Illiopolis, IL population age distribution
A complete breakdown of Illiopolis's age demographics from 0 to 85 years, distributed across 18 age groups is listed in the table below.
Age Group | Population | % of Total Population |
---|---|---|
Under 5 years | 76 | 8.58% |
5 to 9 years | 68 | 7.67% |
10 to 14 years | 86 | 9.71% |
15 to 19 years | 36 | 4.06% |
20 to 24 years | 37 | 4.18% |
25 to 29 years | 43 | 4.85% |
30 to 34 years | 57 | 6.43% |
35 to 39 years | 73 | 8.24% |
40 to 44 years | 46 | 5.19% |
45 to 49 years | 46 | 5.19% |
50 to 54 years | 48 | 5.42% |
55 to 59 years | 75 | 8.47% |
60 to 64 years | 69 | 7.79% |
65 to 69 years | 53 | 5.98% |
70 to 74 years | 19 | 2.14% |
75 to 79 years | 22 | 2.48% |
80 to 84 years | 18 | 2.03% |
85 years and over | 14 | 1.58% |
TABLE OF CONTENTS
Illiopolis, IL population by age group
Sources: U.S. Census Bureau, American Community Survey (ACS) 2021
The largest age group in Illiopolis, IL was for the group of age 10-14 years with a population of 86 (9.71%), according to the 2021 American Community Survey.
At the same time, the smallest age group in Illiopolis, IL was the 85+ years with a population of 14 (1.58%).
Illiopolis, IL population by age cohort
To better understand the age distribution of Illiopolis, IL's population, we divided it into the following 3 cohorts:
- Children : Under the age of 18 years
- Adults (working population): Between the age of 18 and 64 years
- Seniors: 65 years and above
Here's the population for each of the three cohorts.
Age Group | Population | % of Total Population |
---|---|---|
Under 18 years | 258 | 29.12% |
18 to 64 years | 502 | 56.66% |
85 years and over | 126 | 14.22% |
Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:
- Illiopolis's population under 18 was 29.12%, compared to the 22.51% nationwide.
- Illiopolis's working population (between 18 and 64) was 56.66%, compared to 61.45% nationwide.
- Illiopolis's elderly or the senior population (over 65 age) was 14.22% as compared to 16.04% nationwide.
Illiopolis, IL population pyramid
Population pyramid for Illiopolis, IL is charted below using the estimates from U.S. Census Bureau's American Community Survey 5-Year estimates. A wide base suggests population increase, narrow base indicates declining birth rates.
Key stats from our analysis of the Illiopolis's population pyramid:
- Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Illiopolis, IL, is 43.4.
- Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Illiopolis, IL, is 23.8.
- Total dependency ratio for Illiopolis, IL is 67.2.
- Potential support ratio, which is the number of youth (working age population) per elderly, for Illiopolis, IL is 4.2.
Here's the Illiopolis, IL's male and female population across different age groups:
Age Group | Population(Male) | Population(Female) | Total Population |
---|---|---|---|
Under 5 years | 42 | 34 | 76 |
5 to 9 years | 39 | 29 | 68 |
10 to 14 years | 63 | 23 | 86 |
15 to 19 years | 20 | 16 | 36 |
20 to 24 years | 0 | 37 | 37 |
25 to 29 years | 27 | 16 | 43 |
30 to 34 years | 32 | 25 | 57 |
35 to 39 years | 41 | 32 | 73 |
40 to 44 years | 28 | 18 | 46 |
45 to 49 years | 13 | 33 | 46 |
50 to 54 years | 29 | 19 | 48 |
55 to 59 years | 35 | 40 | 75 |
60 to 64 years | 40 | 29 | 69 |
65 to 69 years | 31 | 22 | 53 |
70 to 74 years | 7 | 12 | 19 |
75 to 79 years | 11 | 11 | 22 |
80 to 84 years | 4 | 14 | 18 |
85 years and over | 6 | 8 | 14 |
Things to know
What is the population of Illiopolis, IL under 18?
Illiopolis's population under the age of 18 is 258, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 29.12% of the total resident population of Illiopolis, IL.
What is the aging population in Illiopolis, IL?
Illiopolis's population aged 65 years and above was 126. As per the U.S. Census Bureau's American Community Survey, this population is 14.22% of the entire population.
References
- U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates