| Middlesex - Population Change | FIPS Code=23050 |
| Absolute Population Change, 1970-1980 | 378 |
| Per Cent Population Change, 1970-1980 | 44.11 |
| Absolute Population Change, 1980-1990 | 279 |
| Per Cent Population Change, 1980-1990 | 22.59 |
| Population Estimate, 1996 | 1539 |
| Population Estimate, 2000 | 1843 |
| Population Estimate, 2005 | 1982 |
| Population Estimate, 2010 | 2125 |
| Population Estimate, 2015 | 2250 |
| Absolute Population Change, 1990-1996 | #REF! |
| Per Cent Population Change, 1990-1996 | 1.65 |
| Absolute Population Change, 1996-2005 | 443 |
| Per Cent Population Change, 1996-2005 | 28.78 |
| Absolute Population Change, 2005-2015 | 268 |
| Per Cent Population Change, 2005-2015 | 13.52 |