Adams County, Washington Population 2024

20,742

Adams County, Washington's estimated 2024 population is 20,742 with a growth rate of -0.37% in the past year according to the most recent United States census data. Adams County, Washington is the 31st largest county in Washington. The 2010 population was 18,791 and has seen a growth of 10.38% since that time.

Note: data after 2022 is projected based on recent change

31 Rows

Year
Population
Growth
Change
202920,352-78-0.38%
202820,430-78-0.38%
202720,508-78-0.38%
202620,586-78-0.38%
202520,664-78-0.38%
202420,742-78-0.37%
202320,820-78-0.37%
202220,8982511.22%
202120,647400.19%
202020,6076483.25%
201919,9593191.62%
201819,640660.34%
201719,5742631.36%
201619,3111030.54%
201519,208540.28%
201419,154740.39%
201319,0801440.76%
201218,936600.32%
201118,876850.45%
201018,79100%
199013,6033362.53%
198013,2671,25310.43%
197012,0142,08521%
19609,9293,34550.8%
19506,5843756.04%
19406,209-1,510-19.56%
19307,719-1,904-19.79%
19209,623-1,297-11.88%
191010,9206,080125.62%
19004,8402,742130.7%
18902,098-18,254-89.69%
2024 Growth Rate
-0.37% (-78)
County Website
Adams County
County Seat
Ritzville
2020 Population
20,607
Area
1925 mi²
Density
11 people/mi²
Growth Since 2020
0.66% (135)
Founded
November 28, 1883

Population by Race

Race
Population
Percentage (of total)
White10,76152.35%
Other race5,94028.9%
Two or more races3,16115.38%
Native American4412.15%
Asian1260.61%
Native Hawaiian or Pacific Islander840.41%
Black or African American440.21%

White

Other race

Two or more races

Native American

Asian

Native Hawaiian or Pacific Islander

Black or African American

Adams County, Washington Population by Race

Adams County, Washington Population Pyramid 2024

Adams County, Washington Median Age

29

Total

28

Male

29.7

Female

Adams County, Washington Adults

There are 13,398 adults, (2,317 of whom are seniors) in Adams County, Washington.

Adams County, Washington Age Dependency

85.5

Age Dependency Ratio

20.9

Old Age Dependency Ratio

64.6

Child Dependency Ratio

Adams County, Washington Sex Ratio

Female10,04848.88%
Male10,50951.12%

Adams County, Washington Population by Age

Adams County, Washington Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All6,3043.2164.935.1
Married3,5093.7372.527.5
Non Family1,4951.1857.442.6
Female9613.8553.446.6
Male3394.9752.547.5

3.7

Average Family Size

3.21

Average Household Size

64.9%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Adams County, Washington Households and Families

Male

Female

Education Attained
Count
Percentage
9th to 12th Grade8217.29%
Associates Degree7486.64%
Bachelors Degree1,0189.04%
Graduate Degree6395.68%
High School Graduate3,52731.33%
Less Than 9th Grade2,44821.74%
Some College2,05718.27%

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

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

Adams County, Washington Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

Race
Total
High School
Bachelors
Hispanic5,9753,054284
White4,7974,4881,309
Other Race2,9171,24079
2+ Races1,255857129
Native American293960
Asian907922
Islander84840
Black38330

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

The highest rate of bachelors degrees is among white people with a rate of 27.29%.

Adams County, Washington Educational Attainment by Race

All

Male

Female

Name
Average
Male
Female
Bachelors Degree$61,010$76,250$34,063
Graduate Degree$92,198$105,858$71,346
High School Graduate$31,268$43,275$24,702
Less Than 9th Grade$26,596$28,154$20,182
Overall$34,613$42,111$28,178
Some College$41,966$53,220$34,226

$34,613

Average Earnings

$42,111

Average Male

$28,178

Average Female

Adams County, Washington Earnings by Educational Attainment

Adams County, Washington Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Adams County, Washington Language

48.87% of Adams County, Washington residents speak only English, while 51.13% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 48.94% of the population.

Adams County, Washington Language

Adams County, Washington Poverty by Race

rate

Name
Total
In Poverty
Poverty Rate
Hispanic13,2213,46926.24%
Other5,9401,58726.72%
Multiple3,16073323.2%
White6,36864710.16%
Native44115234.47%
Asian1265342.06%
Black341441.18%

20.93%

Overall Poverty Rate

19.31%

Male Poverty Rate

22.61%

Female Poverty Rate

Poverty in Adams County, Washington

The race most likely to be in poverty in Adams County, Washington is Asian, with 42.06% below the poverty level.

The race least likely to be in poverty in Adams County, Washington is White, with 10.16% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 5.27%. Among those working part-time, it was 19.44%, and for those that did not work, the poverty rate was 31.15%.

Adams County, Washington Poverty

rate

Rate
Poverty
Less Than 9th Grade27.59%
High School15.54%
Some College12.63%
Bachelors or Greater4.03%

Adams County, Washington Poverty Rate by Education

rate

Rate
Poverty
Female Unemployed56.49%
Male Unemployed33.6%
Female Employed10.81%
Male Employed8.01%

Adams County, Washington Poverty Rate by Employment Status and Sex

Adams County, Washington Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

Name
Median
Mean
Families$68,425$82,859
Households$63,105$77,207
Married Families$78,364$-999,999,999
Non Families$30,023$51,511

mean

median

Income by Household Type

Adams County, Washington Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

51.7%

Overall Marriage Rate

50.3%

Male Marriage Rate

53.2%

Female Marriage Rate

Adams County, Washington Married by Age and Sex

male

female

Adams County, Washington Marriage

The age group where males are most likely to be married is 55-64, while the female age group most likely to be married is 45-54.

Adams County, Washington Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Adams County, Washington Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

544

Number of Veterans

496

Male Veterans

48

Female Veterans

War
Veterans
Vietnam206
Second Gulf War134
First Gulf War103
Korea38
World War II0

Adams County, Washington Veterans by War

count

Age Group
Veterans
65 to 74173
75+142
18 to 3491
55 to 6470
35 to 5468

Adams County, Washington Veterans by Age

count

Name
Veterans
% of Total
White3840.051696284329563816
Hispanic1150.015003261578604044
2+ Races890.05135603000577034
Native American270.06323185011709602
Black210.5526315789473685
Other Race170.004731422209852491
Asian60.06666666666666667

Adams County, Washington Veterans by Race

Adams County, Washington Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

3.12%

Veteran Poverty Rate

36.84%

Veteran Disability Rate

Adams County, Washington Veterans by Education

LaborForceParticipation

62.3%

Labor Force Participation

58.4%

Employment Rate

6.3%

Unemployment Rate

Adams County, Washington Employment by Age

LaborForceParticipation

Adams County, Washington Employment by Race

LaborForceParticipation

Adams 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

54.43%

Born in Adams County, Washington

77.12%

Native Born

22.88%

Foreign Born

17.97%

Non Citizen

4.91%

Naturalized

Place of Birth

77.12% of Adams County, Washington residents were born in the United States, with 54.43% having been born in Washington. 17.97% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Adams County, Washington Place of Birth

Sources