| | Oakland Park, FL | Marion, OH | United States |
| Population | 44,092 | 36,053 | 329,725,481 |
| Female Population | 46.9% | 44.2% | 50.5% |
| Male Population | 53.1% | 55.8% | 49.5% |
| Median Age | 39.7 | 36.9 | 38.4 |
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| Population - 2010 | 41,403 | 36,795 | 309,327,143 |
| Population - 2000 | 30,966 | 35,318 | 285,036,114 |
| Population - 1990 | 26,326 | 34,075 | 251,960,433 |
| Pop. 2000 to Now | 45.6% | 0.6% | 15.6% |
| Pop. 1990 to Now | 71.2% | 4.2% | 30.8% |
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| Population Density | 5,858.6 | 3,059.0 | 93.4 |
| Land Area | 7.5 | 11.8 | 3,531,905.4 |
| Water Area | 0.7 | 0.1 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Oakland Park, FL | Marion, OH | United States |
| Age 0 to 4 | 6.2% | 6.0% | 5.9% |
| Age 5 to 9 | 4.6% | 5.3% | 6.1% |
| Age 10 to 14 | 5.3% | 6.1% | 6.6% |
| Age 15 to 17 | 3.5% | 3.0% | 3.9% |
| Age 18 to 20 | 3.5% | 3.6% | 4.0% |
| Age 21 to 24 | 4.3% | 5.7% | 5.2% |
| Age 25 to 34 | 14.9% | 18.1% | 13.8% |
| Age 35 to 44 | 15.7% | 12.5% | 12.9% |
| Age 45 to 54 | 15.0% | 12.5% | 12.6% |
| Age 55 to 59 | 7.5% | 6.6% | 6.7% |
| Age 60 to 64 | 7.2% | 6.9% | 6.3% |
| Age 65 to 74 | 7.8% | 8.5% | 9.6% |
| Age 75 to 84 | 3.2% | 3.6% | 4.5% |
| Age 85 and over | 1.2% | 1.7% | 1.9% |
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| Race | | | |
| | Oakland Park, FL | Marion, OH | United States |
| White | 35.1% | 81.2% | 59.4% |
| Black | 29.8% | 8.6% | 12.2% |
| Asian | 1.7% | 0.2% | 5.6% |
| Native American | 0.2% | 0.2% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.1% | 0.2% |
| Other | 0.4% | 0.4% | 0.4% |
| Two or More Races | 2.3% | 5.3% | 3.2% |
| Hispanic | 30.4% | 4.1% | 18.4% |
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| Marriage & Family | | | |
| | Oakland Park, FL | Marion, OH | United States |
| Married Population | 38.4% | 38.9% | 49.8% |
| Currently Married | 35.9% | 35.4% | 48.0% |
| Married but Separated | 2.6% | 3.4% | 1.8% |
| Single Population | 61.6% | 61.1% | 50.2% |
| Never Married | 43.3% | 36.8% | 33.8% |
| Divorced | 14.3% | 17.9% | 10.8% |
| Widowed | 4.0% | 6.5% | 5.6% |
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| Household Size | 2.51 | 2.49 | 2.60 |
| Households | 17,462 | 12,268 | 124,010,992 |
| Family Households | 9,248 | 7,213 | 80,755,759 |
| Married couple, w/children | 21.0% | 23.2% | 30.5% |
| Married couple, no children | 36.8% | 41.3% | 42.9% |
| Non Family Households | 8,214 | 5,055 | 43,255,233 |
| Single householder, w/children | 22.9% | 23.5% | 15.8% |
| Single householder, no children | 19.2% | 12.0% | 10.8% |