| | Strong, ME | Willimantic, ME | United States |
| Population | 972 | 141 | 329,725,481 |
| Female Population | 51.9% | 44.7% | 50.5% |
| Male Population | 48.2% | 55.3% | 49.5% |
| Median Age | 51.1 | 45.1 | 38.4 |
| space3 | | | |
| Population - 2010 | 1,210 | 150 | 309,327,143 |
| Population - 2000 | 1,259 | 135 | 285,036,114 |
| Population - 1990 | 1,217 | 169 | 251,960,433 |
| Pop. 2000 to Now | -8.5% | 5.9% | 15.6% |
| Pop. 1990 to Now | -5.3% | -15.4% | 30.8% |
| space4 | | | |
| Population Density | 34.3 | 3.3 | 93.4 |
| Land Area | 28.3 | 43.2 | 3,531,905.4 |
| Water Area | 0.6 | 4.7 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Strong, ME | Willimantic, ME | United States |
| Age 0 to 4 | 3.5% | 0.0% | 5.9% |
| Age 5 to 9 | 6.2% | 10.6% | 6.1% |
| Age 10 to 14 | 4.8% | 13.5% | 6.6% |
| Age 15 to 17 | 4.1% | 7.8% | 3.9% |
| Age 18 to 20 | 2.2% | 4.3% | 4.0% |
| Age 21 to 24 | 1.0% | 0.0% | 5.2% |
| Age 25 to 34 | 8.6% | 5.7% | 13.8% |
| Age 35 to 44 | 14.0% | 7.8% | 12.9% |
| Age 45 to 54 | 10.2% | 7.1% | 12.6% |
| Age 55 to 59 | 10.9% | 5.7% | 6.7% |
| Age 60 to 64 | 12.7% | 6.4% | 6.3% |
| Age 65 to 74 | 17.3% | 6.4% | 9.6% |
| Age 75 to 84 | 3.6% | 17.7% | 4.5% |
| Age 85 and over | 0.9% | 7.1% | 1.9% |
| space1 | | | |
| Race | | | |
| | Strong, ME | Willimantic, ME | United States |
| White | 91.6% | 100.0% | 59.4% |
| Black | 0.0% | 0.0% | 12.2% |
| Asian | 0.0% | 0.0% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 1.0% | 0.0% | 3.2% |
| Hispanic | 7.4% | 0.0% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Strong, ME | Willimantic, ME | United States |
| Married Population | 50.3% | 56.1% | 49.8% |
| Currently Married | 47.9% | 56.1% | 48.0% |
| Married but Separated | 2.4% | 0.0% | 1.8% |
| Single Population | 49.7% | 43.9% | 50.2% |
| Never Married | 23.5% | 22.4% | 33.8% |
| Divorced | 17.2% | 5.6% | 10.8% |
| Widowed | 9.0% | 15.9% | 5.6% |
| space5 | | | |
| Household Size | 2.49 | 2.61 | 2.60 |
| Households | 390 | 54 | 124,010,992 |
| Family Households | 205 | 31 | 80,755,759 |
| Married couple, w/children | 35.6% | 41.9% | 30.5% |
| Married couple, no children | 51.2% | 48.4% | 42.9% |
| Non Family Households | 185 | 23 | 43,255,233 |
| Single householder, w/children | 8.3% | 3.2% | 15.8% |
| Single householder, no children | 4.9% | 6.5% | 10.8% |