| | Richburg, SC | Valrico, FL | United States |
| Population | 299 | 39,632 | 329,725,481 |
| Female Population | 55.5% | 54.8% | 50.5% |
| Male Population | 44.5% | 45.2% | 49.5% |
| Median Age | 58.2 | 43.7 | 38.4 |
| space3 | | | |
| Population - 2010 | 275 | 34,629 | 309,327,143 |
| Population - 2000 | 332 | 6,582 | 285,036,114 |
| Population - 1990 | 405 | 14,390 | 251,960,433 |
| Pop. 2000 to Now | -22.0% | 526.2% | 15.6% |
| Pop. 1990 to Now | -36.1% | 186.4% | 30.8% |
| space4 | | | |
| Population Density | 341.3 | 2,870.0 | 93.4 |
| Land Area | 0.9 | 13.8 | 3,531,905.4 |
| Water Area | 0.0 | 0.4 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Richburg, SC | Valrico, FL | United States |
| Age 0 to 4 | 0.0% | 4.0% | 5.9% |
| Age 5 to 9 | 3.3% | 4.7% | 6.1% |
| Age 10 to 14 | 1.7% | 7.5% | 6.6% |
| Age 15 to 17 | 3.7% | 5.0% | 3.9% |
| Age 18 to 20 | 3.7% | 3.9% | 4.0% |
| Age 21 to 24 | 6.0% | 4.7% | 5.2% |
| Age 25 to 34 | 10.4% | 9.0% | 13.8% |
| Age 35 to 44 | 4.0% | 12.2% | 12.9% |
| Age 45 to 54 | 9.4% | 15.3% | 12.6% |
| Age 55 to 59 | 12.0% | 8.7% | 6.7% |
| Age 60 to 64 | 8.4% | 7.1% | 6.3% |
| Age 65 to 74 | 14.4% | 11.7% | 9.6% |
| Age 75 to 84 | 21.7% | 4.3% | 4.5% |
| Age 85 and over | 1.3% | 1.6% | 1.9% |
| space1 | | | |
| Race | | | |
| | Richburg, SC | Valrico, FL | United States |
| White | 28.8% | 57.1% | 59.4% |
| Black | 66.6% | 12.7% | 12.2% |
| Asian | 1.7% | 4.0% | 5.6% |
| Native American | 0.0% | 0.4% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.4% | 0.2% |
| Other | 0.0% | 0.5% | 0.4% |
| Two or More Races | 0.7% | 3.5% | 3.2% |
| Hispanic | 2.3% | 21.5% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Richburg, SC | Valrico, FL | United States |
| Married Population | 36.6% | 56.5% | 49.8% |
| Currently Married | 35.2% | 55.6% | 48.0% |
| Married but Separated | 1.4% | 0.9% | 1.8% |
| Single Population | 63.4% | 43.5% | 50.2% |
| Never Married | 37.7% | 27.7% | 33.8% |
| Divorced | 7.0% | 10.6% | 10.8% |
| Widowed | 18.7% | 5.2% | 5.6% |
| space5 | | | |
| Household Size | 2.27 | 2.79 | 2.60 |
| Households | 132 | 14,158 | 124,010,992 |
| Family Households | 113 | 10,532 | 80,755,759 |
| Married couple, w/children | 0.0% | 33.7% | 30.5% |
| Married couple, no children | 38.9% | 49.2% | 42.9% |
| Non Family Households | 19 | 3,626 | 43,255,233 |
| Single householder, w/children | 12.4% | 8.5% | 15.8% |
| Single householder, no children | 48.7% | 8.6% | 10.8% |