| | Berwick, ME | Natick, MA | United States |
| Population | 7,891 | 36,627 | 329,725,481 |
| Female Population | 53.2% | 51.7% | 50.5% |
| Male Population | 46.8% | 48.3% | 49.5% |
| Median Age | 40.1 | 42.3 | 38.4 |
| space3 | | | |
| Population - 2010 | 7,255 | 33,100 | 309,327,143 |
| Population - 2000 | 6,353 | 32,170 | 285,036,114 |
| Population - 1990 | 5,995 | 30,510 | 251,960,433 |
| Pop. 2000 to Now | 25.9% | 11.2% | 15.6% |
| Pop. 1990 to Now | 33.4% | 17.2% | 30.8% |
| space4 | | | |
| Population Density | 210.3 | 2,449.3 | 93.4 |
| Land Area | 37.5 | 15.0 | 3,531,905.4 |
| Water Area | 0.3 | 1.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Berwick, ME | Natick, MA | United States |
| Age 0 to 4 | 6.3% | 5.3% | 5.9% |
| Age 5 to 9 | 5.5% | 7.1% | 6.1% |
| Age 10 to 14 | 5.4% | 5.5% | 6.6% |
| Age 15 to 17 | 5.6% | 4.3% | 3.9% |
| Age 18 to 20 | 1.5% | 1.9% | 4.0% |
| Age 21 to 24 | 4.1% | 3.2% | 5.2% |
| Age 25 to 34 | 13.7% | 12.9% | 13.8% |
| Age 35 to 44 | 18.5% | 13.0% | 12.9% |
| Age 45 to 54 | 8.7% | 14.9% | 12.6% |
| Age 55 to 59 | 5.1% | 7.0% | 6.7% |
| Age 60 to 64 | 7.7% | 7.2% | 6.3% |
| Age 65 to 74 | 10.1% | 10.6% | 9.6% |
| Age 75 to 84 | 5.6% | 4.7% | 4.5% |
| Age 85 and over | 2.2% | 2.5% | 1.9% |
| space1 | | | |
| Race | | | |
| | Berwick, ME | Natick, MA | United States |
| White | 96.9% | 76.9% | 59.4% |
| Black | 0.0% | 1.9% | 12.2% |
| Asian | 0.4% | 14.0% | 5.6% |
| Native American | 0.0% | 0.2% | 0.6% |
| Hawaiian, Pacific Islander | 0.2% | 0.0% | 0.2% |
| Other | 0.0% | 0.2% | 0.4% |
| Two or More Races | 1.3% | 2.8% | 3.2% |
| Hispanic | 1.2% | 4.0% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Berwick, ME | Natick, MA | United States |
| Married Population | 54.2% | 59.7% | 49.8% |
| Currently Married | 51.0% | 58.1% | 48.0% |
| Married but Separated | 3.3% | 1.6% | 1.8% |
| Single Population | 45.8% | 40.3% | 50.2% |
| Never Married | 22.8% | 25.7% | 33.8% |
| Divorced | 15.8% | 9.4% | 10.8% |
| Widowed | 7.1% | 5.2% | 5.6% |
| space5 | | | |
| Household Size | 2.32 | 2.38 | 2.60 |
| Households | 3,398 | 15,243 | 124,010,992 |
| Family Households | 2,128 | 10,143 | 80,755,759 |
| Married couple, w/children | 33.1% | 39.6% | 30.5% |
| Married couple, no children | 43.4% | 44.3% | 42.9% |
| Non Family Households | 1,270 | 5,100 | 43,255,233 |
| Single householder, w/children | 14.9% | 8.1% | 15.8% |
| Single householder, no children | 8.6% | 8.0% | 10.8% |