| | Hamilton, IN | Jamestown, IN | United States |
| Population | 1,728 | 959 | 329,725,481 |
| Female Population | 56.8% | 56.7% | 50.5% |
| Male Population | 43.2% | 43.3% | 49.5% |
| Median Age | 50 | 38.3 | 38.4 |
| space3 | | | |
| Population - 2010 | 1,561 | 960 | 309,327,143 |
| Population - 2000 | 1,419 | 886 | 285,036,114 |
| Population - 1990 | 1,160 | 764 | 251,960,433 |
| Pop. 2000 to Now | 12.4% | 4.7% | 15.6% |
| Pop. 1990 to Now | 37.5% | 21.5% | 30.8% |
| space4 | | | |
| Population Density | 824.0 | 1,094.8 | 93.4 |
| Land Area | 2.1 | 0.9 | 3,531,905.4 |
| Water Area | 1.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Hamilton, IN | Jamestown, IN | United States |
| Age 0 to 4 | 4.1% | 6.7% | 5.9% |
| Age 5 to 9 | 7.9% | 3.8% | 6.1% |
| Age 10 to 14 | 4.1% | 6.2% | 6.6% |
| Age 15 to 17 | 3.0% | 4.6% | 3.9% |
| Age 18 to 20 | 1.8% | 3.5% | 4.0% |
| Age 21 to 24 | 2.3% | 10.4% | 5.2% |
| Age 25 to 34 | 9.0% | 12.1% | 13.8% |
| Age 35 to 44 | 9.1% | 8.0% | 12.9% |
| Age 45 to 54 | 13.9% | 15.5% | 12.6% |
| Age 55 to 59 | 12.2% | 6.8% | 6.7% |
| Age 60 to 64 | 7.2% | 4.8% | 6.3% |
| Age 65 to 74 | 15.8% | 12.9% | 9.6% |
| Age 75 to 84 | 7.9% | 3.4% | 4.5% |
| Age 85 and over | 1.6% | 1.3% | 1.9% |
| space1 | | | |
| Race | | | |
| | Hamilton, IN | Jamestown, IN | United States |
| White | 95.5% | 94.6% | 59.4% |
| Black | 0.1% | 3.2% | 12.2% |
| Asian | 0.6% | 0.2% | 5.6% |
| Native American | 0.3% | 0.5% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.3% | 0.0% | 0.4% |
| Two or More Races | 1.7% | 1.5% | 3.2% |
| Hispanic | 1.4% | 0.0% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Hamilton, IN | Jamestown, IN | United States |
| Married Population | 52.0% | 47.1% | 49.8% |
| Currently Married | 51.7% | 45.5% | 48.0% |
| Married but Separated | 0.3% | 1.6% | 1.8% |
| Single Population | 48.0% | 52.9% | 50.2% |
| Never Married | 22.3% | 31.1% | 33.8% |
| Divorced | 19.4% | 16.5% | 10.8% |
| Widowed | 6.2% | 5.3% | 5.6% |
| space5 | | | |
| Household Size | 2.23 | 2.36 | 2.60 |
| Households | 775 | 406 | 124,010,992 |
| Family Households | 440 | 255 | 80,755,759 |
| Married couple, w/children | 28.6% | 20.0% | 30.5% |
| Married couple, no children | 57.3% | 48.6% | 42.9% |
| Non Family Households | 335 | 151 | 43,255,233 |
| Single householder, w/children | 6.6% | 18.0% | 15.8% |
| Single householder, no children | 7.5% | 13.3% | 10.8% |