| | Steeleville, IL | Red Bud, IL | United States |
| Population | 1,807 | 3,704 | 329,725,481 |
| Female Population | 52.4% | 54.0% | 50.5% |
| Male Population | 47.6% | 46.0% | 49.5% |
| Median Age | 43.4 | 39.8 | 38.4 |
| space3 | | | |
| Population - 2010 | 2,082 | 3,701 | 309,327,143 |
| Population - 2000 | 2,077 | 3,422 | 285,036,114 |
| Population - 1990 | 2,059 | 2,918 | 251,960,433 |
| Pop. 2000 to Now | -9.0% | 0.6% | 15.6% |
| Pop. 1990 to Now | -8.2% | 18.0% | 30.8% |
| space4 | | | |
| Population Density | 1,186.5 | 1,502.0 | 93.4 |
| Land Area | 1.5 | 2.5 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Steeleville, IL | Red Bud, IL | United States |
| Age 0 to 4 | 2.3% | 7.2% | 5.9% |
| Age 5 to 9 | 3.2% | 8.7% | 6.1% |
| Age 10 to 14 | 10.1% | 7.0% | 6.6% |
| Age 15 to 17 | 6.3% | 1.5% | 3.9% |
| Age 18 to 20 | 5.4% | 3.4% | 4.0% |
| Age 21 to 24 | 3.9% | 3.4% | 5.2% |
| Age 25 to 34 | 8.7% | 12.7% | 13.8% |
| Age 35 to 44 | 12.7% | 14.4% | 12.9% |
| Age 45 to 54 | 11.2% | 8.7% | 12.6% |
| Age 55 to 59 | 6.1% | 8.3% | 6.7% |
| Age 60 to 64 | 6.8% | 5.9% | 6.3% |
| Age 65 to 74 | 11.5% | 10.1% | 9.6% |
| Age 75 to 84 | 7.3% | 4.5% | 4.5% |
| Age 85 and over | 4.8% | 4.2% | 1.9% |
| space1 | | | |
| Race | | | |
| | Steeleville, IL | Red Bud, IL | United States |
| White | 92.5% | 98.2% | 59.4% |
| Black | 2.6% | 0.0% | 12.2% |
| Asian | 0.0% | 0.0% | 5.6% |
| Native American | 0.2% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.4% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 1.3% | 0.3% | 3.2% |
| Hispanic | 3.5% | 1.1% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Steeleville, IL | Red Bud, IL | United States |
| Married Population | 46.6% | 56.1% | 49.8% |
| Currently Married | 43.5% | 54.7% | 48.0% |
| Married but Separated | 3.1% | 1.4% | 1.8% |
| Single Population | 53.4% | 43.9% | 50.2% |
| Never Married | 30.5% | 19.4% | 33.8% |
| Divorced | 16.4% | 14.9% | 10.8% |
| Widowed | 6.6% | 9.6% | 5.6% |
| space5 | | | |
| Household Size | 2.28 | 2.38 | 2.60 |
| Households | 791 | 1,524 | 124,010,992 |
| Family Households | 506 | 1,008 | 80,755,759 |
| Married couple, w/children | 20.4% | 34.1% | 30.5% |
| Married couple, no children | 42.5% | 41.5% | 42.9% |
| Non Family Households | 285 | 516 | 43,255,233 |
| Single householder, w/children | 20.8% | 11.3% | 15.8% |
| Single householder, no children | 16.4% | 13.1% | 10.8% |