| Waterbury - Population Change | FIPS Code=23090 |
| Absolute Population Change, 1970-1980 | -149 |
| Per Cent Population Change, 1970-1980 | -3.23 |
| Absolute Population Change, 1980-1990 | 124 |
| Per Cent Population Change, 1980-1990 | 2.78 |
| Population Estimate, 1996 | 4667 |
| Population Estimate, 2000 | 4339 |
| Population Estimate, 2005 | 4158 |
| Population Estimate, 2010 | 3989 |
| Population Estimate, 2015 | 3778 |
| Absolute Population Change, 1990-1996 | #REF! |
| Per Cent Population Change, 1990-1996 | 1.70 |
| Absolute Population Change, 1996-2005 | -509 |
| Per Cent Population Change, 1996-2005 | n/a |
| Absolute Population Change, 2005-2015 | -380 |
| Per Cent Population Change, 2005-2015 | -9.14 |