| | Kenmore, WA | Butte-Silver Bow, MT | United States |
| Population | 23,556 | 34,368 | 329,725,481 |
| Female Population | 48.9% | 48.5% | 50.5% |
| Male Population | 51.1% | 51.5% | 49.5% |
| Median Age | 39.6 | 40.5 | 38.4 |
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| Population - 2010 | 20,588 | 33,531 | 309,327,143 |
| Population - 2000 | 18,678 | 33,892 | 285,036,114 |
| Population - 1990 | 8,917 | 33,336 | 251,960,433 |
| Pop. 2000 to Now | 23.5% | 1.7% | 15.6% |
| Pop. 1990 to Now | 158.6% | 3.4% | 30.8% |
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| Population Density | 3,838.4 | 48.0 | 93.4 |
| Land Area | 6.1 | 715.8 | 3,531,905.4 |
| Water Area | 0.1 | 0.6 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Kenmore, WA | Butte-Silver Bow, MT | United States |
| Age 0 to 4 | 5.9% | 5.9% | 5.9% |
| Age 5 to 9 | 6.1% | 6.0% | 6.1% |
| Age 10 to 14 | 5.8% | 5.5% | 6.6% |
| Age 15 to 17 | 3.3% | 3.3% | 3.9% |
| Age 18 to 20 | 2.6% | 4.8% | 4.0% |
| Age 21 to 24 | 2.2% | 5.8% | 5.2% |
| Age 25 to 34 | 17.5% | 12.0% | 13.8% |
| Age 35 to 44 | 13.7% | 11.9% | 12.9% |
| Age 45 to 54 | 14.6% | 11.6% | 12.6% |
| Age 55 to 59 | 6.8% | 5.6% | 6.7% |
| Age 60 to 64 | 5.5% | 8.6% | 6.3% |
| Age 65 to 74 | 9.2% | 11.5% | 9.6% |
| Age 75 to 84 | 4.6% | 5.9% | 4.5% |
| Age 85 and over | 2.3% | 1.6% | 1.9% |
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| Race | | | |
| | Kenmore, WA | Butte-Silver Bow, MT | United States |
| White | 69.7% | 89.8% | 59.4% |
| Black | 3.2% | 0.2% | 12.2% |
| Asian | 14.6% | 0.5% | 5.6% |
| Native American | 0.1% | 2.3% | 0.6% |
| Hawaiian, Pacific Islander | 0.1% | 0.0% | 0.2% |
| Other | 0.4% | 0.1% | 0.4% |
| Two or More Races | 5.3% | 2.5% | 3.2% |
| Hispanic | 6.6% | 4.8% | 18.4% |
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| Marriage & Family | | | |
| | Kenmore, WA | Butte-Silver Bow, MT | United States |
| Married Population | 56.4% | 47.6% | 49.8% |
| Currently Married | 55.6% | 46.1% | 48.0% |
| Married but Separated | 0.8% | 1.5% | 1.8% |
| Single Population | 43.6% | 52.4% | 50.2% |
| Never Married | 30.1% | 31.7% | 33.8% |
| Divorced | 10.6% | 14.8% | 10.8% |
| Widowed | 3.0% | 5.9% | 5.6% |
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| Household Size | 2.53 | 2.24 | 2.60 |
| Households | 9,266 | 14,731 | 124,010,992 |
| Family Households | 5,981 | 8,056 | 80,755,759 |
| Married couple, w/children | 42.3% | 29.4% | 30.5% |
| Married couple, no children | 42.6% | 47.3% | 42.9% |
| Non Family Households | 3,285 | 6,675 | 43,255,233 |
| Single householder, w/children | 6.2% | 14.8% | 15.8% |
| Single householder, no children | 8.9% | 8.5% | 10.8% |