| | Lebanon, IL | Centreville, IL | United States |
| Population | 4,737 | 4,346 | 329,725,481 |
| Female Population | 55.0% | 52.3% | 50.5% |
| Male Population | 45.0% | 47.7% | 49.5% |
| Median Age | 32.8 | 43.6 | 38.4 |
| space3 | | | |
| Population - 2010 | 4,462 | 5,323 | 309,327,143 |
| Population - 2000 | 3,523 | 5,951 | 285,036,114 |
| Population - 1990 | 3,688 | 7,489 | 251,960,433 |
| Pop. 2000 to Now | 19.9% | -18.6% | 15.6% |
| Pop. 1990 to Now | 14.6% | -35.3% | 30.8% |
| space4 | | | |
| Population Density | 1,831.1 | 1,038.5 | 93.4 |
| Land Area | 2.6 | 4.2 | 3,531,905.4 |
| Water Area | 0.0 | 0.1 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Lebanon, IL | Centreville, IL | United States |
| Age 0 to 4 | 1.1% | 10.2% | 5.9% |
| Age 5 to 9 | 4.8% | 8.9% | 6.1% |
| Age 10 to 14 | 7.1% | 4.2% | 6.6% |
| Age 15 to 17 | 3.8% | 1.0% | 3.9% |
| Age 18 to 20 | 7.1% | 4.4% | 4.0% |
| Age 21 to 24 | 15.3% | 4.4% | 5.2% |
| Age 25 to 34 | 12.0% | 9.5% | 13.8% |
| Age 35 to 44 | 9.8% | 9.4% | 12.9% |
| Age 45 to 54 | 13.2% | 9.9% | 12.6% |
| Age 55 to 59 | 3.6% | 6.3% | 6.7% |
| Age 60 to 64 | 5.5% | 8.6% | 6.3% |
| Age 65 to 74 | 10.9% | 12.3% | 9.6% |
| Age 75 to 84 | 4.0% | 8.5% | 4.5% |
| Age 85 and over | 1.8% | 2.3% | 1.9% |
| space1 | | | |
| Race | | | |
| | Lebanon, IL | Centreville, IL | United States |
| White | 78.0% | 3.5% | 59.4% |
| Black | 19.1% | 93.0% | 12.2% |
| Asian | 0.4% | 1.1% | 5.6% |
| Native American | 0.1% | 0.5% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 1.6% | 1.9% | 3.2% |
| Hispanic | 0.7% | 0.0% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Lebanon, IL | Centreville, IL | United States |
| Married Population | 44.3% | 14.5% | 49.8% |
| Currently Married | 43.3% | 11.2% | 48.0% |
| Married but Separated | 1.0% | 3.4% | 1.8% |
| Single Population | 55.7% | 85.5% | 50.2% |
| Never Married | 41.1% | 41.0% | 33.8% |
| Divorced | 8.5% | 32.9% | 10.8% |
| Widowed | 6.1% | 11.6% | 5.6% |
| space5 | | | |
| Household Size | 2.58 | 2.25 | 2.60 |
| Households | 1,660 | 1,931 | 124,010,992 |
| Family Households | 1,026 | 804 | 80,755,759 |
| Married couple, w/children | 22.9% | 0.0% | 30.5% |
| Married couple, no children | 60.9% | 18.7% | 42.9% |
| Non Family Households | 634 | 1,127 | 43,255,233 |
| Single householder, w/children | 14.5% | 45.5% | 15.8% |
| Single householder, no children | 1.7% | 35.8% | 10.8% |