ZIP code · Mount Holly · North Carolina · United States
ZIP code 28120 — Mount Holly
ZIP code 28120 serves Mount Holly, North Carolina.
- Postal code
- 28120Single source Value from one source, not cross-checked.
- City
- Mount Holly
- County
- Gaston FIPS 37071
- State
- North Carolina
- Country
- United States
- Coordinates
- 35.3119, -81.0306 — precision precise (locality)
View on OpenStreetMap - Population
- 24,363 (ZCTA, ACS 5-year)
- Population density
- 777 / sq mi
- Land area
- 31.4 sq mi (81.3 km²) (ZCTA, ACS 5-year)
- Median household income
- $74,809
- Per-capita income
- $41,857
- Median age
- 40.7
- Households
- 9,946
- Housing units
- 10,590
- Median home value
- $272,500
- Median gross rent
- $1,179 / month
- Congressional district
- NC-14 (119th Congress)
- USDA hardiness zone
- 8a (10 to 15 °F)Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
- Time zone
- America/New_York (UTC−5 / UTC−4 DST)
Tools: compare 28120 with another ZIP · ZIPs within 25 miles · distance from 28120
Map of ZIP code 28120
Climate — monthly normals
Warmest month Jul (avg high 91°F), coldest Jan (avg low 31°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 53 | 57 | 65 | 74 | 81 | 87 | 91 | 89 | 84 | 74 | 64 | 56 |
| Avg low °F | 31 | 34 | 40 | 50 | 58 | 67 | 70 | 69 | 63 | 51 | 40 | 35 |
| Precip in | 3.8 | 3.3 | 3.5 | 3.5 | 3.5 | 4.3 | 3.5 | 4.5 | 3.7 | 3.4 | 3.0 | 3.8 |
NOAA 1991–2020 climate normals from the nearest station: GASTONIA (7.1 mi) · NOAA NCEI
Places in ZIP 28120
- 5 schools
- 1 hospitals & clinics
- 2 doctors & dentists
- 1 pharmacies
- 2 supermarkets
- 15 restaurants & cafés
- 2 bars & pubs
- 10 parks
- 2 playgrounds
- 2 gyms & sports centres
- 1 libraries
- 14 places of worship
- 2 banks
- 3 police & fire stations
Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology
About this page
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page