| | Redmond, WA | Port Ludlow, WA | United States |
| Population | 72,166 | 3,046 | 329,725,481 |
| Female Population | 48.7% | 52.6% | 50.5% |
| Male Population | 51.3% | 47.4% | 49.5% |
| Median Age | 34.6 | 62.3 | 38.4 |
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| Population - 2010 | 54,731 | 3,011 | 309,327,143 |
| Population - 2000 | 45,256 | 1,968 | 285,036,114 |
| Population - 1990 | 35,800 | 936 | 251,960,433 |
| Pop. 2000 to Now | 60.2% | 44.5% | 15.6% |
| Pop. 1990 to Now | 102.5% | 203.9% | 30.8% |
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| Population Density | 4,357.1 | 264.0 | 93.4 |
| Land Area | 16.6 | 11.5 | 3,531,905.4 |
| Water Area | 0.7 | 2.6 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Redmond, WA | Port Ludlow, WA | United States |
| Age 0 to 4 | 7.2% | 5.3% | 5.9% |
| Age 5 to 9 | 7.3% | 3.3% | 6.1% |
| Age 10 to 14 | 5.3% | 5.1% | 6.6% |
| Age 15 to 17 | 3.3% | 0.8% | 3.9% |
| Age 18 to 20 | 2.2% | 1.3% | 4.0% |
| Age 21 to 24 | 4.1% | 1.1% | 5.2% |
| Age 25 to 34 | 21.7% | 7.2% | 13.8% |
| Age 35 to 44 | 18.5% | 7.6% | 12.9% |
| Age 45 to 54 | 11.0% | 9.8% | 12.6% |
| Age 55 to 59 | 4.5% | 6.3% | 6.7% |
| Age 60 to 64 | 4.5% | 7.6% | 6.3% |
| Age 65 to 74 | 6.0% | 22.4% | 9.6% |
| Age 75 to 84 | 2.8% | 19.8% | 4.5% |
| Age 85 and over | 1.7% | 2.4% | 1.9% |
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| Race | | | |
| | Redmond, WA | Port Ludlow, WA | United States |
| White | 48.7% | 84.4% | 59.4% |
| Black | 1.9% | 0.0% | 12.2% |
| Asian | 37.6% | 3.3% | 5.6% |
| Native American | 0.1% | 0.5% | 0.6% |
| Hawaiian, Pacific Islander | 0.1% | 1.7% | 0.2% |
| Other | 0.5% | 0.0% | 0.4% |
| Two or More Races | 4.1% | 2.4% | 3.2% |
| Hispanic | 7.1% | 7.7% | 18.4% |
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| Marriage & Family | | | |
| | Redmond, WA | Port Ludlow, WA | United States |
| Married Population | 61.5% | 66.0% | 49.8% |
| Currently Married | 60.7% | 64.3% | 48.0% |
| Married but Separated | 0.8% | 1.6% | 1.8% |
| Single Population | 38.5% | 34.0% | 50.2% |
| Never Married | 28.3% | 15.5% | 33.8% |
| Divorced | 7.5% | 10.0% | 10.8% |
| Widowed | 2.6% | 8.6% | 5.6% |
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| Household Size | 2.48 | 2.12 | 2.60 |
| Households | 29,024 | 1,434 | 124,010,992 |
| Family Households | 18,935 | 1,045 | 80,755,759 |
| Married couple, w/children | 46.3% | 9.8% | 30.5% |
| Married couple, no children | 40.8% | 67.9% | 42.9% |
| Non Family Households | 10,089 | 389 | 43,255,233 |
| Single householder, w/children | 7.6% | 12.2% | 15.8% |
| Single householder, no children | 5.3% | 10.1% | 10.8% |