United States › Illinois › Washington CITY
Washington Illinois · 15,902 residents (2025 est.) · 8.55 sq mi
Time machine
COMPARE TO 1990 Census 2000 Census 2009 ACS 2010 ACS 2011 ACS 2012 ACS 2013 ACS 2014 ACS 2015 ACS 2016 ACS 2017 ACS 2018 ACS 2019 ACS 2020 ACS 2021 ACS 2022 ACS 2023 ACS
The short version
Washington is home to 15,919 people in Illinois. Few US cities rank higher on income. The population is up 47% since 2000. 80% of homes are owner-occupied. The foreign-born share is 1%. Home values have more than doubled since 2000, reaching $221,900.
At a glance
Wealthier
above the US median
US median: $82,259
Mid-age
median age 38.2
US median: 38.9
More educated
44% hold a bachelor's degree
US average: 36%
Stable housing
home values roughly flat, inflation adjusted
US median home: $376,019
Section 01
Population & growth from 10,841 in 2000
15,902 in 2025 (Census Bureau estimate)
1,862 / sq mi
+17%since 2009
from 1,589 / sq mi in 2009
US average: 281
from 36.8 in 2000
US average: 38.9
Population, 1990 – 2024
9K 11K 13K 15K 17K 1990 2000 2010 2020 2024 Washington Age distribution, 2024
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02
Income & economy $95,179
Unchangedinflation adjusted, since 2000
from $52,210 in 2000
US average: $82,259
from $24,231 in 2000
US average: $44,673
Households earning $100K+
from 40.3% in 2009
US average: 53.3%
from 4.1% in 2000
US average: 12.5%
from 0.384 in 2010
US average: 0.476
Workforce by industry, 2024
Public administration 5.8%
Professional, scientific, technical 2.9%
Transportation & warehousing 1.3%
Agriculture, forestry, fishing 1.1%
Arts, entertainment, food 1.1%
Education & health services 0.9%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
$221,900
+24%inflation adjusted, since 2000
from $98,200 in 2000
US average: $376,019
$1,155
+19%inflation adjusted, since 2000
from $534 in 2000
US average: $1,442
from 78.5% in 2000
19.6% rent
from 5.0% in 2009
US average: 10.0%
from 2.52 people in 2009
US average: 2.54
from 15.8% in 2009
US average: 22.9%
from 30.6% in 2009
US average: 47.4%
from 2.5 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 98%(10,620)
Hispanic / Latino 0.7%(73)
2024
White, non-Hispanic 93.7%(14,914)
Hispanic / Latino 2.7%(423)
from 11 in 2009
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Section 04 · Origins
Detailed origins & ancestry Ancestry
+ 21 more ancestry groups with data from 30.6% in 2000
US average: 35.6%
High school or higher
from 91.7% in 2000
US average: 89.6%
from 9.4% in 2000
US average: 14.0%
Section 06
Commute & transportation from 12.7 min in 2000
US average: 26.5
from 88.6% in 2009
US average: 68.9%
from 8.2% in 2009
US average: 8.5%
from 0.1% in 2009
US average: 3.2%
from 1.9% in 2009
US average: 15.0%
from 1.2% in 2009
US average: 2.4%
from 0.0% in 2009
US average: 0.4%
from 3.6% in 2009
US average: 8.3%
Section 07
Work & employment from 4.6% in 2011
US average: 5.2%
from 64.7% in 2011
US average: 63.5%
Women 20-64 in the labor force
from 73.9% in 2020
US average: 74.6%
from 9.8% in 2009
US average: 13.1%
from 38.2% in 2009
US average: 42.5%
Section 08
People & community from 1.8% in 2009
US average: 14.1%
from 9.3% in 2009
US average: 6.2%
from 9.4% in 2012
US average: 13.3%
from 5.1% in 2013
US average: 8.4%
from 84.6% in 2017
US average: 91.0%
Computer in household
from 91.9% in 2020
US average: 95.5%
from 88.7% in 2020
US average: 87.7%
from 96.4% in 2016
US average: 77.7%
from 1.7% in 2016
US average: 13.6%
Marital status
Men 15+
Never married 29.7%(1,743)
Women 15+
Never married 22.2%(1,440)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09
Health coverage from 5.1% in 2013
US average: 8.4%
from 68.1% in 2020
US average: 54.8%
Direct-purchase
from 12.5% in 2020
US average: 13.8%
from 17.1% in 2020
US average: 18.4%
from 13.6% in 2020
US average: 20.9%
VA health care
from 2.1% in 2020
US average: 2.2%
Any private
from 79.5% in 2020
US average: 67.1%
Any public
from 30.2% 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) 19.1%(133)
Gulf War (1990s) 25.7%(179)
Share of the 696 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.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Drill deeper
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Frequently asked
How many people live in Washington, Illinois? Washington, Illinois has about 15,919 residents according to the 2024 American Community Survey.
What is the median household income in Washington, Illinois? The typical household in Washington, Illinois earns about $95,179 a year. Half of households make more than that, and half make less.
Is Washington, Illinois expensive? In Washington, Illinois, the median home is worth about $221,900, and the typical rent is about $1,155 a month.
How educated are people in Washington, Illinois? About 43.7% of adults age 25 and over in Washington, Illinois hold a bachelor's degree or higher.
What is the poverty rate in Washington, Illinois? About 5.1% of people in Washington, Illinois live below the federal poverty line.
Has Washington, Illinois grown since 1990? Yes, Washington, Illinois has grown since 1990. The population has added about 5,820 residents, a change of about 58 percent over that period.
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