Washington County, Idaho Population 2024

11,487

Washington County, Idaho's estimated 2024 population is 11,487 with a growth rate of 1.77% in the past year according to the most recent United States census data. Washington County, Idaho is the 29th largest county in Idaho. The 2010 population was 10,177 and has seen a growth of 12.87% since that time.

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
202912,4872001.63%
202812,2872001.65%
202712,0872001.68%
202611,8872001.71%
202511,6872001.74%
202411,4872001.77%
202311,2872001.8%
202211,0872001.84%
202110,8873283.11%
202010,5594334.28%
201910,126560.56%
201810,070150.15%
201710,055250.25%
201610,0301361.37%
20159,894-62-0.62%
20149,956400.4%
20139,916-112-1.12%
201210,028-107-1.06%
201110,135-42-0.41%
201010,177
19908,550-253-2.87%
19808,8031,17015.33%
19707,633-745-8.89%
19608,378-198-2.31%
19508,576-277-3.13%
19408,85389111.19%
19307,962-1,462-15.51%
19209,424-1,677-15.11%
191011,1014,21961.3%
19006,8823,04679.41%
18903,8362,957336.41%
1880879-11,608-92.96%
showing: 32 rows
2024 Growth Rate
1.77% (200)
County Website
Washington County
State
Idaho
County Seat
2010 Population
10,177
Area
1453 mi²
Density
8 people/mi²
Growth Since 2010
12.87% (1,310)
Founded
February 20, 1879

Washington County, Idaho Population 2024

Population by Race

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Race
Population
Percentage (of total)
White8,97384.56%
Two or more races8327.84%
Other race7146.73%
Native American340.32%
Native Hawaiian or Pacific Islander250.24%
Black or African American200.19%
Asian140.13%
showing: 7 rows

White

Two or more races

Other race

Native American

Native Hawaiian or Pacific Islander

Black or African American

Asian

Washington County, Idaho Population by Race

Washington County, Idaho Population Pyramid 2024

Washington County, Idaho Median Age

44.7

Total

42.8

Male

45.6

Female

Washington County, Idaho Adults

There are 8,217 adults, (2,739 of whom are seniors) in Washington County, Idaho.

Washington County, Idaho Age Dependency

93.7

Age Dependency Ratio

50

Old Age Dependency Ratio

43.7

Child Dependency Ratio

Washington County, Idaho Sex Ratio

Female5,34850.4%
Male5,26449.6%

Washington County, Idaho Population by Age

Washington County, Idaho Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All4,1432.5171.828.2
Married2,0313.0587.112.9
Non Family1,3261.1864.235.8
Female6653.293862
Male1213.8382.617.4
showing: 5 rows

3.01

Average Family Size

2.51

Average Household Size

71.8%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

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

Washington County, Idaho Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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

The highest rate of bachelors degrees is among asian people with a rate of 57.14%.

Washington County, Idaho Educational Attainment by Race

All

Male

Female

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$33,234

Average Earnings

$43,958

Average Male

$25,685

Average Female

Washington County, Idaho Earnings by Educational Attainment

Washington County, Idaho Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Washington County, Idaho Language

85.62% of Washington County, Idaho residents speak only English, while 14.38% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 12.86% of the population.

Washington County, Idaho Language

Washington County, Idaho Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
White8,1871,24515.21%
Hispanic1,73262135.85%
Other71326437.03%
Multiple80713416.6%
Asian14642.86%
showing: 5 rows

18.13%

Overall Poverty Rate

14.36%

Male Poverty Rate

21.85%

Female Poverty Rate

Poverty in Washington County, Idaho

The race most likely to be in poverty in Washington County, Idaho is Asian, with 42.86% below the poverty level.

The race least likely to be in poverty in Washington County, Idaho is White, with 15.21% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 7.54%. Among those working part-time, it was 18.32%, and for those that did not work, the poverty rate was 22.37%.

Washington County, Idaho Poverty

rate

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Rate
Poverty
Less Than 9th Grade35.89%
High School21.88%
Some College8.85%
Bachelors or Greater2.79%
showing: 4 rows

Washington County, Idaho Poverty Rate by Education

rate

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Rate
Poverty
Female Unemployed91.24%
Female Employed15.84%
Male Unemployed6%
Male Employed5.51%
showing: 4 rows

Washington County, Idaho Poverty Rate by Employment Status and Sex

Washington County, Idaho Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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mean

median

Income by Household Type

Washington County, Idaho Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

51.0%

Overall Marriage Rate

53.2%

Male Marriage Rate

48.7%

Female Marriage Rate

Washington County, Idaho Married by Age and Sex

male

female

Washington County, Idaho Marriage

The age group where males are most likely to be married is 45-54, while the female age group most likely to be married is 35-44.

Washington County, Idaho Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Washington County, Idaho Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

734

Number of Veterans

693

Male Veterans

41

Female Veterans

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Washington County, Idaho Veterans by War

count

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Washington County, Idaho Veterans by Age

count

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Washington County, Idaho Veterans by Race

Washington County, Idaho Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

5.67%

Veteran Poverty Rate

49.52%

Veteran Disability Rate

Washington County, Idaho Veterans by Education

LaborForceParticipation

49.4%

Labor Force Participation

47.1%

Employment Rate

4.5%

Unemployment Rate

Washington County, Idaho Employment by Age

LaborForceParticipation

Washington County, Idaho Employment by Race

LaborForceParticipation

Washington County, Idaho 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

39.79%

Born in Washington County, Idaho

93.88%

Native Born

6.12%

Foreign Born

3.31%

Non Citizen

2.81%

Naturalized

Place of Birth

93.88% of Washington County, Idaho residents were born in the United States, with 39.79% having been born in Idaho. 3.31% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Washington County, Idaho Place of Birth

Sources