Cowlitz County, Washington Population 2024

113,664

Cowlitz County, Washington's estimated 2024 population is 113,664 with a growth rate of 0.71% in the past year according to the most recent United States census data. Cowlitz County, Washington is the 12th largest county in Washington. The 2010 population was 102,358 and has seen a growth of 11.05% since that time.

Note: data after 2022 is projected based on recent change

34 Rows

Year
Population
Growth
Change
2029117,6648000.68%
2028116,8648000.69%
2027116,0648000.69%
2026115,2648000.7%
2025114,4648000.7%
2024113,6648000.71%
2023112,8648000.71%
2022112,0643790.34%
2021111,6856710.6%
2020111,0146250.57%
2019110,3891,7161.58%
2018108,6731,8731.75%
2017106,8002,0401.95%
2016104,7601,7291.68%
2015103,0311,2201.2%
2014101,8113140.31%
2013101,497-172-0.17%
2012101,669-644-0.63%
2011102,313-45-0.04%
2010102,35800%
199082,1192,5713.23%
198079,54810,93215.93%
197068,61610,81518.71%
196057,8014,4328.3%
195053,36913,21432.91%
194040,1558,24925.85%
193031,90620,115170.6%
192011,791-770-6.13%
191012,5614,68459.46%
19007,8771,96033.12%
18905,9173,855186.95%
18802,0621,332182.47%
187073032479.8%
1860406-117,258-99.65%
2024 Growth Rate
0.71% (800)
County Website
Cowlitz County
County Seat
Kelso
2020 Population
111,014
Area
1141 mi²
Density
100 people/mi²
Growth Since 2020
2.39% (2,650)
Founded
April 21, 1854

Population by Race

Race
Population
Percentage (of total)
White95,07085.94%
Two or more races8,9168.06%
Other race2,4382.2%
Native American1,6871.53%
Asian1,3681.24%
Black or African American8320.75%
Native Hawaiian or Pacific Islander3100.28%

White

Two or more races

Other race

Native American

Asian

Black or African American

Native Hawaiian or Pacific Islander

Cowlitz County, Washington Population by Race

Cowlitz County, Washington Population Pyramid 2024

Cowlitz County, Washington Median Age

40.8

Total

39.7

Male

42.1

Female

Cowlitz County, Washington Adults

There are 85,626 adults, (21,291 of whom are seniors) in Cowlitz County, Washington.

Cowlitz County, Washington Age Dependency

71.9

Age Dependency Ratio

33.1

Old Age Dependency Ratio

38.9

Child Dependency Ratio

Cowlitz County, Washington Sex Ratio

Female55,20449.9%
Male55,41750.1%

Cowlitz County, Washington Population by Age

Cowlitz County, Washington Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All43,1672.5366.433.6
Married20,8483.158119
Non Family15,0591.2754.345.7
Female5,0663.443.856.2
Male2,1943.3763.336.7

3.07

Average Family Size

2.53

Average Household Size

66.4%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Cowlitz County, Washington Households and Families

Male

Female

Education Attained
Count
Percentage
9th to 12th Grade5,1096.63%
Associates Degree9,80912.73%
Bachelors Degree8,67911.26%
Graduate Degree4,1105.33%
High School Graduate24,52831.82%
Less Than 9th Grade2,5473.3%
Some College22,29028.92%

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

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

Cowlitz County, Washington Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

Race
Total
High School
Bachelors
White66,04660,62511,378
Hispanic5,0853,550416
2+ Races4,6203,965672
Other Race1,355909210
Asian1,109797277
Native American92972026
Black52946118
Islander22018861

The highest rate of high school graduation is among white people with a rate of 91.79%.

The highest rate of bachelors degrees is among islander people with a rate of 27.73%.

