| Mount Holly - Population Change | FIPS Code=21060 |
| Absolute Population Change, 1970-1980 | 251 |
| Per Cent Population Change, 1970-1980 | 36.54 |
| Absolute Population Change, 1980-1990 | 155 |
| Per Cent Population Change, 1980-1990 | 16.52 |
| Population Estimate, 1996 | 1076 |
| Population Estimate, 2000 | 1282 |
| Population Estimate, 2005 | 1357 |
| Population Estimate, 2010 | 1434 |
| Population Estimate, 2015 | 1497 |
| Absolute Population Change, 1990-1996 | #REF! |
| Per Cent Population Change, 1990-1996 | -1.56 |
| Absolute Population Change, 1996-2005 | 281 |
| Per Cent Population Change, 1996-2005 | 26.12 |
| Absolute Population Change, 2005-2015 | 140 |
| Per Cent Population Change, 2005-2015 | 10.32 |