| | Bluffton, IN | Rosman, NC | United States |
| Population | 10,548 | 700 | 329,725,481 |
| Female Population | 52.3% | 54.4% | 50.5% |
| Male Population | 47.7% | 45.6% | 49.5% |
| Median Age | 37.8 | 38 | 38.4 |
| space3 | | | |
| Population - 2010 | 9,911 | 578 | 309,327,143 |
| Population - 2000 | 9,536 | 490 | 285,036,114 |
| Population - 1990 | 9,020 | 385 | 251,960,433 |
| Pop. 2000 to Now | 5.9% | 27.4% | 15.6% |
| Pop. 1990 to Now | 11.9% | 62.1% | 30.8% |
| space4 | | | |
| Population Density | 1,282.6 | 1,282.1 | 93.4 |
| Land Area | 8.2 | 0.5 | 3,531,905.4 |
| Water Area | 0.1 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Bluffton, IN | Rosman, NC | United States |
| Age 0 to 4 | 6.3% | 4.7% | 5.9% |
| Age 5 to 9 | 7.5% | 6.6% | 6.1% |
| Age 10 to 14 | 7.3% | 2.9% | 6.6% |
| Age 15 to 17 | 4.3% | 7.0% | 3.9% |
| Age 18 to 20 | 4.2% | 1.1% | 4.0% |
| Age 21 to 24 | 5.9% | 2.0% | 5.2% |
| Age 25 to 34 | 11.1% | 14.9% | 13.8% |
| Age 35 to 44 | 12.6% | 16.3% | 12.9% |
| Age 45 to 54 | 11.3% | 10.3% | 12.6% |
| Age 55 to 59 | 7.3% | 3.9% | 6.7% |
| Age 60 to 64 | 5.6% | 1.6% | 6.3% |
| Age 65 to 74 | 9.5% | 21.4% | 9.6% |
| Age 75 to 84 | 4.2% | 6.3% | 4.5% |
| Age 85 and over | 2.9% | 1.1% | 1.9% |
| space1 | | | |
| Race | | | |
| | Bluffton, IN | Rosman, NC | United States |
| White | 90.4% | 84.9% | 59.4% |
| Black | 2.2% | 0.0% | 12.2% |
| Asian | 0.2% | 0.0% | 5.6% |
| Native American | 0.0% | 0.9% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 2.2% | 0.1% | 3.2% |
| Hispanic | 5.0% | 14.1% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Bluffton, IN | Rosman, NC | United States |
| Married Population | 52.0% | 32.9% | 49.8% |
| Currently Married | 50.2% | 24.6% | 48.0% |
| Married but Separated | 1.8% | 8.3% | 1.8% |
| Single Population | 48.0% | 67.1% | 50.2% |
| Never Married | 27.9% | 23.5% | 33.8% |
| Divorced | 14.0% | 36.9% | 10.8% |
| Widowed | 6.1% | 6.7% | 5.6% |
| space5 | | | |
| Household Size | 2.38 | 1.86 | 2.60 |
| Households | 4,322 | 376 | 124,010,992 |
| Family Households | 2,564 | 160 | 80,755,759 |
| Married couple, w/children | 34.6% | 11.3% | 30.5% |
| Married couple, no children | 43.6% | 15.6% | 42.9% |
| Non Family Households | 1,758 | 216 | 43,255,233 |
| Single householder, w/children | 15.4% | 51.9% | 15.8% |
| Single householder, no children | 6.4% | 21.3% | 10.8% |