| | Stonington, ME | Powell, WY | United States |
| Population | 887 | 6,385 | 329,725,481 |
| Female Population | 49.3% | 49.0% | 50.5% |
| Male Population | 50.7% | 51.0% | 49.5% |
| Median Age | 56.1 | 39.2 | 38.4 |
| space3 | | | |
| Population - 2010 | 1,041 | 6,322 | 309,327,143 |
| Population - 2000 | 1,152 | 5,373 | 285,036,114 |
| Population - 1990 | 1,252 | 5,292 | 251,960,433 |
| Pop. 2000 to Now | -10.3% | 14.0% | 15.6% |
| Pop. 1990 to Now | -17.5% | 15.8% | 30.8% |
| space4 | | | |
| Population Density | 90.4 | 1,505.5 | 93.4 |
| Land Area | 9.8 | 4.2 | 3,531,905.4 |
| Water Area | 28.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Stonington, ME | Powell, WY | United States |
| Age 0 to 4 | 5.3% | 5.3% | 5.9% |
| Age 5 to 9 | 6.8% | 5.5% | 6.1% |
| Age 10 to 14 | 0.0% | 8.8% | 6.6% |
| Age 15 to 17 | 0.0% | 3.2% | 3.9% |
| Age 18 to 20 | 0.5% | 7.2% | 4.0% |
| Age 21 to 24 | 4.6% | 2.9% | 5.2% |
| Age 25 to 34 | 11.0% | 13.8% | 13.8% |
| Age 35 to 44 | 12.0% | 11.1% | 12.9% |
| Age 45 to 54 | 6.9% | 10.7% | 12.6% |
| Age 55 to 59 | 9.5% | 4.9% | 6.7% |
| Age 60 to 64 | 15.3% | 7.9% | 6.3% |
| Age 65 to 74 | 18.6% | 11.0% | 9.6% |
| Age 75 to 84 | 5.1% | 5.7% | 4.5% |
| Age 85 and over | 4.5% | 2.1% | 1.9% |
| space1 | | | |
| Race | | | |
| | Stonington, ME | Powell, WY | United States |
| White | 96.7% | 88.2% | 59.4% |
| Black | 1.0% | 0.2% | 12.2% |
| Asian | 0.0% | 0.9% | 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 | 0.5% | 4.3% | 3.2% |
| Hispanic | 1.8% | 6.2% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Stonington, ME | Powell, WY | United States |
| Married Population | 47.1% | 52.4% | 49.8% |
| Currently Married | 44.1% | 49.3% | 48.0% |
| Married but Separated | 2.9% | 3.2% | 1.8% |
| Single Population | 52.9% | 47.6% | 50.2% |
| Never Married | 24.9% | 22.0% | 33.8% |
| Divorced | 20.9% | 18.3% | 10.8% |
| Widowed | 7.2% | 7.2% | 5.6% |
| space5 | | | |
| Household Size | 1.86 | 2.23 | 2.60 |
| Households | 477 | 2,678 | 124,010,992 |
| Family Households | 211 | 1,604 | 80,755,759 |
| Married couple, w/children | 13.7% | 29.2% | 30.5% |
| Married couple, no children | 67.3% | 46.3% | 42.9% |
| Non Family Households | 266 | 1,074 | 43,255,233 |
| Single householder, w/children | 14.2% | 14.2% | 15.8% |
| Single householder, no children | 4.7% | 10.4% | 10.8% |