Census 2010: Washington › Kittitas County

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(Mapping 100 largest census tracts, by 2010 population.)

Kittitas County

Square miles: 2,332.9 Population per sq. mile: 17.8

  • 2010 population: 40,915
  • 2000 population: 33,362
  • Total change: 7,553 (22.6%)

See all Washington counties

2010 population by race/ethnicity

Diversity Index: 26.1%
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.

Age breakdown Median: 31.9 years old

Kittitas County population

Race/ethnicity2010 population2010 percentage2000 population2000 percentage2000-2010 change
White36,54489.3%30,61791.8%19.4%
Black3640.9%2360.7%54.2%
American Indian/Alaska Native3941.0%3030.9%30.0%
Asian8102.0%7312.2%10.8%
Native Hawaiian/Pacific Islander570.1%490.1%16.3%
Other race1,5003.7%7682.3%95.3%
Two or more races1,2463.0%6582.0%89.4%
Total40,915100%33,362100%22.6%
*Hispanic origin3,1217.6%1,6685.0%87.1%

*Residents of Hispanic origin can be of any race.

Ages 0-17

Population: 7,484 (18.3%)

Diversity Index: 45.5%

Ages 18+

Population: 33,431 (81.7%)

Diversity Index: 27.6%

Race/ethnicityAges 0-17% of 0-17 totalAges 18+% of 18+ total
White6,34684.8%30,19890.3%
Black540.7%3100.9%
American Indian/Alaska Native851.1%3090.9%
Asian1081.4%7022.1%
Native Hawaiian/Pacific Islander150.2%420.1%
Other race4856.5%1,0153.0%
Two or more races3915.2%8552.6%
Total7,484100%33,431100%
*Hispanic origin1,08014.4%2,0416.1%

*Residents of Hispanic origin can be of any race.

Gender
Male2010
Population20,793 (50.8%)
Median age30.5
Female2010
Population20,122 (49.2%)
Median age33.2
Age breakdown by gender
AgePopulation% of totalMale% of male totalFemale% of female total
Under 104,07410.0%2,0629.9%2,01210.0%
10 to 19 years6,02614.7%3,03414.6%2,99214.9%
20 to 29 years9,58623.4%5,18825.0%4,39821.9%
30 to 39 years4,0239.8%2,0259.7%1,9989.9%
40 to 49 years4,49911.0%2,25910.9%2,24011.1%
50 to 59 years5,20712.7%2,62412.6%2,58312.8%
60 to 69 years4,09610.0%2,0469.8%2,05010.2%
70 to 79 years2,0805.1%1,0405.0%1,0405.2%
80 and older1,3243.2%5152.5%8094.0%
Total40,915100%20,793100%20,122100%

*Residents of Hispanic origin can be of any race.

Household types
Families 2010
Avg. size 2.9
Households 9,225 (55.6%)
Non-families 2010
Avg. size 2.3
Households 7,370 (44.4%)
Family composition
Households ‡ 2010 % of households % of families
Husband-wife family, without children 4,707 28.4% 51.0%
Husband-wife family, with children under 18 years 2,711 16.3% n/a
Single male, no children (with other family) 300 1.8% 3.3%
Single male, with children under 18 years 291 1.8% n/a
Single female, no children (with other family) 491 3.0% 5.3%
Single female, with children under 18 years 725 4.4% n/a
Single male living alone 2,421 14.6% n/a
Single female living alone 2,346 14.1% n/a
Other non-family households (ex.: roommates) 2,603 15.7% n/a
Total 16,595 100% n/a
Family households 9,225 55.6% 100%
Families with children under 18 years 3,727 22.5% n/a
Non-family households 7,370 44.4% n/a
All households with individuals 65 years and over 3,794 22.9% n/a

‡ United States Census Bureau definitions:

Household — A household includes all of the people who occupy a housing unit. People not living in households are classified as living in group quarters. (Ex: college residence halls, skilled-nursing facilities, military barracks, …)
Family — A family includes a householder and one or more people living in the same household who are related to the householder by birth, marriage, or adoption.
Non-family Household — A householder living alone or with nonrelatives only.

Note: Family households and husband-wife-couple families do not include same-sex married couples even if the marriage was performed in a state issuing marriage certificates for same-sex couples. Same-sex-couple households are included in the family households category if there is at least one additional person related to the householder by birth or adoption. Same-sex-couple households with no relatives of the householder present are tabulated in nonfamily households.

Housing Units
Owner-occupied2010
Population23,281
Avg. household size2.4
Renter-occupied2010
Population15,217
Avg. household size2.2
Vacancies
Vacancy Rate2010
Owner-occupied properties3.2%
Renter-occupied properties6.4%
Overall vacancy rate24.2%
Housing Units2010% of total
Occupied16,59575.8%
Vacant5,305 24.2%
For rent4752.2%
Rented, but unoccupied380.2%
For sale3151.4%
Sold, but unoccupied340.2%
Seasonal use only3,86017.6%
Other vacant units5832.7%
Total21,900100%
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Credits: Ryan Pitts, Mike Tigas Special thanks: USA Today Census team