| | Bohemia, NY | Louisa, KY | United States |
| Population | 9,504 | 2,637 | 329,725,481 |
| Female Population | 48.9% | 51.0% | 50.5% |
| Male Population | 51.1% | 49.0% | 49.5% |
| Median Age | 41.7 | 42.5 | 38.4 |
| space3 | | | |
| Population - 2010 | 9,898 | 2,447 | 309,327,143 |
| Population - 2000 | 9,871 | 2,018 | 285,036,114 |
| Population - 1990 | 9,556 | 1,990 | 251,960,433 |
| Pop. 2000 to Now | -7.1% | 15.2% | 15.6% |
| Pop. 1990 to Now | -4.0% | 16.8% | 30.8% |
| space4 | | | |
| Population Density | 1,103.8 | 1,176.2 | 93.4 |
| Land Area | 8.6 | 2.2 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Bohemia, NY | Louisa, KY | United States |
| Age 0 to 4 | 6.9% | 10.8% | 5.9% |
| Age 5 to 9 | 4.7% | 5.4% | 6.1% |
| Age 10 to 14 | 5.9% | 6.2% | 6.6% |
| Age 15 to 17 | 4.6% | 6.0% | 3.9% |
| Age 18 to 20 | 3.0% | 1.3% | 4.0% |
| Age 21 to 24 | 4.8% | 3.0% | 5.2% |
| Age 25 to 34 | 10.2% | 12.1% | 13.8% |
| Age 35 to 44 | 13.5% | 6.8% | 12.9% |
| Age 45 to 54 | 13.3% | 14.8% | 12.6% |
| Age 55 to 59 | 6.0% | 7.8% | 6.7% |
| Age 60 to 64 | 10.7% | 9.6% | 6.3% |
| Age 65 to 74 | 8.9% | 8.4% | 9.6% |
| Age 75 to 84 | 5.5% | 4.1% | 4.5% |
| Age 85 and over | 1.9% | 3.6% | 1.9% |
| space1 | | | |
| Race | | | |
| | Bohemia, NY | Louisa, KY | United States |
| White | 83.6% | 95.2% | 59.4% |
| Black | 2.0% | 0.8% | 12.2% |
| Asian | 3.9% | 0.0% | 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 | 0.7% | 0.4% | 3.2% |
| Hispanic | 9.9% | 3.6% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Bohemia, NY | Louisa, KY | United States |
| Married Population | 54.4% | 46.5% | 49.8% |
| Currently Married | 53.7% | 41.0% | 48.0% |
| Married but Separated | 0.7% | 5.4% | 1.8% |
| Single Population | 45.6% | 53.5% | 50.2% |
| Never Married | 29.7% | 23.3% | 33.8% |
| Divorced | 10.1% | 17.3% | 10.8% |
| Widowed | 5.9% | 13.0% | 5.6% |
| space5 | | | |
| Household Size | 2.80 | 3.07 | 2.60 |
| Households | 3,386 | 830 | 124,010,992 |
| Family Households | 2,350 | 600 | 80,755,759 |
| Married couple, w/children | 33.3% | 24.7% | 30.5% |
| Married couple, no children | 44.7% | 34.0% | 42.9% |
| Non Family Households | 1,036 | 230 | 43,255,233 |
| Single householder, w/children | 11.1% | 18.8% | 15.8% |
| Single householder, no children | 10.9% | 22.5% | 10.8% |