| Windham Town - Population Change | FIPS Code=25110 |
| Absolute Population Change, 1970-1980 | 49 |
| Per Cent Population Change, 1970-1980 | 28.16 |
| Absolute Population Change, 1980-1990 | 28 |
| Per Cent Population Change, 1980-1990 | 12.56 |
| Population Estimate, 1996 | 248 |
| Population Estimate, 2000 | 281 |
| Population Estimate, 2005 | 290 |
| Population Estimate, 2010 | 299 |
| Population Estimate, 2015 | 306 |
| Absolute Population Change, 1990-1996 | -3 |
| Per Cent Population Change, 1990-1996 | -1.20 |
| Absolute Population Change, 1996-2005 | 42 |
| Per Cent Population Change, 1996-2005 | 16.94 |
| Absolute Population Change, 2005-2015 | 16 |
| Per Cent Population Change, 2005-2015 | 5.52 |