| Official Zip Code Name | Mount Holly |
| Zip Code State | Arkansas |
| Primary County: | Union |
| Area Code | 870 |
| Current Population: | 37081 |
| Racial Majority: | White 62.49% |
| Median Household Income | $55618 |
| Average Adjusted Gross Income | $89060 |
| Time Zone: | 6 |
| Elevation Range | 188 ft. |
| Area | 67.979 Sqm. |
| Coordinates(Y,X) | 33.310940, -92.909392 |