home Value
1 29031 Carlisle $97K
2 29321 Buffalo 0 $62K
3 29353 Jonesville 1 $111K
4 29364 Lockhart $22K
5 29379 Union 7 (4 health) $103K
6 29395 Jonesville

Recommended Buyer Guides for Union County

Filtered against federal data, fitted to local risks.

Overview

Union County in South Carolina covers 6 tracked ZIP records. No Home Safety Score is published because the required model evidence is incomplete for every tracked record; missing evidence is not treated as zero.

2 of 3 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 4 health-based violations appear in the available health breakdown.

← Back to South Carolina Home Safety Profile

Data Sources

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

Frequently Asked Questions

How many water systems serve Union County?
Union County is served by 4 public water systems that supply drinking water to residents across 6 ZIP codes.
What is the biggest environmental risk in Union County?
The primary environmental risk factor in Union County is energy_code_gap. This contributes to an estimated additional annual cost of $662 per homeowner.
How old are homes in Union County?
The median home build year in Union County is 1978. 67.4% of homes were built before 1978, which means they may contain lead-based paint and older plumbing materials.

How to cite this page

APA ZipCheckup. (2026). Union County, South Carolina Home Safety Profile. https://zipcheckup.com/county/south-carolina/union/
BibTeX
@misc{zipcheckup-county-south-carolina-union,
  author = {{ZipCheckup}},
  title  = {{Union County, South Carolina Home Safety Profile}},
  year   = {2026},
  url    = {https://zipcheckup.com/county/south-carolina/union/}
}

Page version: August 2026.

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