| 2,335 | (23%) | |
| 2,309 | (23%) | |
| 1,046 | (10%) | |
| 880 | (9%) | |
| 730 | (7%) | |
| 698 | (7%) | |
| 633 | (6%) | |
| 592 | (6%) | |
| 408 | (4%) | |
| 248 | (2%) | |
| 164 | (2%) | |
| 62 | (1%) |
Source: U.S. Census Bureau - A.C.S 2007
| 21,169 | (100%) | |
| 18,953 | (90%) | |
| 1,217 | (6%) | |
| 702 | (3%) | |
| 337 | (2%) | |
| 154 | (1%) |
Gardner Massachusetts's population is estimated to be approximately 21,169. There are 18,953 White residents which make up 89.50 % of the states' population. The remaining population is made up of 1,217 Blacks, 702 Others, 337 Asians, and 154 Native Americans.