| | Campbellton, FL | Miramar, FL | United States |
| Population | 172 | 134,306 | 329,725,481 |
| Female Population | 47.7% | 50.8% | 50.5% |
| Male Population | 52.3% | 49.3% | 49.5% |
| Median Age | 53.1 | 38.2 | 38.4 |
| space3 | | | |
| Population - 2010 | 227 | 122,301 | 309,327,143 |
| Population - 2000 | 212 | 72,739 | 285,036,114 |
| Population - 1990 | 202 | 40,663 | 251,960,433 |
| Pop. 2000 to Now | 2.4% | 94.1% | 15.6% |
| Pop. 1990 to Now | 7.4% | 247.1% | 30.8% |
| space4 | | | |
| Population Density | 66.3 | 4,658.6 | 93.4 |
| Land Area | 2.6 | 28.8 | 3,531,905.4 |
| Water Area | 0.1 | 2.2 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Campbellton, FL | Miramar, FL | United States |
| Age 0 to 4 | 0.0% | 6.0% | 5.9% |
| Age 5 to 9 | 2.9% | 6.4% | 6.1% |
| Age 10 to 14 | 11.0% | 7.7% | 6.6% |
| Age 15 to 17 | 2.9% | 3.2% | 3.9% |
| Age 18 to 20 | 0.0% | 3.9% | 4.0% |
| Age 21 to 24 | 7.6% | 4.1% | 5.2% |
| Age 25 to 34 | 2.9% | 14.4% | 13.8% |
| Age 35 to 44 | 11.6% | 16.0% | 12.9% |
| Age 45 to 54 | 14.5% | 14.9% | 12.6% |
| Age 55 to 59 | 3.5% | 6.2% | 6.7% |
| Age 60 to 64 | 12.8% | 5.7% | 6.3% |
| Age 65 to 74 | 14.5% | 7.2% | 9.6% |
| Age 75 to 84 | 14.5% | 3.0% | 4.5% |
| Age 85 and over | 1.2% | 1.2% | 1.9% |
| space1 | | | |
| Race | | | |
| | Campbellton, FL | Miramar, FL | United States |
| White | 24.4% | 11.8% | 59.4% |
| Black | 73.8% | 44.5% | 12.2% |
| Asian | 0.0% | 5.6% | 5.6% |
| Native American | 0.0% | 0.1% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.4% | 0.4% |
| Two or More Races | 0.0% | 2.6% | 3.2% |
| Hispanic | 1.7% | 35.0% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Campbellton, FL | Miramar, FL | United States |
| Married Population | 49.3% | 47.6% | 49.8% |
| Currently Married | 45.9% | 45.0% | 48.0% |
| Married but Separated | 3.4% | 2.6% | 1.8% |
| Single Population | 50.7% | 52.4% | 50.2% |
| Never Married | 33.8% | 38.9% | 33.8% |
| Divorced | 13.5% | 10.1% | 10.8% |
| Widowed | 3.4% | 3.3% | 5.6% |
| space5 | | | |
| Household Size | 2.32 | 3.18 | 2.60 |
| Households | 74 | 42,171 | 124,010,992 |
| Family Households | 50 | 32,366 | 80,755,759 |
| Married couple, w/children | 8.0% | 28.4% | 30.5% |
| Married couple, no children | 62.0% | 37.4% | 42.9% |
| Non Family Households | 24 | 9,805 | 43,255,233 |
| Single householder, w/children | 20.0% | 20.0% | 15.8% |
| Single householder, no children | 10.0% | 14.3% | 10.8% |