| | Medley, FL | Opa-locka, FL | United States |
| Population | 957 | 16,310 | 329,725,481 |
| Female Population | 51.3% | 50.0% | 50.5% |
| Male Population | 48.7% | 50.0% | 49.5% |
| Median Age | 58 | 34.7 | 38.4 |
| space3 | | | |
| Population - 2010 | 841 | 15,239 | 309,327,143 |
| Population - 2000 | 1,098 | 14,951 | 285,036,114 |
| Population - 1990 | 663 | 15,283 | 251,960,433 |
| Pop. 2000 to Now | -19.8% | 4.8% | 15.6% |
| Pop. 1990 to Now | 32.9% | 2.5% | 30.8% |
| space4 | | | |
| Population Density | 198.5 | 3,786.0 | 93.4 |
| Land Area | 4.8 | 4.3 | 3,531,905.4 |
| Water Area | 1.2 | 0.2 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Medley, FL | Opa-locka, FL | United States |
| Age 0 to 4 | 3.3% | 7.6% | 5.9% |
| Age 5 to 9 | 1.8% | 5.9% | 6.1% |
| Age 10 to 14 | 3.3% | 7.6% | 6.6% |
| Age 15 to 17 | 2.2% | 4.2% | 3.9% |
| Age 18 to 20 | 2.2% | 4.3% | 4.0% |
| Age 21 to 24 | 4.2% | 4.7% | 5.2% |
| Age 25 to 34 | 7.5% | 16.5% | 13.8% |
| Age 35 to 44 | 8.2% | 9.3% | 12.9% |
| Age 45 to 54 | 13.2% | 16.2% | 12.6% |
| Age 55 to 59 | 10.1% | 5.1% | 6.7% |
| Age 60 to 64 | 8.7% | 4.7% | 6.3% |
| Age 65 to 74 | 14.9% | 9.0% | 9.6% |
| Age 75 to 84 | 13.2% | 3.7% | 4.5% |
| Age 85 and over | 7.2% | 1.1% | 1.9% |
| space1 | | | |
| Race | | | |
| | Medley, FL | Opa-locka, FL | United States |
| White | 3.3% | 3.3% | 59.4% |
| Black | 0.0% | 53.4% | 12.2% |
| Asian | 0.0% | 0.0% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.8% | 0.4% |
| Two or More Races | 0.0% | 0.1% | 3.2% |
| Hispanic | 96.7% | 42.4% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Medley, FL | Opa-locka, FL | United States |
| Married Population | 45.7% | 32.1% | 49.8% |
| Currently Married | 42.7% | 26.0% | 48.0% |
| Married but Separated | 3.0% | 6.0% | 1.8% |
| Single Population | 54.3% | 67.9% | 50.2% |
| Never Married | 25.0% | 50.1% | 33.8% |
| Divorced | 20.4% | 12.6% | 10.8% |
| Widowed | 8.9% | 5.2% | 5.6% |
| space5 | | | |
| Household Size | 2.36 | 2.67 | 2.60 |
| Households | 406 | 6,092 | 124,010,992 |
| Family Households | 231 | 3,843 | 80,755,759 |
| Married couple, w/children | 17.7% | 17.3% | 30.5% |
| Married couple, no children | 55.8% | 19.5% | 42.9% |
| Non Family Households | 175 | 2,249 | 43,255,233 |
| Single householder, w/children | 7.8% | 36.8% | 15.8% |
| Single householder, no children | 18.6% | 26.5% | 10.8% |