| | Sellersburg, IN | Brandenburg, KY | United States |
| Population | 9,686 | 2,857 | 329,725,481 |
| Female Population | 53.8% | 52.0% | 50.5% |
| Male Population | 46.2% | 48.0% | 49.5% |
| Median Age | 41.1 | 39.6 | 38.4 |
| space3 | | | |
| Population - 2010 | 8,349 | 2,705 | 309,327,143 |
| Population - 2000 | 6,071 | 2,049 | 285,036,114 |
| Population - 1990 | 5,745 | 1,857 | 251,960,433 |
| Pop. 2000 to Now | 49.0% | 40.5% | 15.6% |
| Pop. 1990 to Now | 57.5% | 55.0% | 30.8% |
| space4 | | | |
| Population Density | 1,319.4 | 687.1 | 93.4 |
| Land Area | 7.3 | 4.2 | 3,531,905.4 |
| Water Area | 0.1 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Sellersburg, IN | Brandenburg, KY | United States |
| Age 0 to 4 | 6.6% | 5.8% | 5.9% |
| Age 5 to 9 | 6.8% | 6.5% | 6.1% |
| Age 10 to 14 | 5.9% | 5.2% | 6.6% |
| Age 15 to 17 | 4.1% | 2.7% | 3.9% |
| Age 18 to 20 | 4.2% | 2.5% | 4.0% |
| Age 21 to 24 | 2.6% | 9.0% | 5.2% |
| Age 25 to 34 | 11.3% | 11.9% | 13.8% |
| Age 35 to 44 | 14.9% | 17.9% | 12.9% |
| Age 45 to 54 | 10.5% | 7.9% | 12.6% |
| Age 55 to 59 | 9.2% | 6.4% | 6.7% |
| Age 60 to 64 | 5.9% | 6.5% | 6.3% |
| Age 65 to 74 | 11.1% | 6.8% | 9.6% |
| Age 75 to 84 | 4.9% | 8.6% | 4.5% |
| Age 85 and over | 1.8% | 2.3% | 1.9% |
| space1 | | | |
| Race | | | |
| | Sellersburg, IN | Brandenburg, KY | United States |
| White | 88.2% | 82.8% | 59.4% |
| Black | 2.3% | 3.8% | 12.2% |
| Asian | 0.7% | 4.3% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 4.7% | 4.9% | 3.2% |
| Hispanic | 4.2% | 4.1% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Sellersburg, IN | Brandenburg, KY | United States |
| Married Population | 55.2% | 48.6% | 49.8% |
| Currently Married | 52.3% | 44.6% | 48.0% |
| Married but Separated | 3.0% | 4.1% | 1.8% |
| Single Population | 44.8% | 51.4% | 50.2% |
| Never Married | 26.6% | 27.0% | 33.8% |
| Divorced | 11.6% | 16.5% | 10.8% |
| Widowed | 6.6% | 7.9% | 5.6% |
| space5 | | | |
| Household Size | 2.67 | 2.67 | 2.60 |
| Households | 3,599 | 989 | 124,010,992 |
| Family Households | 2,430 | 599 | 80,755,759 |
| Married couple, w/children | 34.0% | 28.9% | 30.5% |
| Married couple, no children | 45.4% | 42.7% | 42.9% |
| Non Family Households | 1,169 | 390 | 43,255,233 |
| Single householder, w/children | 14.6% | 21.9% | 15.8% |
| Single householder, no children | 6.0% | 6.5% | 10.8% |