| | McGrath, AK | Ketchikan, AK | United States |
| Population | 226 | 8,150 | 329,725,481 |
| Female Population | 62.0% | 49.2% | 50.5% |
| Male Population | 38.1% | 50.8% | 49.5% |
| Median Age | 42.5 | 37.7 | 38.4 |
| space3 | | | |
| Population - 2010 | 348 | 8,080 | 309,327,143 |
| Population - 2000 | 401 | 7,922 | 285,036,114 |
| Population - 1990 | 528 | 8,263 | 251,960,433 |
| Pop. 2000 to Now | -23.7% | 3.4% | 15.6% |
| Pop. 1990 to Now | -42.1% | -0.9% | 30.8% |
| space4 | | | |
| Population Density | 5.3 | 2,144.2 | 93.4 |
| Land Area | 42.3 | 3.8 | 3,531,905.4 |
| Water Area | 5.6 | 1.1 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | McGrath, AK | Ketchikan, AK | United States |
| Age 0 to 4 | 9.3% | 5.2% | 5.9% |
| Age 5 to 9 | 5.8% | 7.4% | 6.1% |
| Age 10 to 14 | 5.8% | 5.7% | 6.6% |
| Age 15 to 17 | 3.1% | 3.7% | 3.9% |
| Age 18 to 20 | 4.4% | 3.3% | 4.0% |
| Age 21 to 24 | 5.8% | 5.5% | 5.2% |
| Age 25 to 34 | 11.5% | 15.7% | 13.8% |
| Age 35 to 44 | 6.6% | 13.1% | 12.9% |
| Age 45 to 54 | 10.6% | 10.2% | 12.6% |
| Age 55 to 59 | 8.4% | 8.0% | 6.7% |
| Age 60 to 64 | 4.0% | 7.2% | 6.3% |
| Age 65 to 74 | 20.8% | 10.0% | 9.6% |
| Age 75 to 84 | 4.0% | 3.2% | 4.5% |
| Age 85 and over | 0.0% | 2.0% | 1.9% |
| space1 | | | |
| Race | | | |
| | McGrath, AK | Ketchikan, AK | United States |
| White | 20.8% | 52.9% | 59.4% |
| Black | 0.9% | 1.0% | 12.2% |
| Asian | 0.0% | 13.2% | 5.6% |
| Native American | 55.3% | 17.4% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.3% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 18.1% | 9.1% | 3.2% |
| Hispanic | 4.9% | 6.1% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | McGrath, AK | Ketchikan, AK | United States |
| Married Population | 57.5% | 45.3% | 49.8% |
| Currently Married | 54.7% | 44.3% | 48.0% |
| Married but Separated | 2.8% | 0.9% | 1.8% |
| Single Population | 42.5% | 54.7% | 50.2% |
| Never Married | 30.2% | 33.8% | 33.8% |
| Divorced | 5.0% | 14.5% | 10.8% |
| Widowed | 7.3% | 6.5% | 5.6% |
| space5 | | | |
| Household Size | 2.54 | 2.42 | 2.60 |
| Households | 89 | 3,270 | 124,010,992 |
| Family Households | 62 | 1,994 | 80,755,759 |
| Married couple, w/children | 16.1% | 27.5% | 30.5% |
| Married couple, no children | 51.6% | 40.1% | 42.9% |
| Non Family Households | 27 | 1,276 | 43,255,233 |
| Single householder, w/children | 16.1% | 22.1% | 15.8% |
| Single householder, no children | 16.1% | 10.2% | 10.8% |