| | Big Lake, AK | Willow, AK | United States |
| Population | 2,888 | 1,965 | 329,725,481 |
| Female Population | 45.7% | 47.2% | 50.5% |
| Male Population | 54.3% | 52.8% | 49.5% |
| Median Age | 40.3 | 45.1 | 38.4 |
| space3 | | | |
| Population - 2010 | 3,250 | 1,861 | 309,327,143 |
| Population - 2000 | 2,635 | 1,658 | 285,036,114 |
| Population - 1990 | 1,477 | 285 | 251,960,433 |
| Pop. 2000 to Now | 29.7% | 39.4% | 15.6% |
| Pop. 1990 to Now | 131.4% | 710.9% | 30.8% |
| space4 | | | |
| Population Density | 25.0 | 2.9 | 93.4 |
| Land Area | 115.4 | 690.4 | 3,531,905.4 |
| Water Area | 12.3 | 8.1 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Big Lake, AK | Willow, AK | United States |
| Age 0 to 4 | 6.5% | 8.8% | 5.9% |
| Age 5 to 9 | 7.9% | 6.0% | 6.1% |
| Age 10 to 14 | 3.6% | 7.5% | 6.6% |
| Age 15 to 17 | 2.7% | 3.9% | 3.9% |
| Age 18 to 20 | 4.0% | 3.3% | 4.0% |
| Age 21 to 24 | 2.5% | 2.6% | 5.2% |
| Age 25 to 34 | 15.5% | 8.5% | 13.8% |
| Age 35 to 44 | 11.1% | 9.2% | 12.9% |
| Age 45 to 54 | 11.3% | 12.1% | 12.6% |
| Age 55 to 59 | 11.2% | 9.2% | 6.7% |
| Age 60 to 64 | 7.7% | 10.3% | 6.3% |
| Age 65 to 74 | 11.8% | 9.2% | 9.6% |
| Age 75 to 84 | 3.3% | 7.7% | 4.5% |
| Age 85 and over | 1.0% | 1.7% | 1.9% |
| space1 | | | |
| Race | | | |
| | Big Lake, AK | Willow, AK | United States |
| White | 78.8% | 87.8% | 59.4% |
| Black | 0.2% | 0.2% | 12.2% |
| Asian | 0.9% | 0.5% | 5.6% |
| Native American | 9.4% | 6.3% | 0.6% |
| Hawaiian, Pacific Islander | 0.5% | 0.0% | 0.2% |
| Other | 0.4% | 0.0% | 0.4% |
| Two or More Races | 5.3% | 4.4% | 3.2% |
| Hispanic | 4.5% | 0.9% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Big Lake, AK | Willow, AK | United States |
| Married Population | 58.3% | 56.4% | 49.8% |
| Currently Married | 57.5% | 53.5% | 48.0% |
| Married but Separated | 0.8% | 2.9% | 1.8% |
| Single Population | 41.7% | 43.6% | 50.2% |
| Never Married | 25.0% | 23.9% | 33.8% |
| Divorced | 13.3% | 11.8% | 10.8% |
| Widowed | 3.3% | 7.9% | 5.6% |
| space5 | | | |
| Household Size | 2.36 | 2.43 | 2.60 |
| Households | 1,224 | 807 | 124,010,992 |
| Family Households | 825 | 483 | 80,755,759 |
| Married couple, w/children | 23.9% | 29.2% | 30.5% |
| Married couple, no children | 54.1% | 52.4% | 42.9% |
| Non Family Households | 399 | 324 | 43,255,233 |
| Single householder, w/children | 17.2% | 14.7% | 15.8% |
| Single householder, no children | 4.8% | 3.7% | 10.8% |