| Plymouth Town - Population Change | FIPS Code=27060 |
| Absolute Population Change, 1970-1980 | 122 |
| Per Cent Population Change, 1970-1980 | 43.11 |
| Absolute Population Change, 1980-1990 | 35 |
| Per Cent Population Change, 1980-1990 | 8.64 |
| Population Estimate, 1996 | 439 |
| Population Estimate, 2000 | 484 |
| Population Estimate, 2005 | 492 |
| Population Estimate, 2010 | 500 |
| Population Estimate, 2015 | 506 |
| Absolute Population Change, 1990-1996 | -1 |
| Per Cent Population Change, 1990-1996 | -0.23 |
| Absolute Population Change, 1996-2005 | 53 |
| Per Cent Population Change, 1996-2005 | 12.07 |
| Absolute Population Change, 2005-2015 | 14 |
| Per Cent Population Change, 2005-2015 | 2.85 |