Clark County, Illinois Population 2019

Clark County, Illinois's estimated population is 15,809 with a growth rate of -0.32% in the past year according to the most recent United States census data. Clark County, Illinois is the 72nd largest county in Illinois.

Year Population Growth Growth Rate
201815,596-213-1.35%
201715,809-51-0.32%
201615,860-9-0.06%
201515,869-177-1.10%
201416,046-49-0.30%
201316,095-163-1.00%
201216,258580.36%
201116,200-91-0.56%
201016,2913702.32%
199015,921-992-5.87%
198016,9136974.30%
197016,216-330-1.99%
196016,546-816-4.70%
195017,362-1,480-7.85%
194018,8429705.43%
193017,872-3,293-15.56%
192021,165-2,352-10.00%
191023,517-516-2.15%
190024,0332,1349.74%
189021,89950.02%
188021,8943,17516.96%
187018,7193,73224.90%
186014,9875,45557.23%
18509,5322,07927.89%
18407,4533,51389.16%
18303,9403,009323.20%
18209310.00%

How Many People Live in Clark County, Illinois?

15,809

Population by Race

Race Population
White15,443
Two or More Races243
Some Other Race93
Asian83
Black or African American52
American Indian and Alaska Native10

Clark County, Illinois Population Pyramid 2019

Clark County, Illinois Median Age

43


Total

41.1


Male

43.8


Female

Clark County, Illinois Adults

There are 12,270 adults, (2,970 of whom are seniors) in Clark County, Illinois.

Clark County, Illinois Age Dependency

71.2

Age Dependency Ratio

31.9

Old Age Dependency Ratio

39.3

Child Dependency Ratio

Clark County, Illinois Sex Ratio

Female

8,097

50.85%

Male

7,827

49.15%

Clark County, Illinois Households and Families

Clark County, Illinois Renter vs Owner Occupied by Household Type

Clark County, Illinois Household Types

Type Owner Renter
Married85.1%14.9%
All74.3%25.7%
Female63.8%36.2%
Non Family61.8%38.2%
Male58.3%41.7%

74.3%

Rate of Home Ownership

Type Count Average Size Owned
All6,8092.3174.3
Married3,6382.8185.1
Non Family2,0891.1961.8
Female7802.763.8
Male3022.8658.3

2.73

Average Family Size

2.31

Average Household Size

7.2%

Unmarried (Opposite Sex)

0.1%

Unmarried (Same Sex)

Clark County, Illinois Education

Education Attained Count Percentage
Less Than 9th Grade3092.80%
9th to 12th Grade6275.68%
High School Graduate4,24638.44%
Some College2,51822.79%
Associates Degree1,45313.15%
Bachelors Degree1,27211.51%
Graduate Degree6225.63%

Clark County, Illinois Educational Attainment by Race

Name Total High School Bachelors
White10,7789,8871,866
Hispanic1291082
Other Race8669
Multiple Races73692
Asian646226
Black123
Native American10

The highest rate of high school graduation is among asian people with a rate of 96.88%.

The highest rate of bachelors degrees is among asian people with a rate of 40.63%.

Name Average Male Female
Overall$34,820$43,203$25,189
Less Than High School$$$9,198
High School Grad$32,378$40,786$20,556
Some College$32,545$45,938$25,965
Bachelors Degree$48,696$57,500$36,912
Graduate Degree$43,472$53,438$41,161

$34,820

Average Earnings

$43,203

Average Male

$25,189

Average Female

Clark County, Illinois Language

Clark County, Illinois Language by Age

Clark County, Illinois Language

98.21% of Clark County, Illinois residents speak only English, while 1.79% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 1.16% of the population.

Clark County, Illinois Poverty

Clark County, Illinois Poverty by Race

Name Total In Poverty Poverty Rate
White15,1342,17714.38%
Multiple2432911.93%
Black401537.50%
Hispanic228114.82%

14.27%

Overall Poverty Rate

11.33%

Male Poverty Rate

17.13%

Female Poverty Rate

Poverty in Clark County, Illinois

The race most likely to be in poverty in Clark County, Illinois is Black, with 37.50% below the poverty level.

The race least likely to be in poverty in Clark County, Illinois is Hispanic, with 4.82% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 3.26%. Among those working part-time, it was 19.48%, and for those that did not work, the poverty rate was 15.77%.

Name Poverty
Less Than High School27.08%
High School12.30%
Some College7.09%
Bachelors or Greater4.58%
Name Poverty
Female Unemployed41.26%
Male Unemployed24.08%
Female Employed11.85%
Male Employed4.70%

Clark County, Illinois Income

Clark County, Illinois Income by Household Type

Name Median Mean
Households$52,068$66,736
Families$59,983$73,267
Married Families$69,742-
Non Families$31,651$48,384

Clark County, Illinois Marital Status

Clark County, Illinois Marital Status

Marriage Rates

58.0%

Overall Marriage Rate

61.2%

Male Marriage Rate

55.0%

Female Marriage Rate

Clark County, Illinois Married by Age and Sex

Clark County, Illinois Marriage

The age group where males are most likely to be married is 55-64, while the female age group most likely to be married is 45-54.

Clark County, Illinois Marital Status by Race

Clark County, Illinois Veterans

1,119

Number of Veterans

1,061

Male Veterans

58

Female Veterans

War Veterans
Vietnam341
Second Gulf War230
First Gulf War169
World War II91
Korea65

Clark County, Illinois Veterans by Race

Name Veterans % of Total
White1,0959.15%
Black1223.08%
Indian10100.00%
Hispanic32.07%
2 or More22.38%

Clark County, Illinois Veterans by Education

6.38%

Veteran Poverty Rate

35.03%

Veteran Disability Rate

Clark County, Illinois Employment Status

64.6%

Labor Force Participation

60.4%

Employment Rate

6.5%

Unemployment Rate

Population of Cities in Clark County, Illinois

City 2010 Census 2016 Estimated Growth Growth Rate
Marshall39333878-55-1.40%
Casey 27772698-79-2.84%
Martinsville11671133-34-2.91%
Westfield601576-25-4.16%
  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