Zip Code 28103 — Marshville, NC
28103 is a ZIP Code associated with Marshville, NC, located within Union. 28103 ranks #6 out of 8 ZIP codes in Union County by population (and #297 out of 853 in NC). The area supports an estimated population of 10,714 residents across Data Pending housing units, with a population density of 27.0 people per square mile.
WorldPlaceData database updated: October 2026
📍 View location on OpenStreetMap (35.003700, -80.353160)
| Data Metric | Local Statistic |
|---|
| Postal / Zip Code | 28103 |
| Primary City | Marshville |
| State / Province | NC |
| County | Union |
| Total Population | 10,714 |
| Median Household Income | Data Pending |
| Total Housing Units | Data Pending |
| Population Density | 27.0 people/sq mi |
| Timezone | America/New_York |
How 28103 Compares
| Metric | ZIP 28103 | Union County | NC State Average |
|---|
| Population | 10,714 | 250,703 (Total) | 10,730,463 (Total) |
| Average ZIP Income | Data Pending | N/A | N/A |
| Population Density | 27.0 /sq mi | -- | -- |
| County Pop Rank | #6 of 8 | -- | -- |
Nearby ZIP Codes
Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →