Clark County, IL Population

Overview

15,587

Total Population

41.8

Median age

50.18%

Female population %

99.3:100

Gender ratio (M:F)

55-59 years

Largest age group

62.4

Total dependency ratio

White

Largest racial group

256

Hispanic population

Sources: U.S. Census Bureau, American Community Survey (ACS) 2021

TABLE OF CONTENTS

Age

Clark County's population is old compared to the rest of the country:

The median age in Clark County is 41.8, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
Clark County's population under 18 was 23.22%, compared to the 22.51% nationwide.
Clark County's elderly or the senior population (over 65 age) was 19.52% as compared to 16.04% nationwide.
Of the total population in Clark County, 18.92% were under the age of 15, 16.84% aged 15 to 29, 44.72% aged 30 to 64, 16.51% aged 65 to 84, and 3.00% were 85 years of age and older.

There are 57 more females than males in Clark County:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 50.18% females and 49.82% males in Clark County, IL.
The Clark County, IL gender ratio is 99.3:100 i.e. 99.3 men to 100 women (0.993).
For male population, the largest age group is 55-59 years with a population of 621.
For the female population, the largest age group is 55-59 years with a population of 565.

Clark County's population has become increasingly diverse:

Racial distribution of Clark County population: 96.50% are White, 0.76% are Black or African American, 0.06% are American Indian and Alaska Native, 0.49% are Asian, 0.05% are some other race and 2.14% are multiracial.
Clark County's racial breakdown clearly shows that there is an absolute majority of White population in the county.
By ethnicity, 256 is Hispanic or Latino (of any race), and 15,331 (98.36% of the total population) is Non-Hispanic.
The largest racial group in Clark County is White with a population of 15,042 (96.50% of the total population).

Clark County's population has already reached its peak and is showing a trend of decline:

The peak population was 16,959 in the year 2000
From 2000 to 2010, Clark County's population decreased by 668 (3.94%), as compared to the national growth of 9.63%.
From 2010 to 2020, Clark County's population decreased by 868 (5.33%), according to Census Bureau's Population Estimates Program. For the same period, the rate of growth for the United States was 7.17%.
Between the year 2000 and 2022, Clark County's population was lowest in year 2022 at 15,229.