| Happy Valley, OR | Walnut Creek, CA | United States |
Population | 23,442 | 69,876 | 329,725,481 |
Female Population | 51.1% | 52.4% | 50.5% |
Male Population | 49.0% | 47.6% | 49.5% |
Median Age | 39 | 47.8 | 38.4 |
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Population - 2010 | 15,337 | 64,376 | 309,327,143 |
Population - 2000 | 4,519 | 64,296 | 285,036,114 |
Population - 1990 | 1,519 | 60,569 | 251,960,433 |
Pop. 2000 to Now | 426.2% | 8.8% | 15.6% |
Pop. 1990 to Now | 1,465.6% | 15.5% | 30.8% |
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Population Density | 2,641.1 | 3,537.0 | 93.4 |
Land Area | 8.9 | 19.8 | 3,531,905.4 |
Water Area | 0.0 | 0.0 | 264,836.8 |
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Est. Total Population By Age | | | |
| Happy Valley, OR | Walnut Creek, CA | United States |
Age 0 to 4 | 4.2% | 4.8% | 5.9% |
Age 5 to 9 | 9.2% | 4.5% | 6.1% |
Age 10 to 14 | 9.2% | 3.8% | 6.6% |
Age 15 to 17 | 5.4% | 2.9% | 3.9% |
Age 18 to 20 | 3.9% | 2.0% | 4.0% |
Age 21 to 24 | 3.7% | 3.2% | 5.2% |
Age 25 to 34 | 9.6% | 13.8% | 13.8% |
Age 35 to 44 | 15.9% | 12.2% | 12.9% |
Age 45 to 54 | 14.3% | 10.5% | 12.6% |
Age 55 to 59 | 5.2% | 6.8% | 6.7% |
Age 60 to 64 | 6.0% | 5.9% | 6.3% |
Age 65 to 74 | 7.7% | 14.2% | 9.6% |
Age 75 to 84 | 3.5% | 9.5% | 4.5% |
Age 85 and over | 2.3% | 5.8% | 1.9% |
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Race | | | |
| Happy Valley, OR | Walnut Creek, CA | United States |
White | 63.6% | 63.4% | 59.4% |
Black | 0.9% | 2.3% | 12.2% |
Asian | 19.8% | 17.7% | 5.6% |
Native American | 0.4% | 0.1% | 0.6% |
Hawaiian, Pacific Islander | 0.1% | 0.4% | 0.2% |
Other | 1.6% | 0.1% | 0.4% |
Two or More Races | 7.2% | 6.0% | 3.2% |
Hispanic | 6.4% | 10.1% | 18.4% |
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Marriage & Family | | | |
| Happy Valley, OR | Walnut Creek, CA | United States |
Married Population | 58.3% | 55.5% | 49.8% |
Currently Married | 58.0% | 54.2% | 48.0% |
Married but Separated | 0.4% | 1.3% | 1.8% |
Single Population | 41.7% | 44.5% | 50.2% |
Never Married | 28.8% | 25.6% | 33.8% |
Divorced | 8.7% | 10.5% | 10.8% |
Widowed | 4.2% | 8.4% | 5.6% |
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Household Size | 3.15 | 2.15 | 2.60 |
Households | 7,432 | 32,126 | 124,010,992 |
Family Households | 5,978 | 18,388 | 80,755,759 |
Married couple, w/children | 40.7% | 29.4% | 30.5% |
Married couple, no children | 42.0% | 55.3% | 42.9% |
Non Family Households | 1,454 | 13,738 | 43,255,233 |
Single householder, w/children | 12.7% | 7.8% | 15.8% |
Single householder, no children | 4.5% | 7.5% | 10.8% |