| | Fort Stewart, GA | Fort Lewis, WA | United States |
| Population | 9,340 | 12,773 | 329,725,481 |
| Female Population | 46.1% | 41.3% | 50.5% |
| Male Population | 53.9% | 58.8% | 49.5% |
| Median Age | 21 | 22.7 | 38.4 |
| space3 | | | |
| Population - 2010 | 5,622 | 13,690 | 309,327,143 |
| Population - 2000 | 11,205 | 19,089 | 285,036,114 |
| Population - 1990 | 13,774 | 22,224 | 251,960,433 |
| Pop. 2000 to Now | -58.3% | -21.1% | 15.6% |
| Pop. 1990 to Now | -66.1% | -32.2% | 30.8% |
| space4 | | | |
| Population Density | 932.8 | 1,248.3 | 93.4 |
| Land Area | 10.0 | 10.2 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Fort Stewart, GA | Fort Lewis, WA | United States |
| Age 0 to 4 | 19.4% | 18.7% | 5.9% |
| Age 5 to 9 | 13.0% | 7.5% | 6.1% |
| Age 10 to 14 | 6.1% | 4.2% | 6.6% |
| Age 15 to 17 | 1.8% | 0.9% | 3.9% |
| Age 18 to 20 | 9.7% | 10.1% | 4.0% |
| Age 21 to 24 | 17.7% | 21.7% | 5.2% |
| Age 25 to 34 | 21.8% | 27.6% | 13.8% |
| Age 35 to 44 | 6.9% | 6.7% | 12.9% |
| Age 45 to 54 | 2.6% | 2.2% | 12.6% |
| Age 55 to 59 | 0.5% | 0.4% | 6.7% |
| Age 60 to 64 | 0.4% | 0.0% | 6.3% |
| Age 65 to 74 | 0.0% | 0.0% | 9.6% |
| Age 75 to 84 | 0.1% | 0.0% | 4.5% |
| Age 85 and over | 0.0% | 0.0% | 1.9% |
| space1 | | | |
| Race | | | |
| | Fort Stewart, GA | Fort Lewis, WA | United States |
| White | 49.4% | 50.6% | 59.4% |
| Black | 19.9% | 13.8% | 12.2% |
| Asian | 1.7% | 4.2% | 5.6% |
| Native American | 1.4% | 0.3% | 0.6% |
| Hawaiian, Pacific Islander | 0.2% | 2.1% | 0.2% |
| Other | 0.5% | 0.0% | 0.4% |
| Two or More Races | 6.7% | 6.4% | 3.2% |
| Hispanic | 20.2% | 22.5% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Fort Stewart, GA | Fort Lewis, WA | United States |
| Married Population | 63.9% | 65.7% | 49.8% |
| Currently Married | 62.1% | 64.7% | 48.0% |
| Married but Separated | 1.7% | 1.0% | 1.8% |
| Single Population | 36.1% | 34.3% | 50.2% |
| Never Married | 33.0% | 30.4% | 33.8% |
| Divorced | 2.0% | 3.3% | 10.8% |
| Widowed | 1.1% | 0.6% | 5.6% |
| space5 | | | |
| Household Size | 3.46 | 3.17 | 2.60 |
| Households | 2,277 | 3,187 | 124,010,992 |
| Family Households | 1,962 | 2,956 | 80,755,759 |
| Married couple, w/children | 61.3% | 60.9% | 30.5% |
| Married couple, no children | 19.7% | 28.6% | 42.9% |
| Non Family Households | 315 | 231 | 43,255,233 |
| Single householder, w/children | 17.8% | 10.6% | 15.8% |
| Single householder, no children | 1.2% | 0.0% | 10.8% |