| Place Name | Mount Holly |
| Place Type | City |
| ZIP Code(s) | 28120 |
| County | Gaston County |
| Area Code(s) | 704,980 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 13,506 |
| Population Growth Rate (2010-19) | 29.64% |
| Majority Ethnicity | White 74.53% |
| Metro/Micro Stats Area | Charlotte-Concord-Gastonia, NC-SC |
| US Congressional District(s) | North Carolina 10th |
| State House Districts | 108 |
| State Senate Districts | 43,44 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 74.53% |
| African American | 15.84% |
| Hispanic | 0.03% |
| Asian | 4.99% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 4.62% |