| | Kendall, WA | Elma, WA | United States |
| Population | 930 | 3,390 | 329,725,481 |
| Female Population | 54.8% | 53.1% | 50.5% |
| Male Population | 45.2% | 46.9% | 49.5% |
| Median Age | 38.6 | 41.7 | 38.4 |
| space3 | | | |
| Population - 2010 | 422 | 3,294 | 309,327,143 |
| Population - 2000 | 158 | 3,049 | 285,036,114 |
| Population - 1990 | 143 | 3,011 | 251,960,433 |
| Pop. 2000 to Now | -74.7% | 10.8% | 15.6% |
| Pop. 1990 to Now | -72.0% | 12.2% | 30.8% |
| space4 | | | |
| Population Density | 1,143.9 | 1,329.4 | 93.4 |
| Land Area | 0.8 | 2.6 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Kendall, WA | Elma, WA | United States |
| Age 0 to 4 | 3.0% | 5.5% | 5.9% |
| Age 5 to 9 | 9.1% | 3.8% | 6.1% |
| Age 10 to 14 | 7.6% | 8.0% | 6.6% |
| Age 15 to 17 | 4.3% | 0.9% | 3.9% |
| Age 18 to 20 | 0.0% | 3.8% | 4.0% |
| Age 21 to 24 | 8.2% | 5.6% | 5.2% |
| Age 25 to 34 | 15.2% | 12.0% | 13.8% |
| Age 35 to 44 | 9.8% | 12.6% | 12.9% |
| Age 45 to 54 | 24.3% | 6.9% | 12.6% |
| Age 55 to 59 | 11.1% | 6.4% | 6.7% |
| Age 60 to 64 | 4.9% | 12.4% | 6.3% |
| Age 65 to 74 | 0.0% | 14.1% | 9.6% |
| Age 75 to 84 | 2.5% | 7.9% | 4.5% |
| Age 85 and over | 0.0% | 0.0% | 1.9% |
| space1 | | | |
| Race | | | |
| | Kendall, WA | Elma, WA | United States |
| White | 85.5% | 92.7% | 59.4% |
| Black | 0.0% | 0.0% | 12.2% |
| Asian | 0.0% | 0.5% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 0.0% | 3.6% | 3.2% |
| Hispanic | 14.5% | 3.2% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Kendall, WA | Elma, WA | United States |
| Married Population | 43.8% | 53.4% | 49.8% |
| Currently Married | 43.8% | 51.5% | 48.0% |
| Married but Separated | 0.0% | 1.8% | 1.8% |
| Single Population | 56.2% | 46.6% | 50.2% |
| Never Married | 37.1% | 23.7% | 33.8% |
| Divorced | 17.3% | 18.0% | 10.8% |
| Widowed | 1.7% | 4.9% | 5.6% |
| space5 | | | |
| Household Size | 2.94 | 2.52 | 2.60 |
| Households | 316 | 1,328 | 124,010,992 |
| Family Households | 196 | 836 | 80,755,759 |
| Married couple, w/children | 54.1% | 18.1% | 30.5% |
| Married couple, no children | 20.4% | 53.7% | 42.9% |
| Non Family Households | 120 | 492 | 43,255,233 |
| Single householder, w/children | 25.5% | 25.8% | 15.8% |
| Single householder, no children | 0.0% | 2.4% | 10.8% |