| | Bradley, IL | Elizabeth City, NC | United States |
| Population | 15,236 | 18,466 | 329,725,481 |
| Female Population | 52.2% | 54.1% | 50.5% |
| Male Population | 47.8% | 45.9% | 49.5% |
| Median Age | 36 | 32.8 | 38.4 |
| space3 | | | |
| Population - 2010 | 15,898 | 18,695 | 309,327,143 |
| Population - 2000 | 12,784 | 17,188 | 285,036,114 |
| Population - 1990 | 10,792 | 14,292 | 251,960,433 |
| Pop. 2000 to Now | 18.4% | 4.8% | 15.6% |
| Pop. 1990 to Now | 40.2% | 26.0% | 30.8% |
| space4 | | | |
| Population Density | 2,205.6 | 1,584.7 | 93.4 |
| Land Area | 6.9 | 11.7 | 3,531,905.4 |
| Water Area | 0.0 | 0.6 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Bradley, IL | Elizabeth City, NC | United States |
| Age 0 to 4 | 7.0% | 7.4% | 5.9% |
| Age 5 to 9 | 6.0% | 4.8% | 6.1% |
| Age 10 to 14 | 5.7% | 7.5% | 6.6% |
| Age 15 to 17 | 3.6% | 3.4% | 3.9% |
| Age 18 to 20 | 4.9% | 8.3% | 4.0% |
| Age 21 to 24 | 8.0% | 6.3% | 5.2% |
| Age 25 to 34 | 13.1% | 15.6% | 13.8% |
| Age 35 to 44 | 13.0% | 12.3% | 12.9% |
| Age 45 to 54 | 13.0% | 8.7% | 12.6% |
| Age 55 to 59 | 4.7% | 5.2% | 6.7% |
| Age 60 to 64 | 6.2% | 5.6% | 6.3% |
| Age 65 to 74 | 7.9% | 8.0% | 9.6% |
| Age 75 to 84 | 5.0% | 4.7% | 4.5% |
| Age 85 and over | 1.8% | 2.2% | 1.9% |
| space1 | | | |
| Race | | | |
| | Bradley, IL | Elizabeth City, NC | United States |
| White | 79.9% | 36.0% | 59.4% |
| Black | 7.1% | 50.9% | 12.2% |
| Asian | 0.8% | 1.7% | 5.6% |
| Native American | 0.0% | 0.2% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.1% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 1.4% | 3.1% | 3.2% |
| Hispanic | 10.8% | 8.0% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Bradley, IL | Elizabeth City, NC | United States |
| Married Population | 46.1% | 40.9% | 49.8% |
| Currently Married | 45.3% | 38.6% | 48.0% |
| Married but Separated | 0.8% | 2.4% | 1.8% |
| Single Population | 53.9% | 59.1% | 50.2% |
| Never Married | 35.5% | 39.5% | 33.8% |
| Divorced | 12.3% | 12.9% | 10.8% |
| Widowed | 6.0% | 6.7% | 5.6% |
| space5 | | | |
| Household Size | 2.61 | 2.48 | 2.60 |
| Households | 5,775 | 6,731 | 124,010,992 |
| Family Households | 3,656 | 4,090 | 80,755,759 |
| Married couple, w/children | 34.8% | 21.9% | 30.5% |
| Married couple, no children | 37.4% | 40.1% | 42.9% |
| Non Family Households | 2,119 | 2,641 | 43,255,233 |
| Single householder, w/children | 17.9% | 21.1% | 15.8% |
| Single householder, no children | 9.9% | 16.9% | 10.8% |