Cowlitz County, Washington Educational Attainment by Race

All

Male

Female

Name
Average
Male
Female
Bachelors Degree$63,523$79,525$48,380
Graduate Degree$65,257$64,114$66,035
High School Graduate$38,838$52,526$28,545
Less Than 9th Grade$34,118$41,588$24,035
Overall$47,154$57,680$35,069
Some College$50,291$60,428$36,224

$47,154

Average Earnings

$57,680

Average Male

$35,069

Average Female

Cowlitz County, Washington Earnings by Educational Attainment

Cowlitz County, Washington Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Cowlitz County, Washington Language

92.33% of Cowlitz County, Washington residents speak only English, while 7.67% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 5.32% of the population.

Cowlitz County, Washington Language

Cowlitz County, Washington Poverty by Race

rate

Name
Total
In Poverty
Poverty Rate
White88,7579,87911.13%
Hispanic10,7392,17320.23%
Multiple8,8011,47416.75%
Native1,61464439.9%
Other2,41535314.62%
Black82319723.94%
Asian1,368402.92%
Islander30930.97%

12.14%

Overall Poverty Rate

11.19%

Male Poverty Rate

13.1%

Female Poverty Rate

Poverty in Cowlitz County, Washington

The race most likely to be in poverty in Cowlitz County, Washington is Native, with 39.9% below the poverty level.

The race least likely to be in poverty in Cowlitz County, Washington is Islander, with 0.97% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.54%. Among those working part-time, it was 13.8%, and for those that did not work, the poverty rate was 18.36%.

Cowlitz County, Washington Poverty

rate

Rate
Poverty
Less Than 9th Grade21.25%
High School13.29%
Some College9.1%
Bachelors or Greater5.9%

Cowlitz County, Washington Poverty Rate by Education

rate

Rate
Poverty
Female Unemployed24.09%
Male Unemployed17.79%
Female Employed5.98%
Male Employed3.5%

Cowlitz County, Washington Poverty Rate by Employment Status and Sex

Cowlitz County, Washington Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

Name
Median
Mean
Families$83,138$104,289
Households$70,912$89,300
Married Families$98,290$119,038
Non Families$39,338$54,601

mean

median

Income by Household Type

Cowlitz County, Washington Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

49.1%

Overall Marriage Rate

49.5%

Male Marriage Rate

48.6%

Female Marriage Rate

Cowlitz County, Washington Married by Age and Sex

male

female

Cowlitz County, Washington Marriage

The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 55-64.

Cowlitz County, Washington Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Cowlitz County, Washington Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

8,628

Number of Veterans

7,999

Male Veterans

629

Female Veterans

War
Veterans
Vietnam3,083
Second Gulf War1,644
First Gulf War1,478
Korea417
World War II81

Cowlitz County, Washington Veterans by War

count

Age Group
Veterans
65 to 742,269
75+2,003
35 to 541,951
55 to 641,860
18 to 34545

Cowlitz County, Washington Veterans by Age

count

Name
Veterans
% of Total
White7,8160.10370586596255656
2+ Races4420.07919727647375023
Hispanic2970.045826261379416755
Other Race1250.08294625082946251
Native American960.08563782337198929
Islander890.3991031390134529
Black350.059322033898305086
Asian250.02074688796680498

Cowlitz County, Washington Veterans by Race

Cowlitz County, Washington Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

7.77%

Veteran Poverty Rate

35.07%

Veteran Disability Rate

Cowlitz County, Washington Veterans by Education

LaborForceParticipation

56.2%

Labor Force Participation

53%

Employment Rate

5.5%

Unemployment Rate

Cowlitz County, Washington Employment by Age

LaborForceParticipation

Cowlitz County, Washington Employment by Race

LaborForceParticipation

Cowlitz 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

52.57%

Born in Cowlitz County, Washington

95.87%

Native Born

4.13%

Foreign Born

2.12%

Non Citizen

2.02%

Naturalized

Place of Birth

95.87% of Cowlitz County, Washington residents were born in the United States, with 52.57% having been born in Washington. 2.12% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Cowlitz County, Washington Place of Birth

Sources