| Fairfield - Population Change | FIPS Code=11030 |
| Absolute Population Change, 1970-1980 | 208 |
| Per Cent Population Change, 1970-1980 | 16.19 |
| Absolute Population Change, 1980-1990 | 187 |
| Per Cent Population Change, 1980-1990 | 12.53 |
| Population Estimate, 1996 | 1804 |
| Population Estimate, 2000 | 1843 |
| Population Estimate, 2005 | 1895 |
| Population Estimate, 2010 | 1934 |
| Population Estimate, 2015 | 1967 |
| Absolute Population Change, 1990-1996 | 124 |
| Per Cent Population Change, 1990-1996 | 7.38 |
| Absolute Population Change, 1996-2005 | 91 |
| Per Cent Population Change, 1996-2005 | 5.04 |
| Absolute Population Change, 2005-2015 | 72 |
| Per Cent Population Change, 2005-2015 | 3.80 |