Union County, North Carolina
7 ZIP codes · Avg score 78/100 · Grade B
ZipCheckup grade for Union County: B.
This ZIP has a few items worth a quick check.
A high composite grade for Union County is a summary of data, not a water test, so check the report for your own ZIP code among the 7 listed.
How Union County Compares
How Union County Compares
Data: ZipCheckup Home Safety Score model 4.0.0; EPA SDWIS, UCMR 5, EPA radon zones, EPA AirData
ZIP Code Risk Map
Water Quality Map: Union County, North Carolina
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 11.8 (asthma 10.3%, diabetes 10.5%)
Modeled additional annual cost estimate per homeowner: $829, largest modeled factor: Flood
17% of homes built before 1980 (lead paint was banned for residential use in 1978)
County Health Indicators vs National Average
Black markers indicate national averages. Source: CDC PLACES, Census ACS.
Infrastructure Overview
Modeled area-level indicator, not a failure probability. Sources: Census ACS housing age, EPA DWINSA infrastructure needs, EPA SDWIS violations, and EPA lead indicators.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $829
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
74,067 housing units in Union 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 Union County
Modeled remediation costs in Union County can be compared with the median property value; actual costs vary by property.
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
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems mapped to Union County ZIP codes
8 community water systems mapped to Union County ZIP codes; EPA may list more systems serving the county.
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Show all 8 water systems
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11 water systems mapped to Union County ZIP codes in our data; EPA may list more systems serving the county.
Systems with the most violations in Union County
5 water systems with violations in EPA records.
- B
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All ZIP Codes in Union County
7 ZIP codes tracked in Union County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 28108 | Mineral Springs | 83 | B | 1 | — |
| 2 | 28173 | Waxhaw | 83 | B | 1 | $559K |
| 3 | 28110 | Monroe | 81 | B | 5 (1 health) | $303K |
| 4 | 28103 | Marshville | 80 | B | 6 | $231K |
| 5 | 28174 | Wingate | 80 | B | 6 | $212K |
| 6 | 28104 | Matthews | 70 | B | 23 (1 health) | $482K |
| 7 | 28079 | Indian Trail | 69 | C | 27 (2 health) | $352K |
Recommended Buyer Guides for Union County
Which guides appear depends on what the county data show.
- 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
Deep Dive Reports
Detailed analysis for Union County, North Carolina
Overview
Union County in North Carolina covers 7 tracked ZIP records with an average Home Safety Score of B (78/100) across 7 scored records.
7 of 7 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 2 health-based violations appear in the available health breakdown.
← Back to North Carolina Home Safety Profile
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- PFAS screening: EPA UCMR 5
- Radon zones: EPA Map of Radon Zones
- Air quality: EPA AirData annual AQI
- Home values: U.S. Census Bureau ACS (median estimates by ZCTA)
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.