| | Montrose, VA | Snoqualmie, WA | United States |
| Population | 7,612 | 13,718 | 329,725,481 |
| Female Population | 63.3% | 52.2% | 50.5% |
| Male Population | 36.8% | 47.8% | 49.5% |
| Median Age | 42.5 | 37.1 | 38.4 |
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| Population - 2010 | 7,182 | 10,756 | 309,327,143 |
| Population - 2000 | 7,018 | 1,631 | 285,036,114 |
| Population - 1990 | 6,405 | 1,546 | 251,960,433 |
| Pop. 2000 to Now | 18.4% | 731.1% | 15.6% |
| Pop. 1990 to Now | 29.7% | 776.8% | 30.8% |
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| Population Density | 2,364.7 | 1,909.3 | 93.4 |
| Land Area | 3.2 | 7.2 | 3,531,905.4 |
| Water Area | 0.1 | 0.2 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Montrose, VA | Snoqualmie, WA | United States |
| Age 0 to 4 | 4.1% | 7.0% | 5.9% |
| Age 5 to 9 | 5.9% | 10.3% | 6.1% |
| Age 10 to 14 | 6.8% | 10.6% | 6.6% |
| Age 15 to 17 | 3.2% | 4.8% | 3.9% |
| Age 18 to 20 | 2.6% | 1.2% | 4.0% |
| Age 21 to 24 | 6.2% | 1.1% | 5.2% |
| Age 25 to 34 | 9.2% | 9.6% | 13.8% |
| Age 35 to 44 | 17.4% | 22.7% | 12.9% |
| Age 45 to 54 | 12.5% | 16.8% | 12.6% |
| Age 55 to 59 | 5.0% | 5.3% | 6.7% |
| Age 60 to 64 | 8.5% | 3.8% | 6.3% |
| Age 65 to 74 | 10.2% | 5.4% | 9.6% |
| Age 75 to 84 | 3.7% | 0.9% | 4.5% |
| Age 85 and over | 4.8% | 0.5% | 1.9% |
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| Race | | | |
| | Montrose, VA | Snoqualmie, WA | United States |
| White | 17.7% | 77.7% | 59.4% |
| Black | 74.5% | 0.4% | 12.2% |
| Asian | 0.7% | 11.7% | 5.6% |
| Native American | 0.0% | 0.1% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.1% | 0.4% |
| Two or More Races | 4.6% | 5.2% | 3.2% |
| Hispanic | 2.6% | 4.8% | 18.4% |
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| Marriage & Family | | | |
| | Montrose, VA | Snoqualmie, WA | United States |
| Married Population | 29.4% | 72.1% | 49.8% |
| Currently Married | 24.9% | 72.1% | 48.0% |
| Married but Separated | 4.5% | 0.1% | 1.8% |
| Single Population | 70.6% | 27.9% | 50.2% |
| Never Married | 39.6% | 17.3% | 33.8% |
| Divorced | 20.5% | 8.5% | 10.8% |
| Widowed | 10.5% | 2.1% | 5.6% |
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| Household Size | 2.20 | 3.13 | 2.60 |
| Households | 3,460 | 4,381 | 124,010,992 |
| Family Households | 1,918 | 3,890 | 80,755,759 |
| Married couple, w/children | 8.7% | 53.9% | 30.5% |
| Married couple, no children | 27.9% | 34.6% | 42.9% |
| Non Family Households | 1,542 | 491 | 43,255,233 |
| Single householder, w/children | 31.9% | 7.0% | 15.8% |
| Single householder, no children | 31.5% | 4.5% | 10.8% |