| | Springfield, SC | Rehoboth, MA | United States |
| Population | 546 | 12,434 | 329,725,481 |
| Female Population | 50.9% | 49.1% | 50.5% |
| Male Population | 49.1% | 50.9% | 49.5% |
| Median Age | 37.3 | 46.4 | 38.4 |
| space3 | | | |
| Population - 2010 | 527 | 11,627 | 309,327,143 |
| Population - 2000 | 504 | 10,172 | 285,036,114 |
| Population - 1990 | 523 | 8,656 | 251,960,433 |
| Pop. 2000 to Now | -5.4% | 22.9% | 15.6% |
| Pop. 1990 to Now | -8.8% | 44.4% | 30.8% |
| space4 | | | |
| Population Density | 314.7 | 264.9 | 93.4 |
| Land Area | 1.7 | 46.9 | 3,531,905.4 |
| Water Area | 0.0 | 0.5 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Springfield, SC | Rehoboth, MA | United States |
| Age 0 to 4 | 11.4% | 4.3% | 5.9% |
| Age 5 to 9 | 8.1% | 5.9% | 6.1% |
| Age 10 to 14 | 2.7% | 6.0% | 6.6% |
| Age 15 to 17 | 5.7% | 3.9% | 3.9% |
| Age 18 to 20 | 2.2% | 2.3% | 4.0% |
| Age 21 to 24 | 9.5% | 5.9% | 5.2% |
| Age 25 to 34 | 8.2% | 9.6% | 13.8% |
| Age 35 to 44 | 9.3% | 10.4% | 12.9% |
| Age 45 to 54 | 17.9% | 16.8% | 12.6% |
| Age 55 to 59 | 3.3% | 9.2% | 6.7% |
| Age 60 to 64 | 3.5% | 8.1% | 6.3% |
| Age 65 to 74 | 8.1% | 10.4% | 9.6% |
| Age 75 to 84 | 9.0% | 5.6% | 4.5% |
| Age 85 and over | 1.1% | 1.6% | 1.9% |
| space1 | | | |
| Race | | | |
| | Springfield, SC | Rehoboth, MA | United States |
| White | 52.0% | 94.7% | 59.4% |
| Black | 45.1% | 0.1% | 12.2% |
| Asian | 0.0% | 0.7% | 5.6% |
| Native American | 2.9% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 0.0% | 1.1% | 3.2% |
| Hispanic | 0.0% | 3.5% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Springfield, SC | Rehoboth, MA | United States |
| Married Population | 48.9% | 61.0% | 49.8% |
| Currently Married | 41.6% | 59.8% | 48.0% |
| Married but Separated | 7.3% | 1.2% | 1.8% |
| Single Population | 51.1% | 39.0% | 50.2% |
| Never Married | 29.6% | 25.4% | 33.8% |
| Divorced | 10.6% | 8.4% | 10.8% |
| Widowed | 10.8% | 5.2% | 5.6% |
| space5 | | | |
| Household Size | 2.80 | 2.84 | 2.60 |
| Households | 195 | 4,377 | 124,010,992 |
| Family Households | 126 | 3,366 | 80,755,759 |
| Married couple, w/children | 19.8% | 37.3% | 30.5% |
| Married couple, no children | 50.0% | 48.2% | 42.9% |
| Non Family Households | 69 | 1,011 | 43,255,233 |
| Single householder, w/children | 30.2% | 4.5% | 15.8% |
| Single householder, no children | 0.0% | 10.0% | 10.8% |