| | Sandy Lake, PA | Chili, NY | United States |
| Population | 697 | 29,097 | 329,725,481 |
| Female Population | 50.2% | 51.3% | 50.5% |
| Male Population | 49.8% | 48.7% | 49.5% |
| Median Age | 32.2 | 43.3 | 38.4 |
| space3 | | | |
| Population - 2010 | 656 | 28,698 | 309,327,143 |
| Population - 2000 | 743 | 27,638 | 285,036,114 |
| Population - 1990 | 722 | 25,178 | 251,960,433 |
| Pop. 2000 to Now | -16.4% | 3.6% | 15.6% |
| Pop. 1990 to Now | -14.0% | 13.8% | 30.8% |
| space4 | | | |
| Population Density | 837.7 | 736.7 | 93.4 |
| Land Area | 0.8 | 39.5 | 3,531,905.4 |
| Water Area | 0.0 | 0.4 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Sandy Lake, PA | Chili, NY | United States |
| Age 0 to 4 | 8.3% | 6.3% | 5.9% |
| Age 5 to 9 | 4.0% | 4.9% | 6.1% |
| Age 10 to 14 | 2.9% | 5.0% | 6.6% |
| Age 15 to 17 | 7.5% | 4.9% | 3.9% |
| Age 18 to 20 | 4.7% | 3.2% | 4.0% |
| Age 21 to 24 | 6.5% | 3.7% | 5.2% |
| Age 25 to 34 | 20.9% | 12.7% | 13.8% |
| Age 35 to 44 | 12.8% | 10.8% | 12.9% |
| Age 45 to 54 | 11.9% | 12.7% | 12.6% |
| Age 55 to 59 | 4.0% | 9.2% | 6.7% |
| Age 60 to 64 | 4.3% | 7.8% | 6.3% |
| Age 65 to 74 | 9.3% | 11.0% | 9.6% |
| Age 75 to 84 | 1.0% | 5.4% | 4.5% |
| Age 85 and over | 1.9% | 2.3% | 1.9% |
| space1 | | | |
| Race | | | |
| | Sandy Lake, PA | Chili, NY | United States |
| White | 96.7% | 81.0% | 59.4% |
| Black | 0.0% | 9.7% | 12.2% |
| Asian | 0.0% | 2.3% | 5.6% |
| Native American | 0.0% | 0.1% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.1% | 0.2% |
| Other | 0.9% | 0.2% | 0.4% |
| Two or More Races | 2.4% | 2.6% | 3.2% |
| Hispanic | 0.0% | 4.0% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Sandy Lake, PA | Chili, NY | United States |
| Married Population | 44.2% | 55.3% | 49.8% |
| Currently Married | 44.0% | 54.3% | 48.0% |
| Married but Separated | 0.2% | 1.0% | 1.8% |
| Single Population | 55.8% | 44.7% | 50.2% |
| Never Married | 40.6% | 29.9% | 33.8% |
| Divorced | 11.5% | 10.5% | 10.8% |
| Widowed | 3.7% | 4.3% | 5.6% |
| space5 | | | |
| Household Size | 2.37 | 2.46 | 2.60 |
| Households | 294 | 11,623 | 124,010,992 |
| Family Households | 176 | 8,363 | 80,755,759 |
| Married couple, w/children | 33.5% | 25.7% | 30.5% |
| Married couple, no children | 34.7% | 49.5% | 42.9% |
| Non Family Households | 118 | 3,260 | 43,255,233 |
| Single householder, w/children | 27.8% | 16.9% | 15.8% |
| Single householder, no children | 4.0% | 7.8% | 10.8% |