| Official Name: | Mount Holly, Arkansas |
| Pushpin Map: | Arkansas#USA |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Arkansas |
| Subdivision Type2: | County |
| Subdivision Name2: | Union |
| Population As Of: | 2020 |
| Population Total: | 123 |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 259 |
| Coordinates: | 33.3031°N -92.9539°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 71758 |
| Area Code: | 870 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 2805664 |
Mount Holly is an unincorporated community and census-designated place (CDP) in Union County, Arkansas, United States. Mount Holly is located at the junction of Arkansas highways 57 and 160, 18miles west-northwest of El Dorado. Mount Holly has a post office with ZIP code 71758.[1] It was first listed as a CDP in the 2020 census with a population of 123.[2]
The Smackover-Norphlet School District (formerly the Smackover School District) operates public schools serving the community, including Smackover High School.
It was previously served by the Mount Holly School District, which operated Mt. Holly Elementary School and Mount Holly High School. On July 1, 2004, the former Mt. Holly district was consolidated into the Smackover district.[3] For a period the district continued operating Mt. Holly Elementary. The Smackover district asked for permission from the Arkansas Board of Education to end operations of the Mount Holly School, and received the permission in 2006.[4]
| White alone (NH) | 102 | 82.93% | |
| Black or African American alone (NH) | 5 | 4.07% | |
| Native American or Alaska Native alone (NH) | 0 | 0.00% | |
| Asian alone (NH) | 2 | 1.63% | |
| Pacific Islander alone (NH) | 0 | 0.00% | |
| Some Other Race alone (NH) | 0 | 0.00% | |
| Mixed Race/Multi-Racial (NH) | 5 | 4.07% | |
| Hispanic or Latino (any race) | 9 | 7.32% | |
| Total | 123 | 100.00% |