| | Gardner, FL | Branford, FL | United States |
| Population | 331 | 910 | 329,725,481 |
| Female Population | 59.8% | 49.2% | 50.5% |
| Male Population | 40.2% | 50.8% | 49.5% |
| Median Age | 72.6 | 30.2 | 38.4 |
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| Population - 2010 | 412 | 705 | 309,327,143 |
| Population - 2000 | 337 | 695 | 285,036,114 |
| Population - 1990 | 255 | 670 | 251,960,433 |
| Pop. 2000 to Now | -33.2% | 5.8% | 15.6% |
| Pop. 1990 to Now | -11.8% | 9.7% | 30.8% |
| space4 | | | |
| Population Density | 42.9 | 819.8 | 93.4 |
| Land Area | 7.7 | 1.1 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Gardner, FL | Branford, FL | United States |
| Age 0 to 4 | 0.0% | 3.8% | 5.9% |
| Age 5 to 9 | 1.2% | 7.0% | 6.1% |
| Age 10 to 14 | 1.5% | 8.9% | 6.6% |
| Age 15 to 17 | 9.4% | 5.8% | 3.9% |
| Age 18 to 20 | 0.0% | 3.5% | 4.0% |
| Age 21 to 24 | 0.0% | 0.0% | 5.2% |
| Age 25 to 34 | 1.5% | 28.7% | 13.8% |
| Age 35 to 44 | 6.6% | 12.6% | 12.9% |
| Age 45 to 54 | 1.8% | 10.9% | 12.6% |
| Age 55 to 59 | 1.5% | 4.6% | 6.7% |
| Age 60 to 64 | 11.5% | 5.3% | 6.3% |
| Age 65 to 74 | 25.7% | 3.7% | 9.6% |
| Age 75 to 84 | 28.7% | 2.7% | 4.5% |
| Age 85 and over | 10.6% | 2.3% | 1.9% |
| space1 | | | |
| Race | | | |
| | Gardner, FL | Branford, FL | United States |
| White | 91.5% | 72.5% | 59.4% |
| Black | 0.0% | 19.6% | 12.2% |
| Asian | 0.0% | 1.1% | 5.6% |
| Native American | 0.0% | 1.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 2.6% | 0.4% |
| Two or More Races | 0.0% | 1.4% | 3.2% |
| Hispanic | 8.5% | 1.8% | 18.4% |
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| Marriage & Family | | | |
| | Gardner, FL | Branford, FL | United States |
| Married Population | 68.3% | 34.0% | 49.8% |
| Currently Married | 68.3% | 32.1% | 48.0% |
| Married but Separated | 0.0% | 1.9% | 1.8% |
| Single Population | 31.7% | 66.0% | 50.2% |
| Never Married | 22.4% | 48.1% | 33.8% |
| Divorced | 6.5% | 13.8% | 10.8% |
| Widowed | 2.8% | 4.1% | 5.6% |
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| Household Size | 2.19 | 2.99 | 2.60 |
| Households | 151 | 304 | 124,010,992 |
| Family Households | 137 | 221 | 80,755,759 |
| Married couple, w/children | 3.7% | 16.7% | 30.5% |
| Married couple, no children | 75.2% | 33.0% | 42.9% |
| Non Family Households | 14 | 83 | 43,255,233 |
| Single householder, w/children | 15.3% | 33.5% | 15.8% |
| Single householder, no children | 5.8% | 16.7% | 10.8% |