| | Adairville, KY | Rockton, IL | United States |
| Population | 803 | 8,051 | 329,725,481 |
| Female Population | 57.2% | 51.3% | 50.5% |
| Male Population | 42.8% | 48.8% | 49.5% |
| Median Age | 43.4 | 41.2 | 38.4 |
| space3 | | | |
| Population - 2010 | 903 | 7,777 | 309,327,143 |
| Population - 2000 | 920 | 5,296 | 285,036,114 |
| Population - 1990 | 906 | 2,928 | 251,960,433 |
| Pop. 2000 to Now | -2.8% | 41.2% | 15.6% |
| Pop. 1990 to Now | -1.3% | 155.4% | 30.8% |
| space4 | | | |
| Population Density | 683.4 | 1,466.2 | 93.4 |
| Land Area | 1.2 | 5.5 | 3,531,905.4 |
| Water Area | 0.0 | 0.2 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Adairville, KY | Rockton, IL | United States |
| Age 0 to 4 | 3.9% | 4.0% | 5.9% |
| Age 5 to 9 | 5.4% | 5.2% | 6.1% |
| Age 10 to 14 | 10.5% | 8.4% | 6.6% |
| Age 15 to 17 | 3.6% | 4.2% | 3.9% |
| Age 18 to 20 | 4.4% | 4.6% | 4.0% |
| Age 21 to 24 | 5.4% | 4.6% | 5.2% |
| Age 25 to 34 | 10.8% | 7.9% | 13.8% |
| Age 35 to 44 | 8.8% | 16.8% | 12.9% |
| Age 45 to 54 | 7.0% | 16.1% | 12.6% |
| Age 55 to 59 | 12.3% | 6.3% | 6.7% |
| Age 60 to 64 | 4.1% | 6.6% | 6.3% |
| Age 65 to 74 | 10.5% | 7.9% | 9.6% |
| Age 75 to 84 | 7.7% | 6.5% | 4.5% |
| Age 85 and over | 5.7% | 0.8% | 1.9% |
| space1 | | | |
| Race | | | |
| | Adairville, KY | Rockton, IL | United States |
| White | 76.2% | 88.7% | 59.4% |
| Black | 12.3% | 0.5% | 12.2% |
| Asian | 1.2% | 1.6% | 5.6% |
| Native American | 0.0% | 0.1% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.5% | 0.4% |
| Two or More Races | 3.7% | 0.8% | 3.2% |
| Hispanic | 6.5% | 7.9% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Adairville, KY | Rockton, IL | United States |
| Married Population | 49.3% | 61.3% | 49.8% |
| Currently Married | 48.4% | 60.6% | 48.0% |
| Married but Separated | 0.9% | 0.6% | 1.8% |
| Single Population | 50.7% | 38.7% | 50.2% |
| Never Married | 27.1% | 24.6% | 33.8% |
| Divorced | 16.7% | 10.3% | 10.8% |
| Widowed | 6.8% | 3.9% | 5.6% |
| space5 | | | |
| Household Size | 2.38 | 2.67 | 2.60 |
| Households | 337 | 3,007 | 124,010,992 |
| Family Households | 213 | 2,327 | 80,755,759 |
| Married couple, w/children | 17.4% | 40.5% | 30.5% |
| Married couple, no children | 54.5% | 44.5% | 42.9% |
| Non Family Households | 124 | 680 | 43,255,233 |
| Single householder, w/children | 9.9% | 9.0% | 15.8% |
| Single householder, no children | 18.3% | 6.0% | 10.8% |