Washington County, Illinois Population 2024

13,449

Washington County, Illinois's estimated 2024 population is 13,449 with a growth rate of -0.64% in the past year according to the most recent United States census data. Washington County, Illinois is the 76th largest county in Illinois. The 2010 population was 14,711 and has seen a growth of -8.58% since that time.

Note: data after 2022 is projected based on recent change

38 Rows

Year
Population
Growth
Change
202913,014-87-0.66%
202813,101-87-0.66%
202713,188-87-0.66%
202613,275-87-0.65%
202513,362-87-0.65%
202413,449-87-0.64%
202313,536-87-0.64%
202213,623-17-0.12%
202113,640-83-0.6%
202013,723-203-1.46%
201913,926-84-0.6%
201814,010500.36%
201713,960-216-1.52%
201614,176-83-0.58%
201514,259-130-0.9%
201414,389-22-0.15%
201314,411-187-1.28%
201214,598240.16%
201114,574-137-0.93%
201014,71100%
199014,965-507-3.28%
198015,4721,69212.28%
197013,7802111.56%
196013,569-891-6.16%
195014,460-1,341-8.49%
194015,801-485-2.98%
193016,286-1,749-9.7%
192018,035-724-3.86%
191018,759-767-3.93%
190019,5262641.37%
189019,262-1,850-8.76%
188021,1123,51319.96%
187017,5993,86828.17%
186013,7316,77897.48%
18506,9532,14344.55%
18404,8103,135187.16%
18301,67515810.42%
18201,517-11,497-88.34%
2024 Growth Rate
-0.64% (-87)
County Website
Washington County
County Seat
Nashville
2020 Population
13,723
Area
563 mi²
Density
24 people/mi²
Growth Since 2020
-2% (-274)
Founded
January 2, 1818

Population by Race

Race
Population
Percentage (of total)
White13,24596.11%
Two or more races3502.54%
Black or African American1070.78%
Other race390.28%
Asian290.21%
Native American110.08%
Native Hawaiian or Pacific Islander00%

White

Two or more races

Black or African American

Other race

Asian

Native American

Native Hawaiian or Pacific Islander

Washington County, Illinois Population by Race

Washington County, Illinois Population Pyramid 2024

Washington County, Illinois Median Age

44

Total

43.2

Male

45.5

Female

Washington County, Illinois Adults

There are 10,872 adults, (2,860 of whom are seniors) in Washington County, Illinois.

Washington County, Illinois Age Dependency

72

Age Dependency Ratio

35.7

Old Age Dependency Ratio

36.3

Child Dependency Ratio

Washington County, Illinois Sex Ratio

Female6,76849.11%
Male7,01350.89%

Washington County, Illinois Population by Age

Washington County, Illinois Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All5,7472.3682.417.6
Married3,1632.9390.89.2
Non Family1,8361.1472.327.7
Female5232.8563.136.9
Male2253.192.47.6

2.87

Average Family Size

2.36

Average Household Size

82.4%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Washington County, Illinois Households and Families

Male

Female

Education Attained
Count
Percentage
9th to 12th Grade4424.46%
Associates Degree1,54615.61%
Bachelors Degree1,49515.09%
Graduate Degree7897.96%
High School Graduate3,25432.85%
Less Than 9th Grade2983.01%
Some College2,08321.03%

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

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

Washington County, Illinois Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

Race
Total
High School
Bachelors
White9,6038,9042,243
2+ Races13913012
Hispanic10910020
Black46296
Other Race25250
Asian24140
Native American11103

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

The highest rate of bachelors degrees is among native american people with a rate of 27.27%.

Washington County, Illinois Educational Attainment by Race

All

Male

Female

Name
Average
Male
Female
Bachelors Degree$58,875$69,375$52,569
Graduate Degree$60,441$72,308$58,452
High School Graduate$37,361$42,857$29,318
Less Than 9th Grade$20,417$44,896$16,806
Overall$46,198$51,502$40,141
Some College$45,707$55,769$37,168

$46,198

Average Earnings

$51,502

Average Male

$40,141

Average Female

Washington County, Illinois Earnings by Educational Attainment

Washington County, Illinois Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Washington County, Illinois Language

98.09% of Washington County, Illinois residents speak only English, while 1.91% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 1.05% of the population.

Washington County, Illinois Language

Washington County, Illinois Poverty by Race

rate

Name
Total
In Poverty
Poverty Rate
White13,0019907.61%
Multiple3404914.41%
Hispanic2072914.01%
Other392461.54%
Black641421.88%

7.98%

Overall Poverty Rate

6.76%

Male Poverty Rate

9.23%

Female Poverty Rate

Poverty in Washington County, Illinois

The race most likely to be in poverty in Washington County, Illinois is Other, with 61.54% below the poverty level.

The race least likely to be in poverty in Washington County, Illinois is White, with 7.61% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.06%. Among those working part-time, it was 10.2%, and for those that did not work, the poverty rate was 14.22%.

Washington County, Illinois Poverty

rate

Rate
Poverty
Less Than 9th Grade32.51%
High School7.45%
Some College5.78%
Bachelors or Greater1.14%

Washington County, Illinois Poverty Rate by Education

rate

Rate
Poverty
Female Unemployed26.9%
Male Unemployed14.07%
Female Employed2.78%
Male Employed2.54%

Washington County, Illinois Poverty Rate by Employment Status and Sex

Washington County, Illinois Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

Name
Median
Mean
Families$93,853$104,094
Households$75,111$89,669
Married Families$103,711$-999,999,999
Non Families$40,213$55,237

mean

median

Income by Household Type

Washington County, Illinois Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

56.6%

Overall Marriage Rate

55.5%

Male Marriage Rate

57.8%

Female Marriage Rate

Washington County, Illinois Married by Age and Sex

male

female

Washington County, Illinois 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, Illinois Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Washington County, Illinois Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

958

Number of Veterans

920

Male Veterans

38

Female Veterans

War
Veterans
Vietnam404
First Gulf War166
Second Gulf War143
Korea122
World War II19

Washington County, Illinois Veterans by War

count

Age Group
Veterans
75+341
65 to 74294
35 to 54190
55 to 64107
18 to 3426

Washington County, Illinois Veterans by Age

count

Name
Veterans
% of Total
White9430.08954515240717881
2+ Races90.04245283018867924
Asian60.25
Hispanic50.03816793893129771

Washington County, Illinois Veterans by Race

Washington County, Illinois Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

11.04%

Veteran Poverty Rate

29.47%

Veteran Disability Rate

Washington County, Illinois Veterans by Education

LaborForceParticipation

64.6%

Labor Force Participation

61.5%

Employment Rate

4.7%

Unemployment Rate

Washington County, Illinois Employment by Age

LaborForceParticipation

Washington County, Illinois Employment by Race

LaborForceParticipation

Washington County, Illinois 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

81.79%

Born in Washington County, Illinois

99.52%

Native Born

0.48%

Foreign Born

0.3%

Non Citizen

0.17%

Naturalized

Place of Birth

99.52% of Washington County, Illinois residents were born in the United States, with 81.79% having been born in Illinois. 0.3% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Europe.

Washington County, Illinois Place of Birth

Sources