| | Crescent City, FL | Welaka, FL | United States |
| Population | 1,891 | 954 | 329,725,481 |
| Female Population | 52.1% | 64.4% | 50.5% |
| Male Population | 47.9% | 35.6% | 49.5% |
| Median Age | 40.1 | 59 | 38.4 |
| space3 | | | |
| Population - 2010 | 1,564 | 708 | 309,327,143 |
| Population - 2000 | 1,776 | 586 | 285,036,114 |
| Population - 1990 | 1,859 | 533 | 251,960,433 |
| Pop. 2000 to Now | -13.7% | 22.7% | 15.6% |
| Pop. 1990 to Now | -17.5% | 34.9% | 30.8% |
| space4 | | | |
| Population Density | 916.2 | 649.0 | 93.4 |
| Land Area | 2.1 | 1.5 | 3,531,905.4 |
| Water Area | 0.3 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Crescent City, FL | Welaka, FL | United States |
| Age 0 to 4 | 8.6% | 11.8% | 5.9% |
| Age 5 to 9 | 4.1% | 3.9% | 6.1% |
| Age 10 to 14 | 5.9% | 1.8% | 6.6% |
| Age 15 to 17 | 6.4% | 2.5% | 3.9% |
| Age 18 to 20 | 5.4% | 3.5% | 4.0% |
| Age 21 to 24 | 3.4% | 4.0% | 5.2% |
| Age 25 to 34 | 8.6% | 5.3% | 13.8% |
| Age 35 to 44 | 11.5% | 6.5% | 12.9% |
| Age 45 to 54 | 7.2% | 4.5% | 12.6% |
| Age 55 to 59 | 7.4% | 7.1% | 6.7% |
| Age 60 to 64 | 5.8% | 9.4% | 6.3% |
| Age 65 to 74 | 16.1% | 9.5% | 9.6% |
| Age 75 to 84 | 5.8% | 20.3% | 4.5% |
| Age 85 and over | 3.9% | 9.7% | 1.9% |
| space1 | | | |
| Race | | | |
| | Crescent City, FL | Welaka, FL | United States |
| White | 47.5% | 35.0% | 59.4% |
| Black | 21.3% | 45.8% | 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% | 13.7% | 0.4% |
| Two or More Races | 3.1% | 0.0% | 3.2% |
| Hispanic | 28.2% | 5.5% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Crescent City, FL | Welaka, FL | United States |
| Married Population | 37.8% | 28.2% | 49.8% |
| Currently Married | 34.6% | 26.8% | 48.0% |
| Married but Separated | 3.2% | 1.4% | 1.8% |
| Single Population | 62.2% | 71.8% | 50.2% |
| Never Married | 35.0% | 27.6% | 33.8% |
| Divorced | 15.8% | 24.5% | 10.8% |
| Widowed | 11.4% | 19.7% | 5.6% |
| space5 | | | |
| Household Size | 2.67 | 1.92 | 2.60 |
| Households | 682 | 496 | 124,010,992 |
| Family Households | 375 | 177 | 80,755,759 |
| Married couple, w/children | 23.7% | 5.1% | 30.5% |
| Married couple, no children | 38.1% | 48.6% | 42.9% |
| Non Family Households | 307 | 319 | 43,255,233 |
| Single householder, w/children | 20.3% | 32.2% | 15.8% |
| Single householder, no children | 17.9% | 14.1% | 10.8% |