| | Groton, MA | Wooster, OH | United States |
| Population | 11,254 | 26,753 | 329,725,481 |
| Female Population | 47.5% | 54.0% | 50.5% |
| Male Population | 52.5% | 46.1% | 49.5% |
| Median Age | 41.4 | 38.5 | 38.4 |
| space3 | | | |
| Population - 2010 | 10,681 | 26,134 | 309,327,143 |
| Population - 2000 | 9,547 | 24,811 | 285,036,114 |
| Population - 1990 | 7,511 | 22,191 | 251,960,433 |
| Pop. 2000 to Now | 17.9% | 5.4% | 15.6% |
| Pop. 1990 to Now | 49.9% | 17.9% | 30.8% |
| space4 | | | |
| Population Density | 343.6 | 1,592.3 | 93.4 |
| Land Area | 32.8 | 16.8 | 3,531,905.4 |
| Water Area | 1.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Groton, MA | Wooster, OH | United States |
| Age 0 to 4 | 4.5% | 5.1% | 5.9% |
| Age 5 to 9 | 5.8% | 3.7% | 6.1% |
| Age 10 to 14 | 11.2% | 4.3% | 6.6% |
| Age 15 to 17 | 5.0% | 4.3% | 3.9% |
| Age 18 to 20 | 3.0% | 12.2% | 4.0% |
| Age 21 to 24 | 4.0% | 5.9% | 5.2% |
| Age 25 to 34 | 7.7% | 10.6% | 13.8% |
| Age 35 to 44 | 12.1% | 11.2% | 12.9% |
| Age 45 to 54 | 14.8% | 11.9% | 12.6% |
| Age 55 to 59 | 8.0% | 5.7% | 6.7% |
| Age 60 to 64 | 8.3% | 6.6% | 6.3% |
| Age 65 to 74 | 9.6% | 11.0% | 9.6% |
| Age 75 to 84 | 4.5% | 5.0% | 4.5% |
| Age 85 and over | 1.4% | 2.7% | 1.9% |
| space1 | | | |
| Race | | | |
| | Groton, MA | Wooster, OH | United States |
| White | 87.0% | 87.9% | 59.4% |
| Black | 0.5% | 3.0% | 12.2% |
| Asian | 4.2% | 2.9% | 5.6% |
| Native American | 0.0% | 0.1% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.3% | 0.4% | 0.4% |
| Two or More Races | 4.3% | 3.3% | 3.2% |
| Hispanic | 3.7% | 2.5% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Groton, MA | Wooster, OH | United States |
| Married Population | 59.8% | 42.9% | 49.8% |
| Currently Married | 58.5% | 40.8% | 48.0% |
| Married but Separated | 1.4% | 2.1% | 1.8% |
| Single Population | 40.2% | 57.1% | 50.2% |
| Never Married | 25.9% | 38.7% | 33.8% |
| Divorced | 10.2% | 12.9% | 10.8% |
| Widowed | 4.0% | 5.5% | 5.6% |
| space5 | | | |
| Household Size | 2.90 | 2.12 | 2.60 |
| Households | 3,829 | 10,950 | 124,010,992 |
| Family Households | 2,817 | 6,000 | 80,755,759 |
| Married couple, w/children | 46.0% | 27.9% | 30.5% |
| Married couple, no children | 42.4% | 48.4% | 42.9% |
| Non Family Households | 1,012 | 4,950 | 43,255,233 |
| Single householder, w/children | 8.9% | 15.2% | 15.8% |
| Single householder, no children | 2.7% | 8.5% | 10.8% |