Illiopolis, IL Population

Overview

886

Total Population

36.8

Median age

47.18%

Female population %

112:100

Gender ratio (M:F)

10-14 years

Largest age group

67.2

Total dependency ratio

White

Largest racial group

7

Hispanic population

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

TABLE OF CONTENTS

Age

Illiopolis's population is young compared to the rest of the country:

The median age in Illiopolis is 36.8, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
Illiopolis's population under 18 was 29.12%, compared to the 22.51% nationwide.
Illiopolis's elderly or the senior population (over 65 age) was 14.22% as compared to 16.04% nationwide.
Of the total population in Illiopolis, 25.96% were under the age of 15, 13.09% aged 15 to 29, 46.73% aged 30 to 64, 12.64% aged 65 to 84, and 1.58% were 85 years of age and older.

There are 50 less females than males in Illiopolis:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 47.18% females and 52.82% males in Illiopolis, IL.
The Illiopolis, IL gender ratio is 112:100 i.e. 112 men to 100 women (1.120).
For male population, the largest age group is 10-14 years with a population of 63.
For the female population, the largest age group is 55-59 years with a population of 40.

Illiopolis's population has become increasingly diverse:

Racial distribution of Illiopolis population: 97.07% are White, 0.45% are Black or African American, 0.11% are Asian and 2.37% are multiracial.
Illiopolis's racial breakdown clearly shows that there is an absolute majority of White population in the village.
By ethnicity, 7 is Hispanic or Latino (of any race), and 879 (99.21% of the total population) is Non-Hispanic.
The largest racial group in Illiopolis is White with a population of 86 (97.07% of the total population).

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

The peak population was 924 in the year 2000
From 2000 to 2010, Illiopolis's population decreased by 32 (3.46%), as compared to the national growth of 9.63%.
From 2010 to 2020, Illiopolis's population decreased by 48 (5.38%), 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, Illiopolis's population was lowest in year 2021 at 836.