| | Averill Park, NY | Petersburgh, NY | United States |
| Population | 1,618 | 1,317 | 329,725,481 |
| Female Population | 37.2% | 50.3% | 50.5% |
| Male Population | 62.9% | 49.7% | 49.5% |
| Median Age | 54.8 | 47.4 | 38.4 |
| space3 | | | |
| Population - 2010 | 1,660 | 1,519 | 309,327,143 |
| Population - 2000 | 1,517 | 1,563 | 285,036,114 |
| Population - 1990 | 1,656 | 1,461 | 251,960,433 |
| Pop. 2000 to Now | -10.6% | -5.9% | 15.6% |
| Pop. 1990 to Now | -18.1% | 0.7% | 30.8% |
| space4 | | | |
| Population Density | 551.7 | 31.7 | 93.4 |
| Land Area | 2.9 | 41.6 | 3,531,905.4 |
| Water Area | 0.1 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Averill Park, NY | Petersburgh, NY | United States |
| Age 0 to 4 | 4.8% | 3.3% | 5.9% |
| Age 5 to 9 | 1.4% | 4.4% | 6.1% |
| Age 10 to 14 | 1.4% | 5.2% | 6.6% |
| Age 15 to 17 | 4.9% | 5.7% | 3.9% |
| Age 18 to 20 | 5.8% | 1.6% | 4.0% |
| Age 21 to 24 | 0.8% | 8.3% | 5.2% |
| Age 25 to 34 | 9.5% | 7.5% | 13.8% |
| Age 35 to 44 | 3.6% | 10.1% | 12.9% |
| Age 45 to 54 | 18.6% | 15.6% | 12.6% |
| Age 55 to 59 | 13.5% | 8.7% | 6.7% |
| Age 60 to 64 | 12.9% | 10.0% | 6.3% |
| Age 65 to 74 | 18.9% | 11.8% | 9.6% |
| Age 75 to 84 | 2.1% | 6.1% | 4.5% |
| Age 85 and over | 1.9% | 1.7% | 1.9% |
| space1 | | | |
| Race | | | |
| | Averill Park, NY | Petersburgh, NY | United States |
| White | 100.0% | 93.9% | 59.4% |
| Black | 0.0% | 0.8% | 12.2% |
| Asian | 0.0% | 0.0% | 5.6% |
| Native American | 0.0% | 0.1% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 0.0% | 3.1% | 3.2% |
| Hispanic | 0.0% | 2.2% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Averill Park, NY | Petersburgh, NY | United States |
| Married Population | 55.4% | 57.9% | 49.8% |
| Currently Married | 53.7% | 57.2% | 48.0% |
| Married but Separated | 1.7% | 0.7% | 1.8% |
| Single Population | 44.6% | 42.1% | 50.2% |
| Never Married | 17.2% | 22.4% | 33.8% |
| Divorced | 17.1% | 10.1% | 10.8% |
| Widowed | 10.2% | 9.5% | 5.6% |
| space5 | | | |
| Household Size | 1.98 | 2.37 | 2.60 |
| Households | 816 | 555 | 124,010,992 |
| Family Households | 496 | 378 | 80,755,759 |
| Married couple, w/children | 13.7% | 21.7% | 30.5% |
| Married couple, no children | 69.0% | 62.4% | 42.9% |
| Non Family Households | 320 | 177 | 43,255,233 |
| Single householder, w/children | 4.2% | 7.9% | 15.8% |
| Single householder, no children | 13.1% | 7.9% | 10.8% |