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)
White36,84482.36%
Two or more races4,0339.02%
Other race2,3245.19%
Asian7901.77%
Black or African American4751.06%
Native American2220.5%
Native Hawaiian or Pacific Islander480.11%

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

37.9

Total

37.6

Male

38

Female

Kittitas County, Washington Adults

There are 36,917 adults, (7,691 of whom are seniors) in Kittitas County, Washington.

Kittitas County, Washington Age Dependency

53.1

Age Dependency Ratio

26.3

Old Age Dependency Ratio

26.8

Child Dependency Ratio

Kittitas County, Washington Sex Ratio

Female22,23949.71%
Male22,49750.29%

Kittitas County, Washington Population by Age

Kittitas County, Washington Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All19,6012.1962.337.7
Married9,2252.885.414.6
Non Family8,1101.3739.360.7
Female1,6452.7751.148.9
Male6212.2750.449.6

2.69

Average Family Size

2.19

Average Household Size

62.3%

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 Grade1,6615.67%
Associates Degree2,5288.64%
Bachelors Degree6,58822.5%
Graduate Degree3,73312.75%
High School Graduate7,94927.15%
Less Than 9th Grade3711.27%
Some College6,44622.02%

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
White24,43322,8898,845
Hispanic2,2051,934586
2+ Races1,9041,846769
Other Race1,3661,072319
Asian448371130
Black25225211
Native American16916940
Islander353527

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

The highest rate of bachelors degrees is among islander people with a rate of 77.14%.

Kittitas County, Washington Educational Attainment by Race

All

Male

Female

Name
Average
Male
Female
Bachelors Degree$62,083$77,000$53,924
Graduate Degree$77,685$87,528$70,099
High School Graduate$41,850$47,360$35,982
Less Than 9th Grade$42,670$58,403$26,042
Overall$53,038$64,416$45,571
Some College$51,944$65,482$46,065

$53,038

Average Earnings

$64,416

Average Male

$45,571

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

92.6% of Kittitas County, Washington residents speak only English, while 7.4% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 5.07% of the population.

Kittitas County, Washington Language

Kittitas County, Washington Poverty by Race

rate

Name
Total
In Poverty
Poverty Rate
White34,4554,51213.1%
Multiple3,79486922.9%
Hispanic4,29573717.16%
Other2,18124111.05%
Black40320450.62%
Asian69911316.17%
Native2003216%
Islander2926.9%

14.31%

Overall Poverty Rate

11.18%

Male Poverty Rate

17.46%

Female Poverty Rate

Poverty in Kittitas County, Washington

The race most likely to be in poverty in Kittitas County, Washington is Black, with 50.62% below the poverty level.

The race least likely to be in poverty in Kittitas County, Washington is Islander, with 6.9% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.35%. Among those working part-time, it was 24.05%, and for those that did not work, the poverty rate was 19.75%.

Kittitas County, Washington Poverty

rate

Rate
Poverty
Less Than 9th Grade19.89%
Some College9.65%
High School8.57%
Bachelors or Greater6.42%

Kittitas County, Washington Poverty Rate by Education

rate

Rate
Poverty
Female Unemployed35.32%
Male Unemployed32.8%
Female Employed11.48%
Male Employed5.7%

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$99,709$119,246
Households$69,928$95,281
Married Families$108,492$130,667
Non Families$38,036$56,996

mean

median

Income by Household Type

Kittitas County, Washington Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

50.3%

Overall Marriage Rate

51.8%

Male Marriage Rate

48.9%

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

2,737

Number of Veterans

2,510

Male Veterans

227

Female Veterans

War
Veterans
Vietnam820
First Gulf War713
Second Gulf War603
Korea103
World War II50

Kittitas County, Washington Veterans by War

count

Age Group
Veterans
35 to 54798
75+737
65 to 74517
55 to 64495
18 to 34190

Kittitas County, Washington Veterans by Age

count

Name
Veterans
% of Total
White2,5058.07%
2+ Races1515.81%
Black5010.62%
Hispanic471.49%
Native American168.65%
Other Race140.77%
Asian10.15%

Kittitas County, Washington Veterans by Race

Kittitas County, Washington Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

8.64%

Veteran Poverty Rate

31.54%

Veteran Disability Rate

Kittitas County, Washington Veterans by Education

LaborForceParticipation

61.4%

Labor Force Participation

58%

Employment Rate

5.1%

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

65.74%

Born in Kittitas County, Washington

96.08%

Native Born

3.92%

Foreign Born

2.01%

Non Citizen

1.91%

Naturalized

Place of Birth

96.08% of Kittitas County, Washington residents were born in the United States, with 65.74% having been born in Washington. 2.01% 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