| | Midland, WA | Frederickson, WA | United States |
| Population | 9,448 | 21,651 | 329,725,481 |
| Female Population | 49.3% | 49.1% | 50.5% |
| Male Population | 50.7% | 50.9% | 49.5% |
| Median Age | 33.6 | 33.1 | 38.4 |
| space3 | | | |
| Population - 2010 | 9,612 | 17,704 | 309,327,143 |
| Population - 2000 | 7,414 | 5,758 | 285,036,114 |
| Population - 1990 | 5,587 | 3,502 | 251,960,433 |
| Pop. 2000 to Now | 28.4% | 308.6% | 15.6% |
| Pop. 1990 to Now | 70.3% | 571.8% | 30.8% |
| space4 | | | |
| Population Density | 3,109.9 | 1,872.3 | 93.4 |
| Land Area | 3.0 | 11.6 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Midland, WA | Frederickson, WA | United States |
| Age 0 to 4 | 7.1% | 7.6% | 5.9% |
| Age 5 to 9 | 8.8% | 10.9% | 6.1% |
| Age 10 to 14 | 7.9% | 8.8% | 6.6% |
| Age 15 to 17 | 2.6% | 3.3% | 3.9% |
| Age 18 to 20 | 2.2% | 2.8% | 4.0% |
| Age 21 to 24 | 6.0% | 3.2% | 5.2% |
| Age 25 to 34 | 18.0% | 17.3% | 13.8% |
| Age 35 to 44 | 13.2% | 15.0% | 12.9% |
| Age 45 to 54 | 9.9% | 10.6% | 12.6% |
| Age 55 to 59 | 6.4% | 6.2% | 6.7% |
| Age 60 to 64 | 5.9% | 3.8% | 6.3% |
| Age 65 to 74 | 7.4% | 6.6% | 9.6% |
| Age 75 to 84 | 2.8% | 3.2% | 4.5% |
| Age 85 and over | 1.7% | 0.6% | 1.9% |
| space1 | | | |
| Race | | | |
| | Midland, WA | Frederickson, WA | United States |
| White | 48.6% | 54.6% | 59.4% |
| Black | 13.1% | 10.0% | 12.2% |
| Asian | 4.5% | 7.7% | 5.6% |
| Native American | 0.6% | 0.3% | 0.6% |
| Hawaiian, Pacific Islander | 3.2% | 1.4% | 0.2% |
| Other | 0.0% | 0.1% | 0.4% |
| Two or More Races | 5.4% | 9.0% | 3.2% |
| Hispanic | 24.5% | 16.9% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Midland, WA | Frederickson, WA | United States |
| Married Population | 47.7% | 56.8% | 49.8% |
| Currently Married | 44.6% | 56.3% | 48.0% |
| Married but Separated | 3.1% | 0.4% | 1.8% |
| Single Population | 52.3% | 43.2% | 50.2% |
| Never Married | 33.0% | 25.8% | 33.8% |
| Divorced | 14.4% | 13.8% | 10.8% |
| Widowed | 4.9% | 3.7% | 5.6% |
| space5 | | | |
| Household Size | 2.89 | 3.17 | 2.60 |
| Households | 3,258 | 6,834 | 124,010,992 |
| Family Households | 2,041 | 5,136 | 80,755,759 |
| Married couple, w/children | 33.9% | 37.9% | 30.5% |
| Married couple, no children | 36.6% | 43.5% | 42.9% |
| Non Family Households | 1,217 | 1,698 | 43,255,233 |
| Single householder, w/children | 19.3% | 15.4% | 15.8% |
| Single householder, no children | 10.2% | 3.3% | 10.8% |