| | Carthage, NY | Sherwood, OR | United States |
| Population | 3,398 | 20,281 | 329,725,481 |
| Female Population | 52.8% | 49.9% | 50.5% |
| Male Population | 47.2% | 50.1% | 49.5% |
| Median Age | 31 | 36.3 | 38.4 |
| space3 | | | |
| Population - 2010 | 3,666 | 18,437 | 309,327,143 |
| Population - 2000 | 3,721 | 11,791 | 285,036,114 |
| Population - 1990 | 4,344 | 3,093 | 251,960,433 |
| Pop. 2000 to Now | -12.5% | 67.5% | 15.6% |
| Pop. 1990 to Now | -25.1% | 538.4% | 30.8% |
| space4 | | | |
| Population Density | 1,403.0 | 4,703.4 | 93.4 |
| Land Area | 2.4 | 4.3 | 3,531,905.4 |
| Water Area | 0.2 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Carthage, NY | Sherwood, OR | United States |
| Age 0 to 4 | 11.4% | 5.3% | 5.9% |
| Age 5 to 9 | 5.5% | 8.4% | 6.1% |
| Age 10 to 14 | 5.6% | 9.3% | 6.6% |
| Age 15 to 17 | 4.9% | 6.4% | 3.9% |
| Age 18 to 20 | 2.6% | 4.3% | 4.0% |
| Age 21 to 24 | 7.0% | 3.5% | 5.2% |
| Age 25 to 34 | 19.6% | 10.2% | 13.8% |
| Age 35 to 44 | 11.2% | 15.5% | 12.9% |
| Age 45 to 54 | 6.9% | 16.7% | 12.6% |
| Age 55 to 59 | 5.4% | 4.2% | 6.7% |
| Age 60 to 64 | 3.0% | 6.2% | 6.3% |
| Age 65 to 74 | 11.8% | 5.6% | 9.6% |
| Age 75 to 84 | 3.7% | 2.8% | 4.5% |
| Age 85 and over | 1.4% | 1.7% | 1.9% |
| space1 | | | |
| Race | | | |
| | Carthage, NY | Sherwood, OR | United States |
| White | 82.3% | 81.9% | 59.4% |
| Black | 2.5% | 0.1% | 12.2% |
| Asian | 0.1% | 3.5% | 5.6% |
| Native American | 0.0% | 0.3% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.2% | 0.2% |
| Other | 0.4% | 0.2% | 0.4% |
| Two or More Races | 9.5% | 7.6% | 3.2% |
| Hispanic | 5.1% | 6.3% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Carthage, NY | Sherwood, OR | United States |
| Married Population | 57.6% | 59.6% | 49.8% |
| Currently Married | 52.5% | 58.6% | 48.0% |
| Married but Separated | 5.1% | 1.0% | 1.8% |
| Single Population | 42.4% | 40.4% | 50.2% |
| Never Married | 26.4% | 27.6% | 33.8% |
| Divorced | 10.6% | 9.9% | 10.8% |
| Widowed | 5.4% | 3.0% | 5.6% |
| space5 | | | |
| Household Size | 2.41 | 2.97 | 2.60 |
| Households | 1,355 | 6,814 | 124,010,992 |
| Family Households | 886 | 5,265 | 80,755,759 |
| Married couple, w/children | 28.2% | 45.2% | 30.5% |
| Married couple, no children | 40.4% | 39.2% | 42.9% |
| Non Family Households | 469 | 1,549 | 43,255,233 |
| Single householder, w/children | 26.6% | 11.5% | 15.8% |
| Single householder, no children | 4.7% | 4.1% | 10.8% |