Clark County, Illinois Population 2018

Clark County, Illinois's estimated population is 15,767 with a growth rate of -2.00% in the past year according to the most recent United States census data. Clark County, Illinois is the 71st largest county in Illinois.

Year Population Growth Growth Rate
201715,767-322-2.00%
201616,0892411.52%
201615,848-17-0.11%
201515,865-180-1.12%
201416,045-50-0.31%
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%

Clark County, Illinois Population Growth

Population Data via

Population by Race

Race Population
White15,646
Two or More Races191
Some Other Race94
Black or African American72
Asian70
Native Hawaiian and Other Pacific Islander10
American Indian and Alaska Native6

Race Data via US Census (2016 ACS 5-Year Survey)

Clark County, Illinois Population Pyramid 2018

0%2%4%6%8% Male Population0%2%4%6%8% Female Population80757065605550454035302520151050

Data via US Census (2016 ACS 5-Year Survey): Table S0101

Clark County, Illinois Median Age

43.1


Total

41.3


Male

43.8


Female

Clark County, Illinois Adults

There are 12,437 adults, (3,009 of which are seniors) in Clark County, Illinois.

Clark County, Illinois Age Dependency

70.8

Age Dependency Ratio

32

Old Age Dependency Ratio

38.8

Child Dependency Ratio

Clark County, Illinois Sex Ratio

Female

8,249

51.27%

Male

7,840

48.73%

Clark County, Illinois Households and Families

Clark County, Illinois Renter vs Owner Occupied by Household Type

Clark County, Illinois Household Types

Type Owner Renter
Married86.6%13.4%
All74.6%25.4%
Female62.7%37.3%
Non Family61.3%38.7%
Male58%42%

74.6%

Rate of Home Ownership

Clark County, Illinois Households by Type

Type Count Average Size Owned
All6,6732.3874.6
Married3,5172.8986.6
Non Family2,1681.2161.3
Female6833.0362.7
Male3053.2758

2.85

Average Family Size

2.38

Average Household Size

7.9%

Unmarried (Opposite Sex)

0.2%

Unmarried (Same Sex)

Clark County, Illinois Households

Clark County, Illinois Education

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

Education Attained Count Percentage
Less Than 9th Grade3473.11%
9th to 12th Grade7957.11%
High School Graduate4,35638.98%
Some College2,54722.79%
Associates Degree1,28911.53%
Bachelors Degree1,22310.94%
Graduate Degree6185.53%

Clark County, Illinois Educational Attainment by Race

Name Total High School Bachelors
White10,9289,8441,797
Hispanic116935
Other Race8466
Multiple Races523520
Asian464421
Black2311
Islander1010
Native American6

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 45.65%.

Clark County, Illinois Earnings by Educational Attainment

Name Average Male Female
Overall$32,246$40,359$23,613
Less Than High School$$39,886$9,828
High School Grad$26,316$34,058$19,288
Some College$32,583$44,167$26,481
Bachelors Degree$39,722$52,955$35,471
Graduate Degree$47,045$44,821$47,159

$32,246

Average Earnings

$40,359

Average Male

$23,613

Average Female

Clark County, Illinois Language

Clark County, Illinois Language by Age

Clark County, Illinois Language

98.10% of Clark County, Illinois residents speak only English, while 1.90% speak other languages. The largest non-English language is Spanish, which is spoken by 1.24% of the population.

Clark County, Illinois Poverty

Clark County, Illinois Poverty by Race

Name Total In Poverty Poverty Rate
White15,3272,51616.42%
Hispanic2122712.74%
Multiple191189.42%
Black591525.42%

16.30%

Overall Poverty Rate

13.54%

Male Poverty Rate

18.91%

Female Poverty Rate

Poverty in Clark County, Illinois

The race most likely to be in poverty in Clark County, Illinois is Black, with 25.42% below the poverty level.

The race least likely to be in poverty in Clark County, Illinois is Multiple, with 9.42% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 3.87%. Among those working part-time, it was 22.37%, and for those that did not work, the poverty rate was 17.61%.

Clark County, Illinois Poverty Rate by Education

Name Poverty
Less Than High School25.64%
High School14.00%
Some College8.49%
Bachelors or Greater5.21%

Clark County, Illinois Poverty Rate by Employment Status and Sex

Name Poverty
Female Unemployed45.00%
Male Unemployed33.53%
Female Employed14.82%
Male Employed4.91%

Clark County, Illinois Income

Clark County, Illinois Income by Household Type

Name Median Mean
Households$48,693$61,582
Families$55,930$69,243
Married Families$62,845$
Non Families$29,971$42,012

Clark County, Illinois Marital Status

Clark County, Illinois Marital Status

Marriage Rates

55.5%

Overall Marriage Rate

58.4%

Male Marriage Rate

52.8%

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 55To64, while the female age group most likely to be married is 55To64.

Clark County, Illinois Marital Status by Race

Clark County, Illinois Veterans

Clark County, Illinois Veterans by War

1,329

Number of Veterans

1,243

Male Veterans

86

Female Veterans

Name Veterans
Vietnam406
Second Gulf War270
First Gulf War220
World War II122
Korea113

Clark County, Illinois Veterans by Age

Name Veterans
75+319
35 to 54314
65 to 74303
55 to 64232
18 to 34161

Clark County, Illinois Veterans by Race

Name Veterans % of Total
White1,28210.55%
Black2235.48%
2 or More1926.76%
Indian6100.00%
Hispanic32.17%

Clark County, Illinois Veterans by Education

8.50%

Veteran Poverty Rate

40.36%

Veteran Disability Rate

Clark County, Illinois Employment Status

Clark County, Illinois Employment by Age

63.5%

Labor Force Participation

57.9%

Employment Rate

8.9%

Unemployment Rate

Clark County, Illinois Employment by Race

Clark County, Illinois Employment by Education

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%
Data Sources
  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