Kittitas County, Washington Population 2024

45,894

Kittitas County, Washington's estimated 2024 population is 45,894 with a growth rate of 0.85% in the past year according to the most recent United States census data. Kittitas County, Washington is the 24th largest county in Washington. The 2010 population was 40,992 and has seen a growth of 11.96% since that time.

Note: data after 2022 is projected based on recent change
Year
Population
Growth
Change
202947,8243860.81%
202847,4383860.82%
202747,0523860.83%
202646,6663860.83%
202546,2803860.84%
202445,8943860.85%
202345,5083860.86%
202245,1224771.07%
202144,645460.1%
202044,599-3,257-6.81%
201947,8565151.09%
201847,3411,1772.55%
201746,1641,2422.76%
201644,9221,8024.18%
201543,1205011.18%
201442,6197741.85%
201341,8452090.5%
201241,636750.18%
201141,5615691.39%
201040,99200%
199026,7251,8487.43%
198024,877-162-0.65%
197025,0394,57222.34%
196020,467-1,768-7.95%
195022,2352,0059.91%
194020,2302,07611.44%
193018,1544172.35%
192017,737-824-4.44%
191018,5618,85791.27%
19009,70492710.56%
18908,777-39,047-81.65%
2024 Growth Rate
0.85% (386)
County Website
Kittitas County
County Seat
Ellensburg
2020 Population
44,599
Area
2297 mi²
Density
20 people/mi²
Growth Since 2020
2.9% (1,295)
Founded
November 24, 1883

Population by Race

Race
Population
Percentage (of total)
White37,13983.6%
Two or more races3,7918.53%
Other race2,1094.75%
Asian6111.38%
Black or African American4020.9%
Native American2200.5%
Native Hawaiian or Pacific Islander1520.34%

White

Two or more races

Other race

Asian

Black or African American

Native American

Native Hawaiian or Pacific Islander

Kittitas County, Washington Population by Race

Kittitas County, Washington Population Pyramid 2024

Kittitas County, Washington Median Age

36.4

Total

35.5

Male

37.2

Female

Kittitas County, Washington Adults

There are 36,709 adults, (7,464 of whom are seniors) in Kittitas County, Washington.

Kittitas County, Washington Age Dependency

51.9

Age Dependency Ratio

25.5

Old Age Dependency Ratio

26.4

Child Dependency Ratio

Kittitas County, Washington Sex Ratio

Female22,03949.61%
Male22,38550.39%

Kittitas County, Washington Population by Age

Kittitas County, Washington Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All19,2502.261.538.5
Married9,0202.7783.816.2
Non Family7,9171.4138.361.7
Female1,5042.8252.547.5
Male8092.3557.742.3

2.69

Average Family Size

2.2

Average Household Size

61.5%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Kittitas County, Washington Households and Families

Male

Female

Education Attained
Count
Percentage
9th to 12th Grade1,4965.29%
Associates Degree2,1747.68%
Bachelors Degree6,51523.02%
Graduate Degree3,69113.04%
High School Graduate7,50726.52%
Less Than 9th Grade4461.58%
Some College6,47722.88%

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Kittitas County, Washington Educational Attainment by Sex (over 25)

Kittitas County, Washington Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

Race
Total
High School
Bachelors
White24,19522,6918,834
Hispanic1,8281,612503
2+ Races1,5641,505672
Other Race1,2011,003342
Asian301222109
Native American16516537
Black1141114
Islander747421

The highest rate of high school graduation is among native american people with a rate of 100%.

The highest rate of bachelors degrees is among 2+ races people with a rate of 42.97%.

Kittitas County, Washington Educational Attainment by Race

All

Male

Female

Name
Average
Male
Female
Bachelors Degree$51,349$59,356$44,794
Graduate Degree$74,702$83,667$66,797
High School Graduate$41,349$53,494$30,455
Less Than 9th Grade$41,470$55,882$27,986
Overall$50,159$58,546$43,221
Some College$47,285$53,135$44,176

$50,159

Average Earnings

$58,546

Average Male

$43,221

Average Female

Kittitas County, Washington Earnings by Educational Attainment

Kittitas County, Washington Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Kittitas County, Washington Language

93.5% of Kittitas County, Washington residents speak only English, while 6.5% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 4.58% of the population.

Kittitas County, Washington Language

Kittitas County, Washington Poverty by Race

rate

Name
Total
In Poverty
Poverty Rate
White34,3694,55013.24%
Multiple3,54886224.3%
Hispanic3,94572418.35%
Other1,94324412.56%
Black29621171.28%
Asian5308115.28%
Native1833720.22%
Islander12121.65%

14.49%

Overall Poverty Rate

11.03%

Male Poverty Rate

17.98%

Female Poverty Rate

Poverty in Kittitas County, Washington

The race most likely to be in poverty in Kittitas County, Washington is Black, with 71.28% below the poverty level.

The race least likely to be in poverty in Kittitas County, Washington is Islander, with 1.65% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.24%. Among those working part-time, it was 27.41%, and for those that did not work, the poverty rate was 17.52%.

Kittitas County, Washington Poverty

rate

Rate
Poverty
Less Than 9th Grade16.24%
Some College9.28%
High School8.53%
Bachelors or Greater5.17%

Kittitas County, Washington Poverty Rate by Education

rate

Rate
Poverty
Female Unemployed35.99%
Male Unemployed27.1%
Female Employed14.1%
Male Employed6.72%

Kittitas County, Washington Poverty Rate by Employment Status and Sex

Kittitas County, Washington Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

Name
Median
Mean
Families$94,018$114,807
Households$66,800$91,848
Married Families$102,011$126,453
Non Families$36,785$55,604

mean

median

Income by Household Type

Kittitas County, Washington Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

49.2%

Overall Marriage Rate

50.7%

Male Marriage Rate

47.6%

Female Marriage Rate

Kittitas County, Washington Married by Age and Sex

male

female

Kittitas County, Washington Marriage

The age group where males are most likely to be married is 35-44, while the female age group most likely to be married is 35-44.

Kittitas County, Washington Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Kittitas County, Washington Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

2,865

Number of Veterans

2,685

Male Veterans

180

Female Veterans

War
Veterans
Vietnam1,034
First Gulf War670
Second Gulf War541
Korea102
World War II56

Kittitas County, Washington Veterans by War

count

Age Group
Veterans
35 to 54745
75+717
65 to 74698
55 to 64518
18 to 34187

Kittitas County, Washington Veterans by Age

count

Name
Veterans
% of Total
White2,6478.45%
2+ Races1074.36%
Hispanic692.35%
Black5615.14%
Native American2713.85%
Other Race251.45%
Asian30.62%

Kittitas County, Washington Veterans by Race

Kittitas County, Washington Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

5.35%

Veteran Poverty Rate

31.01%

Veteran Disability Rate

Kittitas County, Washington Veterans by Education

LaborForceParticipation

62.5%

Labor Force Participation

58.7%

Employment Rate

5.9%

Unemployment Rate

Kittitas County, Washington Employment by Age

LaborForceParticipation

Kittitas County, Washington Employment by Race

LaborForceParticipation

Kittitas County, Washington Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

65.99%

Born in Kittitas County, Washington

96.62%

Native Born

3.38%

Foreign Born

1.71%

Non Citizen

1.67%

Naturalized

Place of Birth

96.62% of Kittitas County, Washington residents were born in the United States, with 65.99% having been born in Washington. 1.71% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Kittitas County, Washington Place of Birth

Sources