Washington County, Illinois Population 2021

Washington County, Illinois's estimated population is 13,663 with a growth rate of -0.81% 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 14,712 and has seen a growth of -7.13% since this time.

Note: 2020 and 2021 data is projected
Year Population Growth Growth Rate
202113,663-112-0.81%
202013,775-112-0.81%
201913,887-112-0.80%
201813,999360.26%
201713,963-216-1.52%
201614,179-83-0.58%
201514,262-130-0.90%
201414,392-22-0.15%
201314,414-185-1.27%
201214,599230.16%
201114,576-136-0.92%
201014,712-253-1.69%
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%
193016,286-1,749-9.70%
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%
18201,5170.00%
2021 Growth Rate
-0.81%
County Website
Founded
January 2, 1818
County Seat
2010 Population
14,712
Growth Since 2010
-7.13%
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Washington County, Illinois Population Growth

Population by Race

Race Population Percentage
White13,59496.70%
Two or More Races1871.33%
Black or African American1210.86%
Some Other Race900.64%
Asian410.29%
American Indian and Alaska Native180.13%
Native Hawaiian and Other Pacific Islander70.05%
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Washington County, Illinois Population by Race

Washington County, Illinois Population Pyramid $2021

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Washington County, Illinois Median Age

43.9


Total

42.6


Male

44.7


Female

Washington County, Illinois Adults

There are 11,020 adults, (2,796 of whom are seniors) in Washington County, Illinois.

Washington County, Illinois Age Dependency

70.9

Age Dependency Ratio

34

Old Age Dependency Ratio

36.9

Child Dependency Ratio

Washington County, Illinois Sex Ratio

Female

6,990

49.72%

Male

7,068

50.28%

Washington County, Illinois Population by Age

Washington County, Illinois Renter vs Owner Occupied by Household Type

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Washington County, Illinois Household Types

Type Owner Renter
Married88.9%11.1%
All77.5%22.5%
Male73.4%26.6%
Non Family63.5%36.5%
Female59.4%40.6%

77.5%

Rate of Home Ownership

Washington County, Illinois Households and Families

Type Count Average Size Owned
All6,0202.2977.5
Married3,3172.8588.9
Non Family1,9601.1563.5
Female5252.8459.4
Male2182.7673.4

2.8

Average Family Size

2.29

Average Household Size

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Washington County, Illinois Households by Type

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Education Attained Count Percentage
Less Than 9th Grade2762.73%
9th to 12th Grade5115.06%
High School Graduate3,37333.39%
Some College2,39423.70%
Associates Degree1,43514.21%
Bachelors Degree1,42114.07%
Graduate Degree6926.85%
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Washington County, Illinois Educational Attainment by Sex (over 25)

Washington County, Illinois Educational Attainment by Race

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Race Total High School Bachelors
White9,8289,1152,061
Hispanic1169318
Black734927
Other Race5232
Asian4019
2+ Races38384
Native American6
Islander333

The highest rate of high school graduation is among islander people with a rate of 100.00%.

The highest rate of bachelors degrees is among islander people with a rate of 100.00%.

Washington County, Illinois Educational Attainment by Race

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Name Average Male Female
Overall$40,696$48,264$32,310
Less Than 9th Grade$31,307$36,964$13,056
High School Graduate$38,630$44,375$23,992
Some College$40,038$48,250$32,477
Bachelors Degree$42,585$57,102$37,194
Graduate Degree$51,098$62,670$47,708

$40,696

Average Earnings

$48,264

Average Male

$32,310

Average Female

Washington County, Illinois Earnings by Educational Attainment

Washington County, Illinois Language by Age

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Washington County, Illinois Language

98.06% of Washington County, Illinois residents speak only English, while 1.94% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 0.86% of the population.

Washington County, Illinois Language

Washington County, Illinois Poverty by Race

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Name Total In Poverty Poverty Rate
White13,3498436.32%
Hispanic1868043.01%
Other908088.89%
Multiple1702414.12%
Native1818100.00%
Black671522.39%

7.09%

Overall Poverty Rate

5.86%

Male Poverty Rate

8.32%

Female Poverty Rate

Poverty in Washington County, Illinois

The race most likely to be in poverty in Washington County, Illinois is Native, with 100.00% below the poverty level.

The race least likely to be in poverty in Washington County, Illinois is White, with 6.32% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.56%. Among those working part-time, it was 9.71%, and for those that did not work, the poverty rate was 12.20%.

Washington County, Illinois Poverty

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Name Poverty
Less Than 9th Grade19.51%
High School7.07%
Some College5.69%
Bachelors or Greater0.86%

Washington County, Illinois Poverty Rate by Education

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Rate Poverty
Female Unemployed20.83%
Male Unemployed17.49%
Female Employed5.59%
Male Employed2.43%

Washington County, Illinois Poverty Rate by Employment Status and Sex

Washington County, Illinois Income by Household Type

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Name Median Mean
Households$61,763$75,768
Families$78,619$89,089
Married Families$86,875-
Non Families$34,649$45,458
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Income by Household Type

Washington County, Illinois Marital Status

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Marriage Rates

58.6%

Overall Marriage Rate

59.0%

Male Marriage Rate

58.2%

Female Marriage Rate

Washington County, Illinois Married by Age and Sex

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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 55-64.

Washington County, Illinois Marital Status by Race

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Washington County, Illinois Marital Status

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997

Number of Veterans

942

Male Veterans

55

Female Veterans

War Veterans
Vietnam400
First Gulf War211
Second Gulf War156
Korea109
World War II13

Washington County, Illinois Veterans by War

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Age Group Veterans
65 to 74295
75+268
35 to 54243
55 to 64148
18 to 3443

Washington County, Illinois Veterans by Age

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Name Veterans % of Total
White9959.22%
Hispanic86.78%
Other Race23.85%

Washington County, Illinois Veterans by Race

Washington County, Illinois Veterans by Education

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4.47%

Veteran Poverty Rate

25.58%

Veteran Disability Rate

Washington County, Illinois Veterans by Education

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65.6%

Labor Force Participation

62.5%

Employment Rate

4.7%

Unemployment Rate

Washington County, Illinois Employment by Age

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Washington County, Illinois Employment by Race

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Washington County, Illinois Employment by Education

Origin of Non-Citizens

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Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

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78.71%

Born in Washington County, Illinois

99.12%

Native Born

0.88%

Foreign Born

0.32%

Non Citizen

0.56%

Naturalized

Place of Birth

99.12% of Washington County, Illinois residents were born in the United States, with 78.71% having been born in Illinois. 0.32% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Washington County, Illinois Place of Birth

  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990

Sources