Union County, North Carolina
7 ZIP codes · Avg score 78/100 · Grade B · Updated
ZipCheckup grade for Union County: B.
This ZIP looks solid, with a few items worth a quick check.
Although county size varies, Union County's 7 ZIP codes share reliably safe tap water records and above-average compliance scores.
How Union County Compares
How Union County Compares
Union County scores 0 points above the North Carolina state average (78/100) and 5 points above the national average (73/100).
Data: ZipCheckup Home Safety Score model 4.0.0; EPA SDWIS, UCMR 5, EPA radon zones, EPA AirData Last verified:
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%)
Estimated additional annual cost per homeowner: $957, driven primarily by flood
35.1% 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
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: $957
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
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
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems serving Union County
8 community water systems serving Union County.
- B
- B
- B
- B
- B
- B
Show all 8 water systems
- B
- B
11 total water systems serve Union County.
Systems with the most violations in Union County
5 water systems with recorded EPA violations.
- B
- B
- B
- B
- B
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
Strictly editorial - no paid placements influence which guides appear; the selection draws on NSF certifications and EPA detection records for water systems serving this county.
- 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.