United States › Idaho › Washington County COUNTY
Washington County Idaho · 11,583 residents (2025 est.) · 1,453 sq mi
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The short version
Washington County is a county of 11,142 people in Idaho. The median age is 45.0, about 6 years above the US median. Four-year degrees are less common here than nationally, at 21% of adults. Density works out to 8 people per square mile. That trails the Idaho median by roughly 31%. Owners hold 75% of the housing stock.
At a glance
Lower income
below the US median
US median: $82,259
Older
median age 45.0
US median: 38.9
Less educated
21% hold a bachelor's degree
US average: 36%
Less affordable
home values up 66%, inflation adjusted
US median home: $376,019
Section 01
Population & growth from 9,977 in 2000
11,583 in 2025 (Census Bureau estimate)
from 7 / sq mi in 2009
US average: 281
from 39.2 in 2000
US average: 38.9
Population, 1990 – 2024
8K 9K 10K 11K 11K 1990 2000 2010 2020 2024 Washington County Age distribution, 2024
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02
Income & economy $54,000
−3%inflation adjusted, since 2000
from $30,625 in 2000
US average: $82,259
from $15,464 in 2000
US average: $44,673
Households earning $100K+
from 18.7% in 2009
US average: 53.3%
from 13.3% in 2000
US average: 12.5%
from 0.443 in 2010
US average: 0.476
Workforce by industry, 2024
Agriculture, forestry, fishing 9.7%
Transportation & warehousing 3.8%
Professional, scientific, technical 3%
Arts, entertainment, food 2.4%
Education & health services 1.6%
Public administration 1.6%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
$278,100
+66%inflation adjusted, since 2000
from $91,800 in 2000
US average: $376,019
$938
+13%inflation adjusted, since 2000
from $457 in 2000
US average: $1,442
from 73.7% in 2000
25.4% rent
from 7.6% in 2009
US average: 10.0%
from 2.41 people in 2009
US average: 2.54
from 30.0% in 2009
US average: 22.9%
from 37.8% in 2009
US average: 47.4%
from 3.9 in 2009
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Our index, 0 to 100. Higher means faster recent growth in incomes, home values, and college degrees.
Section 04
Race & ethnicity 2000
White, non-Hispanic 83.1%(8,294)
Hispanic / Latino 13.8%(1,372)
2024
White, non-Hispanic 77.6%(8,648)
Hispanic / Latino 16.5%(1,843)
from 42 in 2009
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
from 20 in 2020
Our index, 0 to 100. Higher means White and non-White residents are more separated across neighborhoods.
Section 04 · Origins
Detailed origins & ancestry Ancestry
+ 20 more ancestry groups with data from 12.7% in 2000
US average: 35.6%
High school or higher
from 76.6% in 2000
US average: 89.6%
from 2.9% in 2000
US average: 14.0%
Section 06
Commute & transportation from 15.8 min in 2000
US average: 26.5
from 71.0% in 2009
US average: 68.9%
from 9.7% in 2009
US average: 8.5%
from 0.0% in 2009
US average: 3.2%
from 7.4% in 2009
US average: 15.0%
from 7.2% in 2009
US average: 2.4%
from 2.1% in 2009
US average: 0.4%
from 4.3% in 2009
US average: 8.3%
Section 07
Work & employment from 9.2% in 2011
US average: 5.2%
from 56.3% in 2011
US average: 63.5%
Women 20-64 in the labor force
from 66.3% in 2020
US average: 74.6%
from 18.2% in 2009
US average: 13.1%
from 27.6% in 2009
US average: 42.5%
Section 08
People & community from 9.7% in 2009
US average: 14.1%
from 14.7% in 2009
US average: 6.2%
from 18.6% in 2012
US average: 13.3%
from 20.1% in 2013
US average: 8.4%
from 65.6% in 2017
US average: 91.0%
Computer in household
from 87.9% in 2020
US average: 95.5%
from 85.7% in 2020
US average: 87.7%
from 85.7% in 2016
US average: 77.7%
from 13.6% in 2016
US average: 13.6%
Marital status
Men 15+
Never married 27.7%(1,243)
Women 15+
Never married 23.3%(1,073)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09
Health coverage from 20.1% in 2013
US average: 8.4%
from 41.5% in 2020
US average: 54.8%
Direct-purchase
from 20.3% in 2020
US average: 13.8%
from 27.4% in 2020
US average: 18.4%
from 15.1% in 2020
US average: 20.9%
VA health care
from 4.8% in 2020
US average: 2.2%
Any private
from 62.8% in 2020
US average: 67.1%
Any public
from 39.7% in 2020
US average: 36.7%
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans Veterans by period of service, 2024
Gulf War (2001 or later) 23.6%(172)
Gulf War (1990s) 31.1%(227)
Share of the 730 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
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Drill deeper
Places similar to Washington County Head to head
Compare Washington County to nearby counties WASHINGTON COUNTY VS
Payette County
Income $67,673 +25%
Home value $341,800 +23%
Population 27,824 +140%
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WASHINGTON COUNTY VS
Gem County
Income $64,605 +20%
Home value $428,700 +54%
Population 21,773 +88%
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WASHINGTON COUNTY VS
Adams County
Income $61,808 +14%
Home value $376,500 +35%
Population 5,013 −57%
SEE FULL COMPARISON →
WASHINGTON COUNTY VS
Baker County
Income $60,936 +13%
Home value $285,600 +3%
Population 16,658 +44%
SEE FULL COMPARISON →
Frequently asked
How many people live in Washington County, Idaho? Washington County, Idaho has about 11,142 residents according to the 2024 American Community Survey.
What is the median household income in Washington County, Idaho? The typical household in Washington County, Idaho earns about $54,000 a year. Half of households make more than that, and half make less.
Is Washington County, Idaho expensive? In Washington County, Idaho, the median home is worth about $278,100, and the typical rent is about $938 a month.
How educated are people in Washington County, Idaho? About 20.6% of adults age 25 and over in Washington County, Idaho hold a bachelor's degree or higher.
What is the poverty rate in Washington County, Idaho? About 15.3% of people in Washington County, Idaho live below the federal poverty line.
Has Washington County, Idaho grown since 1990? Yes, Washington County, Idaho has grown since 1990. The population has added about 2,592 residents, a change of about 30 percent over that period.
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