Mount Holly, NC 28120 ZIP Code Profile

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Mount Holly, NC

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ZIP Code 28120: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Mount Holly, NC 28120

Acceptable Alternative
Mt Holly, NC 28120

  • ZIP Code Type: STANDARD
  • County: Gaston County
  • Centroid: Latitude 35.307, Longitude -81.03
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes
  • Businesses Addresses: 474
  • PO Box Addresses: 357
  • Residential Addresses: 9,110
    • Multi-Family Addresses: 398
    • Single Family Addresses: 8,712

The ZIP Code maps and database are updated 4 times per year.
Database updated: February 1, 2018, Maps updated: February 1, 2018.

EXTREMELY LOCAL Demographic Data

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28120 ZIP Code Map

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Mount Holly, NC 28120 Data & Demographics (As of July 1, 2017)


Total Population 22,283
Daytime Population: Workers 6,860
Daytime Population: Residents 11,259
Total Daytime Population (TDP) 18,119
Ratio TDP/Total Population1 0.81
Population in Households 22,110
Population in Familes 18,379
Population in Group Qrtrs 173
Population Density2 670
Diversity Index3 37


Median Household Income $51,083
Average Household Income $69,629
Per Capita Income $27,490


Total Housing Units 9,355 (100%)
Owner Occupied HU 6,274 (67.1%)
Renter Occupied HU 2,460 (26.3%)
Vacant Housing Units 621 ( 6.6%)
Median Home Value $157,232
Average Home Value $186,528


Total Households 8,734
Average Household Size 2.53
Family Households 6,149
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population 1.49% 1.19%
Households 1.46% 1.17%
Families 1.36% 1.09%
Median Household Income   2.04%
Per Capita Income   2.83%

Mount Holly, NC 28120 - Peer Comparisons by Rank and Percentile

The table below compares 28120 to the other 782 ZIP Codes in North Carolina by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 172 78th
Population Density # 155 80th
Diversity Index # 495 37th
Median Household Income # 197 75th
Per Capita Income # 207 74th

Additional comparisons and rankings can be made with a VERY EASY TO USE North Carolina Census Data Comparison Tool.

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