| | Country Club, FL | Hialeah Gardens, FL | United States |
| Population | 51,105 | 22,917 | 329,725,481 |
| Female Population | 51.6% | 51.4% | 50.5% |
| Male Population | 48.5% | 48.6% | 49.5% |
| Median Age | 39.8 | 43.1 | 38.4 |
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| Population - 2010 | 39,720 | 21,821 | 309,327,143 |
| Population - 2000 | 36,310 | 19,297 | 285,036,114 |
| Population - 1990 | 23,127 | 7,713 | 251,960,433 |
| Pop. 2000 to Now | 38.0% | 20.2% | 15.6% |
| Pop. 1990 to Now | 116.6% | 200.8% | 30.8% |
| space4 | | | |
| Population Density | 12,243.7 | 7,145.9 | 93.4 |
| Land Area | 4.2 | 3.2 | 3,531,905.4 |
| Water Area | 0.3 | 0.5 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Country Club, FL | Hialeah Gardens, FL | United States |
| Age 0 to 4 | 5.3% | 4.1% | 5.9% |
| Age 5 to 9 | 5.8% | 5.2% | 6.1% |
| Age 10 to 14 | 6.9% | 5.1% | 6.6% |
| Age 15 to 17 | 3.5% | 3.9% | 3.9% |
| Age 18 to 20 | 3.7% | 3.7% | 4.0% |
| Age 21 to 24 | 5.6% | 3.4% | 5.2% |
| Age 25 to 34 | 12.2% | 13.2% | 13.8% |
| Age 35 to 44 | 18.2% | 13.6% | 12.9% |
| Age 45 to 54 | 14.9% | 15.8% | 12.6% |
| Age 55 to 59 | 7.8% | 9.1% | 6.7% |
| Age 60 to 64 | 4.5% | 6.5% | 6.3% |
| Age 65 to 74 | 7.5% | 8.3% | 9.6% |
| Age 75 to 84 | 3.0% | 5.6% | 4.5% |
| Age 85 and over | 1.1% | 2.7% | 1.9% |
| space1 | | | |
| Race | | | |
| | Country Club, FL | Hialeah Gardens, FL | United States |
| White | 5.4% | 4.0% | 59.4% |
| Black | 6.9% | 0.1% | 12.2% |
| Asian | 0.4% | 0.0% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.5% | 0.2% | 0.4% |
| Two or More Races | 1.2% | 0.2% | 3.2% |
| Hispanic | 85.5% | 95.6% | 18.4% |
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| Marriage & Family | | | |
| | Country Club, FL | Hialeah Gardens, FL | United States |
| Married Population | 45.4% | 48.5% | 49.8% |
| Currently Married | 41.5% | 45.2% | 48.0% |
| Married but Separated | 3.9% | 3.3% | 1.8% |
| Single Population | 54.6% | 51.5% | 50.2% |
| Never Married | 34.1% | 34.5% | 33.8% |
| Divorced | 15.4% | 12.0% | 10.8% |
| Widowed | 5.1% | 4.9% | 5.6% |
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| Household Size | 2.80 | 3.10 | 2.60 |
| Households | 18,191 | 7,330 | 124,010,992 |
| Family Households | 13,445 | 5,838 | 80,755,759 |
| Married couple, w/children | 27.7% | 26.1% | 30.5% |
| Married couple, no children | 27.7% | 36.9% | 42.9% |
| Non Family Households | 4,746 | 1,492 | 43,255,233 |
| Single householder, w/children | 23.0% | 18.6% | 15.8% |
| Single householder, no children | 21.6% | 18.4% | 10.8% |