| | Fairview, PA | Old Jamestown, MO | United States |
| Population | 2,926 | 20,382 | 329,725,481 |
| Female Population | 52.5% | 52.8% | 50.5% |
| Male Population | 47.5% | 47.2% | 49.5% |
| Median Age | 38.2 | 41.8 | 38.4 |
| space3 | | | |
| Population - 2010 | 2,921 | 20,509 | 309,327,143 |
| Population - 2000 | 2,208 | 18,802 | 285,036,114 |
| Population - 1990 | 1,988 | 15,598 | 251,960,433 |
| Pop. 2000 to Now | 35.7% | 4.9% | 15.6% |
| Pop. 1990 to Now | 50.7% | 26.4% | 30.8% |
| space4 | | | |
| Population Density | 831.7 | 1,365.3 | 93.4 |
| Land Area | 3.5 | 14.9 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Fairview, PA | Old Jamestown, MO | United States |
| Age 0 to 4 | 6.9% | 8.0% | 5.9% |
| Age 5 to 9 | 5.1% | 4.6% | 6.1% |
| Age 10 to 14 | 8.3% | 8.2% | 6.6% |
| Age 15 to 17 | 2.0% | 4.6% | 3.9% |
| Age 18 to 20 | 3.2% | 2.1% | 4.0% |
| Age 21 to 24 | 1.4% | 5.2% | 5.2% |
| Age 25 to 34 | 14.0% | 9.0% | 13.8% |
| Age 35 to 44 | 19.2% | 12.9% | 12.9% |
| Age 45 to 54 | 2.2% | 12.3% | 12.6% |
| Age 55 to 59 | 3.3% | 5.7% | 6.7% |
| Age 60 to 64 | 4.2% | 9.4% | 6.3% |
| Age 65 to 74 | 17.6% | 11.7% | 9.6% |
| Age 75 to 84 | 8.8% | 4.2% | 4.5% |
| Age 85 and over | 3.9% | 2.1% | 1.9% |
| space1 | | | |
| Race | | | |
| | Fairview, PA | Old Jamestown, MO | United States |
| White | 93.0% | 23.5% | 59.4% |
| Black | 1.4% | 65.8% | 12.2% |
| Asian | 0.0% | 1.4% | 5.6% |
| Native American | 0.0% | 0.1% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.5% | 0.4% |
| Two or More Races | 0.0% | 5.4% | 3.2% |
| Hispanic | 5.6% | 3.2% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Fairview, PA | Old Jamestown, MO | United States |
| Married Population | 62.1% | 55.5% | 49.8% |
| Currently Married | 62.1% | 54.0% | 48.0% |
| Married but Separated | 0.0% | 1.5% | 1.8% |
| Single Population | 37.9% | 44.5% | 50.2% |
| Never Married | 18.2% | 29.1% | 33.8% |
| Divorced | 6.7% | 9.7% | 10.8% |
| Widowed | 12.9% | 5.7% | 5.6% |
| space5 | | | |
| Household Size | 2.74 | 2.89 | 2.60 |
| Households | 959 | 7,010 | 124,010,992 |
| Family Households | 778 | 5,351 | 80,755,759 |
| Married couple, w/children | 36.2% | 27.5% | 30.5% |
| Married couple, no children | 51.0% | 49.8% | 42.9% |
| Non Family Households | 181 | 1,659 | 43,255,233 |
| Single householder, w/children | 10.5% | 12.3% | 15.8% |
| Single householder, no children | 2.2% | 10.4% | 10.8% |