| Wallingford - Population Change | FIPS Code=21125 |
| Absolute Population Change, 1970-1980 | 217 |
| Per Cent Population Change, 1970-1980 | 12.95 |
| Absolute Population Change, 1980-1990 | 291 |
| Per Cent Population Change, 1980-1990 | 15.37 |
| Population Estimate, 1996 | 2196 |
| Population Estimate, 2000 | 2382 |
| Population Estimate, 2005 | 2454 |
| Population Estimate, 2010 | 2531 |
| Population Estimate, 2015 | 2579 |
| Absolute Population Change, 1990-1996 | #REF! |
| Per Cent Population Change, 1990-1996 | 0.55 |
| Absolute Population Change, 1996-2005 | 258 |
| Per Cent Population Change, 1996-2005 | 11.75 |
| Absolute Population Change, 2005-2015 | 125 |
| Per Cent Population Change, 2005-2015 | 5.09 |