| | South Bay, FL | Belle Glade, FL | United States |
| Population | 6,284 | 16,983 | 329,725,481 |
| Female Population | 22.3% | 49.6% | 50.5% |
| Male Population | 77.8% | 50.4% | 49.5% |
| Median Age | 42 | 33.8 | 38.4 |
| space3 | | | |
| Population - 2010 | 4,875 | 18,212 | 309,327,143 |
| Population - 2000 | 3,859 | 14,906 | 285,036,114 |
| Population - 1990 | 3,558 | 16,177 | 251,960,433 |
| Pop. 2000 to Now | 34.5% | 34.7% | 15.6% |
| Pop. 1990 to Now | 45.8% | 24.2% | 30.8% |
| space4 | | | |
| Population Density | 2,383.0 | 2,417.5 | 93.4 |
| Land Area | 2.6 | 7.0 | 3,531,905.4 |
| Water Area | 1.0 | 0.1 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | South Bay, FL | Belle Glade, FL | United States |
| Age 0 to 4 | 2.1% | 9.8% | 5.9% |
| Age 5 to 9 | 3.9% | 8.5% | 6.1% |
| Age 10 to 14 | 3.8% | 6.3% | 6.6% |
| Age 15 to 17 | 2.1% | 3.2% | 3.9% |
| Age 18 to 20 | 1.8% | 3.5% | 4.0% |
| Age 21 to 24 | 4.1% | 5.1% | 5.2% |
| Age 25 to 34 | 16.9% | 15.4% | 13.8% |
| Age 35 to 44 | 23.4% | 8.1% | 12.9% |
| Age 45 to 54 | 17.0% | 13.9% | 12.6% |
| Age 55 to 59 | 8.7% | 5.5% | 6.7% |
| Age 60 to 64 | 6.3% | 5.6% | 6.3% |
| Age 65 to 74 | 6.9% | 9.6% | 9.6% |
| Age 75 to 84 | 3.0% | 3.8% | 4.5% |
| Age 85 and over | 0.1% | 1.7% | 1.9% |
| space1 | | | |
| Race | | | |
| | South Bay, FL | Belle Glade, FL | United States |
| White | 15.8% | 10.2% | 59.4% |
| Black | 57.8% | 59.3% | 12.2% |
| Asian | 1.0% | 2.0% | 5.6% |
| Native American | 0.6% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.3% | 0.0% | 0.4% |
| Two or More Races | 1.8% | 0.6% | 3.2% |
| Hispanic | 22.6% | 27.9% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | South Bay, FL | Belle Glade, FL | United States |
| Married Population | 28.1% | 36.3% | 49.8% |
| Currently Married | 24.9% | 33.6% | 48.0% |
| Married but Separated | 3.2% | 2.6% | 1.8% |
| Single Population | 71.9% | 63.7% | 50.2% |
| Never Married | 53.4% | 47.1% | 33.8% |
| Divorced | 15.8% | 10.2% | 10.8% |
| Widowed | 2.8% | 6.4% | 5.6% |
| space5 | | | |
| Household Size | 3.25 | 2.99 | 2.60 |
| Households | 853 | 5,626 | 124,010,992 |
| Family Households | 658 | 3,641 | 80,755,759 |
| Married couple, w/children | 27.1% | 19.6% | 30.5% |
| Married couple, no children | 26.7% | 28.3% | 42.9% |
| Non Family Households | 195 | 1,985 | 43,255,233 |
| Single householder, w/children | 30.9% | 37.6% | 15.8% |
| Single householder, no children | 15.4% | 14.5% | 10.8% |