| | Rossiter, PA | Pace, FL | United States |
| Population | 649 | 23,527 | 329,725,481 |
| Female Population | 48.7% | 49.5% | 50.5% |
| Male Population | 51.3% | 50.5% | 49.5% |
| Median Age | 36.1 | 38.7 | 38.4 |
| space3 | | | |
| Population - 2010 | 612 | 19,502 | 309,327,143 |
| Population - 2000 | 790 | 7,393 | 285,036,114 |
| Population - 1990 | 729 | 6,277 | 251,960,433 |
| Pop. 2000 to Now | -21.1% | 241.7% | 15.6% |
| Pop. 1990 to Now | -14.5% | 302.5% | 30.8% |
| space4 | | | |
| Population Density | 344.1 | 971.1 | 93.4 |
| Land Area | 1.9 | 24.2 | 3,531,905.4 |
| Water Area | 0.0 | 0.3 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Rossiter, PA | Pace, FL | United States |
| Age 0 to 4 | 2.8% | 6.5% | 5.9% |
| Age 5 to 9 | 3.4% | 6.4% | 6.1% |
| Age 10 to 14 | 5.4% | 6.4% | 6.6% |
| Age 15 to 17 | 3.1% | 4.6% | 3.9% |
| Age 18 to 20 | 2.2% | 2.5% | 4.0% |
| Age 21 to 24 | 24.0% | 4.7% | 5.2% |
| Age 25 to 34 | 7.9% | 15.3% | 13.8% |
| Age 35 to 44 | 14.8% | 12.2% | 12.9% |
| Age 45 to 54 | 7.6% | 10.4% | 12.6% |
| Age 55 to 59 | 5.9% | 7.1% | 6.7% |
| Age 60 to 64 | 10.5% | 6.0% | 6.3% |
| Age 65 to 74 | 6.2% | 9.0% | 9.6% |
| Age 75 to 84 | 3.4% | 7.3% | 4.5% |
| Age 85 and over | 3.1% | 1.6% | 1.9% |
| space1 | | | |
| Race | | | |
| | Rossiter, PA | Pace, FL | United States |
| White | 98.3% | 85.1% | 59.4% |
| Black | 0.0% | 3.9% | 12.2% |
| Asian | 0.0% | 2.3% | 5.6% |
| Native American | 0.0% | 0.1% | 0.6% |
| Hawaiian, Pacific Islander | 0.2% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 1.5% | 4.4% | 3.2% |
| Hispanic | 0.0% | 4.2% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Rossiter, PA | Pace, FL | United States |
| Married Population | 54.7% | 57.4% | 49.8% |
| Currently Married | 34.8% | 56.5% | 48.0% |
| Married but Separated | 19.9% | 0.9% | 1.8% |
| Single Population | 45.3% | 42.6% | 50.2% |
| Never Married | 31.5% | 23.4% | 33.8% |
| Divorced | 6.1% | 13.0% | 10.8% |
| Widowed | 7.7% | 6.2% | 5.6% |
| space5 | | | |
| Household Size | 2.95 | 2.74 | 2.60 |
| Households | 206 | 8,586 | 124,010,992 |
| Family Households | 133 | 6,758 | 80,755,759 |
| Married couple, w/children | 22.6% | 34.9% | 30.5% |
| Married couple, no children | 53.4% | 38.8% | 42.9% |
| Non Family Households | 73 | 1,828 | 43,255,233 |
| Single householder, w/children | 18.8% | 13.4% | 15.8% |
| Single householder, no children | 5.3% | 12.8% | 10.8% |