Washington County, Missouri Population 2024

23,435

Washington County, Missouri's estimated 2024 population is 23,435 with a growth rate of -0.01% in the past year according to the most recent United States census data. Washington County, Missouri is the 47th largest county in Missouri. The 2010 population was 25,198 and has seen a growth of -7% since that time.

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
202923,420-3-0.01%
202823,423-3-0.01%
202723,426-3-0.01%
202623,429-3-0.01%
202523,432-3-0.01%
202423,435-3-0.01%
202323,438-3-0.01%
202223,441-3-0.01%
202123,444280.12%
202023,416-1,327-5.36%
201924,743-157-0.63%
201824,900-100-0.4%
201725,0001530.62%
201624,847520.21%
201524,795-283-1.13%
201425,078-67-0.27%
201325,145570.23%
201225,088-18-0.07%
201125,106-92-0.37%
201025,198
199020,3802,39713.33%
198017,9832,89719.2%
197015,0867405.16%
196014,346-343-2.34%
195014,689-2,803-16.02%
194017,4923,04221.05%
193014,4506474.69%
192013,8034253.18%
191013,378-885-6.2%
190014,2631,1108.44%
189013,1532571.99%
188012,8961,17710.04%
187011,7191,99620.53%
18609,72391210.35%
18508,8111,59822.15%
18407,2134296.32%
18306,7844,015145%
18202,769-20,651-88.18%
showing: 38 rows
2024 Growth Rate
-0.01% (-3)
County Website
Washington County
County Seat
2010 Population
25,198
Area
760 mi²
Density
31 people/mi²
Growth Since 2010
-7% (-1,763)
Founded
August 21, 1813

Washington County, Missouri Population 2024

Population by Race

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Race
Population
Percentage (of total)
White21,94293.05%
Two or more races1,0864.61%
Black or African American3931.67%
Other race1020.43%
Native Hawaiian or Pacific Islander350.15%
Asian220.09%
Native American
showing: 7 rows

White

Two or more races

Black or African American

Other race

Native Hawaiian or Pacific Islander

Asian

Native American

Washington County, Missouri Population by Race

Washington County, Missouri Population Pyramid 2024

Washington County, Missouri Median Age

39.8

Total

38.4

Male

41.9

Female

Washington County, Missouri Adults

There are 18,042 adults, (3,970 of whom are seniors) in Washington County, Missouri.

Washington County, Missouri Age Dependency

67.6

Age Dependency Ratio

28.2

Old Age Dependency Ratio

39.4

Child Dependency Ratio

Washington County, Missouri Sex Ratio

Female11,32048.01%
Male12,26051.99%

Washington County, Missouri Population by Age

Washington County, Missouri Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All9,0322.578.621.4
Married4,5383.0786.113.9
Non Family2,8101.272.727.3
Female8843.4562.737.3
Male8002.7774.525.5
showing: 5 rows

2.99

Average Family Size

2.5

Average Household Size

78.6%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Washington County, Missouri Households and Families

Male

Female

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Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

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

Washington County, Missouri Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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

The highest rate of bachelors degrees is among islander people with a rate of 100%.

Washington County, Missouri Educational Attainment by Race

All

Male

Female

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$35,942

Average Earnings

$47,694

Average Male

$29,386

Average Female

Washington County, Missouri Earnings by Educational Attainment

Washington County, Missouri Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Washington County, Missouri Language

98.1% of Washington County, Missouri residents speak only English, while 1.9% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 1.24% of the population.

Washington County, Missouri Language

Washington County, Missouri Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
White21,0353,96218.84%
Multiple1,06016815.85%
Hispanic3495014.33%
Other1021110.78%
Black3725.41%
showing: 5 rows

18.6%

Overall Poverty Rate

16.93%

Male Poverty Rate

20.28%

Female Poverty Rate

Poverty in Washington County, Missouri

The race most likely to be in poverty in Washington County, Missouri is White, with 18.84% below the poverty level.

The race least likely to be in poverty in Washington County, Missouri is Black, with 5.41% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 3.35%. Among those working part-time, it was 17.83%, and for those that did not work, the poverty rate was 29%.

Washington County, Missouri Poverty

rate

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Rate
Poverty
Less Than 9th Grade32.31%
High School15.33%
Some College13.59%
Bachelors or Greater2.06%
showing: 4 rows

Washington County, Missouri Poverty Rate by Education

rate

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Rate
Poverty
Female Unemployed40.68%
Male Unemployed37.37%
Male Employed6.67%
Female Employed6.05%
showing: 4 rows

Washington County, Missouri Poverty Rate by Employment Status and Sex

Washington County, Missouri Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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mean

median

Income by Household Type

Washington County, Missouri Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

52.2%

Overall Marriage Rate

50.5%

Male Marriage Rate

54.1%

Female Marriage Rate

Washington County, Missouri Married by Age and Sex

male

female

Washington County, Missouri 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.

Washington County, Missouri Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Washington County, Missouri Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

1,564

Number of Veterans

1,455

Male Veterans

109

Female Veterans

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Washington County, Missouri Veterans by War

count

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Washington County, Missouri Veterans by Age

count

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Washington County, Missouri Veterans by Race

Washington County, Missouri Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

15.54%

Veteran Poverty Rate

44.73%

Veteran Disability Rate

Washington County, Missouri Veterans by Education

LaborForceParticipation

51.2%

Labor Force Participation

49%

Employment Rate

4.4%

Unemployment Rate

Washington County, Missouri Employment by Age

LaborForceParticipation

Washington County, Missouri Employment by Race

LaborForceParticipation

Washington County, Missouri 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

82.71%

Born in Washington County, Missouri

99.08%

Native Born

0.92%

Foreign Born

0.48%

Non Citizen

0.43%

Naturalized

Place of Birth

99.08% of Washington County, Missouri residents were born in the United States, with 82.71% having been born in Missouri. 0.48% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Europe.

Washington County, Missouri Place of Birth

Sources