| Hartford Town - Population Change | FIPS Code=27040 |
| Absolute Population Change, 1970-1980 | 1486 |
| Per Cent Population Change, 1970-1980 | 22.94 |
| Absolute Population Change, 1980-1990 | 1441 |
| Per Cent Population Change, 1980-1990 | 18.10 |
| Population Estimate, 1996 | 9509 |
| Population Estimate, 2000 | 10310 |
| Population Estimate, 2005 | 10622 |
| Population Estimate, 2010 | 10935 |
| Population Estimate, 2015 | 11210 |
| Absolute Population Change, 1990-1996 | 105 |
| Per Cent Population Change, 1990-1996 | 1.12 |
| Absolute Population Change, 1996-2005 | 1113 |
| Per Cent Population Change, 1996-2005 | 11.70 |
| Absolute Population Change, 2005-2015 | 588 |
| Per Cent Population Change, 2005-2015 | 5.54 |