| | Warden, WA | Kennewick, WA | United States |
| Population | 2,504 | 83,082 | 329,725,481 |
| Female Population | 51.5% | 50.5% | 50.5% |
| Male Population | 48.5% | 49.5% | 49.5% |
| Median Age | 29 | 35.3 | 38.4 |
| space3 | | | |
| Population - 2010 | 2,701 | 74,448 | 309,327,143 |
| Population - 2000 | 2,544 | 54,693 | 285,036,114 |
| Population - 1990 | 1,639 | 42,155 | 251,960,433 |
| Pop. 2000 to Now | 11.4% | 54.5% | 15.6% |
| Pop. 1990 to Now | 72.9% | 100.5% | 30.8% |
| space4 | | | |
| Population Density | 870.4 | 3,026.8 | 93.4 |
| Land Area | 2.9 | 27.4 | 3,531,905.4 |
| Water Area | 0.0 | 1.4 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Warden, WA | Kennewick, WA | United States |
| Age 0 to 4 | 7.4% | 7.4% | 5.9% |
| Age 5 to 9 | 6.2% | 8.1% | 6.1% |
| Age 10 to 14 | 10.2% | 6.4% | 6.6% |
| Age 15 to 17 | 5.7% | 4.2% | 3.9% |
| Age 18 to 20 | 10.3% | 3.8% | 4.0% |
| Age 21 to 24 | 4.6% | 5.0% | 5.2% |
| Age 25 to 34 | 10.5% | 14.7% | 13.8% |
| Age 35 to 44 | 8.8% | 12.9% | 12.9% |
| Age 45 to 54 | 14.5% | 10.4% | 12.6% |
| Age 55 to 59 | 5.2% | 5.8% | 6.7% |
| Age 60 to 64 | 4.9% | 6.2% | 6.3% |
| Age 65 to 74 | 8.1% | 9.4% | 9.6% |
| Age 75 to 84 | 1.6% | 3.8% | 4.5% |
| Age 85 and over | 2.0% | 2.0% | 1.9% |
| space1 | | | |
| Race | | | |
| | Warden, WA | Kennewick, WA | United States |
| White | 17.2% | 62.7% | 59.4% |
| Black | 0.0% | 1.9% | 12.2% |
| Asian | 1.1% | 2.3% | 5.6% |
| Native American | 1.0% | 0.5% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.2% | 0.4% |
| Two or More Races | 3.4% | 3.0% | 3.2% |
| Hispanic | 77.3% | 29.4% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Warden, WA | Kennewick, WA | United States |
| Married Population | 43.3% | 51.2% | 49.8% |
| Currently Married | 39.3% | 49.7% | 48.0% |
| Married but Separated | 4.0% | 1.5% | 1.8% |
| Single Population | 56.7% | 48.8% | 50.2% |
| Never Married | 38.8% | 31.2% | 33.8% |
| Divorced | 10.2% | 13.2% | 10.8% |
| Widowed | 7.7% | 4.3% | 5.6% |
| space5 | | | |
| Household Size | 3.08 | 2.69 | 2.60 |
| Households | 812 | 30,382 | 124,010,992 |
| Family Households | 596 | 20,794 | 80,755,759 |
| Married couple, w/children | 29.7% | 29.1% | 30.5% |
| Married couple, no children | 24.5% | 41.8% | 42.9% |
| Non Family Households | 216 | 9,588 | 43,255,233 |
| Single householder, w/children | 29.9% | 19.3% | 15.8% |
| Single householder, no children | 15.9% | 9.8% | 10.8% |