Union County, NC ZIP codes
There are 9 ZIP codes in Union County, NC, in 7 towns, from 28079 to 28174. The largest are 28173 (Waxhaw), 28110 (Monroe) and 28079 (Indian Trail).
The county seat is Monroe.
- ZIP codes
- 9
- Towns
- 7
- County seat
- Monroe
- County FIPS
37179- State
- North Carolina
- Population
- 250,958
- Median household income
- $102,900
- Land area
- 633 sq mi
- Metro area
- Charlotte-Concord-Gastonia
Union County ZIP codes by town
Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.
Map of Union County ZIP codes
The ZIP codes of Union County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Union County in numbers
About 250,958 people live in Union County, in 84,237 households, the 8th most populous of North Carolina's 100 counties. The median household income is $102,900 a year, 42% above the North Carolina median of $72,388 (US: $80,734). The median owner-occupied home is valued at $417,300 (44% above the North Carolina median), and median gross rent is $1,496 a month. The median age is 39.2; 40.5% of adults 25 and over hold a bachelor's degree or higher (35.7% across North Carolina); the average commute takes 30 minutes.
| Population | 250,958 |
|---|---|
| Households | 84,237 |
| Median age | 39.2 |
| Median household income | $102,900 |
| Median home value | $417,300 |
| Median gross rent | $1,496 |
| Bachelor's degree or higher | 40.5% |
| Mean commute | 29.8 min |
| Population density | 397 / sq mi |
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.
Largest towns in Union County
| Town | ZIP codes | Population |
|---|---|---|
| Indian Trail | 1 | 42,036 |
| Monroe | 3 | 36,759 |
| Matthews | 1 | 30,577 |
| Waxhaw | 1 | 22,275 |
| Wingate | 1 | 4,425 |
| Mineral Springs | 1 | 3,314 |
| Marshville | 1 | 2,615 |
Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.
Neighbouring counties
Counties that share a ZIP code with Union County.
Not sure you are in Union County? What county am I in? answers from your location, near a county line included.
Every ZIP code in Union County, with figures
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
28079 | Indian Trail , NC | Standard | 43,035 | $100,516 | $395,700 |
28103 | Marshville , NC | Standard | 10,714 | $76,924 | $248,200 |
28104 | Matthews , NC | Standard | 36,641 | $138,017 | $533,500 |
28108 | Mineral Springs , NC | Standard | 34 | — | — |
28110 | Monroe , NC | Standard | 56,971 | $83,480 | $342,600 |
28111 | Monroe , NC | No street area | — | — | — |
28112 | Monroe , NC | Standard | 28,461 | $80,495 | $296,900 |
28173 | Waxhaw , NC | Standard | 65,274 | $150,597 | $608,000 |
28174 | Wingate , NC | Standard | 9,573 | $71,136 | $226,700 |
Cite this page
zipcodes.pro. “Union County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/nc/county/union
Underlying data is public domain or openly licensed — sources, vintages and licences.