| | Yakima, WA | Eagle, ID | United States |
| Population | 96,266 | 29,665 | 329,725,481 |
| Female Population | 50.1% | 51.0% | 50.5% |
| Male Population | 50.0% | 49.0% | 49.5% |
| Median Age | 33.6 | 45.5 | 38.4 |
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| Population - 2010 | 91,647 | 20,012 | 309,327,143 |
| Population - 2000 | 71,845 | 11,085 | 285,036,114 |
| Population - 1990 | 54,827 | 3,327 | 251,960,433 |
| Pop. 2000 to Now | 31.3% | 186.0% | 15.6% |
| Pop. 1990 to Now | 72.0% | 852.8% | 30.8% |
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| Population Density | 3,467.8 | 974.5 | 93.4 |
| Land Area | 27.8 | 30.4 | 3,531,905.4 |
| Water Area | 0.4 | 0.5 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Yakima, WA | Eagle, ID | United States |
| Age 0 to 4 | 7.4% | 5.3% | 5.9% |
| Age 5 to 9 | 7.8% | 5.6% | 6.1% |
| Age 10 to 14 | 8.1% | 8.5% | 6.6% |
| Age 15 to 17 | 4.9% | 5.3% | 3.9% |
| Age 18 to 20 | 4.0% | 2.8% | 4.0% |
| Age 21 to 24 | 5.6% | 1.9% | 5.2% |
| Age 25 to 34 | 14.0% | 7.7% | 13.8% |
| Age 35 to 44 | 12.6% | 12.2% | 12.9% |
| Age 45 to 54 | 10.8% | 13.3% | 12.6% |
| Age 55 to 59 | 4.8% | 8.4% | 6.7% |
| Age 60 to 64 | 4.8% | 7.0% | 6.3% |
| Age 65 to 74 | 8.2% | 14.2% | 9.6% |
| Age 75 to 84 | 4.2% | 6.3% | 4.5% |
| Age 85 and over | 2.8% | 1.5% | 1.9% |
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| Race | | | |
| | Yakima, WA | Eagle, ID | United States |
| White | 45.6% | 85.6% | 59.4% |
| Black | 1.4% | 0.6% | 12.2% |
| Asian | 1.0% | 1.7% | 5.6% |
| Native American | 0.9% | 0.4% | 0.6% |
| Hawaiian, Pacific Islander | 0.9% | 0.4% | 0.2% |
| Other | 0.2% | 0.2% | 0.4% |
| Two or More Races | 3.6% | 3.0% | 3.2% |
| Hispanic | 46.4% | 8.1% | 18.4% |
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| Marriage & Family | | | |
| | Yakima, WA | Eagle, ID | United States |
| Married Population | 46.3% | 67.2% | 49.8% |
| Currently Married | 43.8% | 67.0% | 48.0% |
| Married but Separated | 2.5% | 0.1% | 1.8% |
| Single Population | 53.7% | 32.8% | 50.2% |
| Never Married | 36.1% | 20.3% | 33.8% |
| Divorced | 11.3% | 7.7% | 10.8% |
| Widowed | 6.4% | 4.9% | 5.6% |
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| Household Size | 2.74 | 2.64 | 2.60 |
| Households | 34,284 | 11,221 | 124,010,992 |
| Family Households | 22,350 | 8,869 | 80,755,759 |
| Married couple, w/children | 31.4% | 32.3% | 30.5% |
| Married couple, no children | 34.8% | 54.8% | 42.9% |
| Non Family Households | 11,934 | 2,352 | 43,255,233 |
| Single householder, w/children | 24.4% | 9.4% | 15.8% |
| Single householder, no children | 9.4% | 3.6% | 10.8% |