| Lyndon - Population Change | FIPS Code=05035 |
| Absolute Population Change, 1970-1980 | 1219 |
| Per Cent Population Change, 1970-1980 | 32.90 |
| Absolute Population Change, 1980-1990 | 447 |
| Per Cent Population Change, 1980-1990 | 9.08 |
| Population Estimate, 1996 | 5544 |
| Population Estimate, 2000 | 5910 |
| Population Estimate, 2005 | 6084 |
| Population Estimate, 2010 | 6236 |
| Population Estimate, 2015 | 6378 |
| Absolute Population Change, 1990-1996 | 173 |
| Per Cent Population Change, 1990-1996 | 3.22 |
| Absolute Population Change, 1996-2005 | 540 |
| Per Cent Population Change, 1996-2005 | 9.74 |
| Absolute Population Change, 2005-2015 | 294 |
| Per Cent Population Change, 2005-2015 | 4.83 |