Census 2010: Washington › Counties

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Washington by county

Showing: Cascade School District counties Remove filter

County name 2010 total population 2000 total population Total change
since 2000
2010 White population 2010 White percentage White change
since 2000
King County 1,931,249 1,737,034 11.2% 1,325,845 119,801 16,147 282,075 14,486 76,096 96,799 172,378 1,758,871 54.9% 851,261 68.7% 6.2% 0.8% 14.6% 0.8% 3.9% 5.0% 8.9% 91.1% 44.5% 62,029 0.8% 27.6% 1.4% 50.2% 60.7% 71.1% 37.3% 81.0% 7.1% 7.3%
Snohomish County 713,335 606,024 17.7% 559,011 18,168 9,793 63,385 3,135 27,121 32,722 64,249 649,086 43.7% 286,659 78.4% 2.5% 1.4% 8.9% 0.4% 3.8% 4.6% 9.0% 91.0% 30.3% 18,334 7.7% 79.6% 18.7% 80.9% 83.9% 133.2% 60.8% 124.7% 12.4% 6.4%
Chelan County 72,453 66,616 8.8% 57,484 236 700 588 100 11,355 1,990 18,713 53,740 45.4% 35,465 79.3% 0.3% 1.0% 0.8% 0.1% 15.7% 2.7% 25.8% 74.2% 37.5% 7,638 3.2% 37.2% 5.9% 30.4% 29.9% 39.8% 39.8% 45.8% -0.1% 21.5%
Kittitas County 40,915 33,362 22.6% 36,544 364 394 810 57 1,500 1,246 3,121 37,794 26.1% 21,900 89.3% 0.9% 1.0% 2.0% 0.1% 3.7% 3.0% 7.6% 92.4% 20.1% 5,305 19.4% 54.2% 30.0% 10.8% 16.3% 95.3% 89.4% 87.1% 19.2% 24.2%
County name Total
households
Husband/wife
with children
Husband/wife
no children
Single male
with children
Single male
living alone
Single female
with children
Single female
living alone
King County 789,232 20.1% 25.2% 1.9% 14.6% 5.1% 16.4%
Snohomish County 268,325 23.6% 28.8% 2.7% 11.4% 6.0% 12.9%
Chelan County 27,827 20.6% 32.1% 2.8% 11.8% 6.0% 14.5%
Kittitas County 16,595 16.3% 28.4% 1.8% 14.6% 4.4% 14.1%
County name Family
households
Family
households %
Families
with kids
Families
with kids %
Non-family
households
Non-family
households %
Households
with seniors
Households
with seniors %
King County 461,510 58.5% 213,507 27.1% 327,722 41.5% 154,215 19.5%
Snohomish County 182,282 67.9% 86,756 32.3% 86,043 32.1% 53,584 20.0%
Chelan County 18,795 67.5% 8,157 29.3% 9,032 32.5% 7,990 28.7%
Kittitas County 9,225 55.6% 3,727 22.5% 7,370 44.4% 3,794 22.9%
County name Under 10 10-19 20-29 30-39 40-49 50-59 60-69 70-79 80 plus
King County 12.1% 11.8% 15.0% 15.6% 15.3% 14.0% 8.8% 4.2% 3.2%
Snohomish County 13.2% 13.8% 13.2% 14.0% 15.7% 14.5% 8.6% 4.1% 2.8%
Chelan County 13.5% 14.2% 11.8% 11.3% 12.9% 14.8% 10.6% 6.3% 4.7%
Kittitas County 10.0% 14.7% 23.4% 9.8% 11.0% 12.7% 10.0% 5.1% 3.2%
County name Total population Median age Male total Male percentage Female total Female percentage
King County 1,931,249 37.1 962,090 49.8% 969,159 50.2%
Snohomish County 713,335 37.1 356,958 50.0% 356,377 50.0%
Chelan County 72,453 39.3 36,130 49.9% 36,323 50.1%
Kittitas County 40,915 31.9 20,793 50.8% 20,122 49.2%

* The USA TODAY Diversity Index represents the probability that two people from this area will have different ethnic backgrounds. A higher number reflects a more ethnically diverse population.

Credits: Ryan Pitts, Mike Tigas Special thanks: USA Today Census team