| | Dillingham, AK | Seward, AK | United States |
| Population | 2,133 | 2,614 | 329,725,481 |
| Female Population | 50.0% | 37.4% | 50.5% |
| Male Population | 50.0% | 62.6% | 49.5% |
| Median Age | 32.5 | 43.5 | 38.4 |
| space3 | | | |
| Population - 2010 | 2,329 | 2,727 | 309,327,143 |
| Population - 2000 | 2,466 | 2,830 | 285,036,114 |
| Population - 1990 | 2,017 | 2,699 | 251,960,433 |
| Pop. 2000 to Now | -5.8% | 3.4% | 15.6% |
| Pop. 1990 to Now | 15.2% | 8.5% | 30.8% |
| space4 | | | |
| Population Density | 64.0 | 187.3 | 93.4 |
| Land Area | 33.3 | 14.0 | 3,531,905.4 |
| Water Area | 2.7 | 7.9 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Dillingham, AK | Seward, AK | United States |
| Age 0 to 4 | 8.4% | 4.4% | 5.9% |
| Age 5 to 9 | 9.0% | 4.6% | 6.1% |
| Age 10 to 14 | 8.3% | 7.9% | 6.6% |
| Age 15 to 17 | 4.0% | 2.4% | 3.9% |
| Age 18 to 20 | 3.2% | 1.3% | 4.0% |
| Age 21 to 24 | 3.9% | 4.2% | 5.2% |
| Age 25 to 34 | 17.3% | 15.3% | 13.8% |
| Age 35 to 44 | 15.0% | 14.6% | 12.9% |
| Age 45 to 54 | 9.0% | 14.7% | 12.6% |
| Age 55 to 59 | 6.6% | 4.8% | 6.7% |
| Age 60 to 64 | 5.6% | 10.2% | 6.3% |
| Age 65 to 74 | 6.4% | 10.3% | 9.6% |
| Age 75 to 84 | 2.4% | 2.0% | 4.5% |
| Age 85 and over | 1.0% | 3.3% | 1.9% |
| space1 | | | |
| Race | | | |
| | Dillingham, AK | Seward, AK | United States |
| White | 22.4% | 62.5% | 59.4% |
| Black | 1.1% | 2.7% | 12.2% |
| Asian | 0.3% | 1.3% | 5.6% |
| Native American | 58.2% | 14.9% | 0.6% |
| Hawaiian, Pacific Islander | 0.1% | 4.6% | 0.2% |
| Other | 0.1% | 0.0% | 0.4% |
| Two or More Races | 11.4% | 4.6% | 3.2% |
| Hispanic | 6.3% | 9.3% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Dillingham, AK | Seward, AK | United States |
| Married Population | 43.2% | 41.3% | 49.8% |
| Currently Married | 40.1% | 39.3% | 48.0% |
| Married but Separated | 3.1% | 2.0% | 1.8% |
| Single Population | 56.8% | 58.7% | 50.2% |
| Never Married | 43.0% | 41.2% | 33.8% |
| Divorced | 8.4% | 9.3% | 10.8% |
| Widowed | 5.4% | 8.1% | 5.6% |
| space5 | | | |
| Household Size | 2.79 | 2.19 | 2.60 |
| Households | 707 | 977 | 124,010,992 |
| Family Households | 513 | 545 | 80,755,759 |
| Married couple, w/children | 24.4% | 22.6% | 30.5% |
| Married couple, no children | 29.8% | 49.7% | 42.9% |
| Non Family Households | 194 | 432 | 43,255,233 |
| Single householder, w/children | 36.6% | 22.8% | 15.8% |
| Single householder, no children | 9.2% | 5.0% | 10.8% |