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Collection 5 Resources

Big Rock, IL Population by Age

The median age in Big Rock, IL is 45.9, as per 2021 ACS 5-Year Estimates. Of the total population, 21.52% were under the age of 15, 12.58% aged 15 to 29, 47.35% aged 30 to 64, 15.56% aged 65 to 84, and 2.98% were 85 years of age and older.
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By Neilsberg Research
Updated Sep 17, 2023

Big Rock, IL population age distribution

A complete breakdown of Big Rock'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 75 6.21%
5 to 9 years 89 7.37%
10 to 14 years 96 7.95%
15 to 19 years 72 5.96%
20 to 24 years 18 1.49%
25 to 29 years 62 5.13%
30 to 34 years 84 6.95%
35 to 39 years 39 3.23%
40 to 44 years 59 4.88%
45 to 49 years 78 6.46%
50 to 54 years 65 5.38%
55 to 59 years 137 11.34%
60 to 64 years 110 9.11%
65 to 69 years 42 3.48%
70 to 74 years 58 4.8%
75 to 79 years 62 5.13%
80 to 84 years 26 2.15%
85 years and over 36 2.98%
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TABLE OF CONTENTS

Big Rock, IL population by age group

Key stats
350
Population under 25 years
244
Population aged 25-44
390
Population aged 45-64
224
Population aged 65+

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

The graph shows Big Rock's population by age group, with age group on x-axis and the respective age group's percent of the total population on y-axis
Big Rock, IL population by age group. The largest age group was 55-59 years with a poulation of 137 (11.34% of the total population). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

The largest age group in Big Rock, IL was for the group of age 55-59 years with a population of 137 (11.34%), according to the 2021 American Community Survey.

At the same time, the smallest age group in Big Rock, IL was the 20-24 years with a population of 18 (1.49%).

Big Rock, IL population by age cohort

To better understand the age distribution of Big Rock, 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
The pie chart shows Big Rock's population divided into segments, with each segment representing an age cohort. The area of each segment is in the same proportion of a circle as the population of the cohort is of the total population.
Big Rock, IL population by age cohorts (Children: Under 18 years; Working population: 18-64 years; Senior population: 65 years or more). The largest age group was 18 - 64 years with a poulation of 686 (56.79% of the total population). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Here's the population for each of the three cohorts.

Age Group Population % of Total Population
Under 18 years 298 24.67%
18 to 64 years 686 56.79%
85 years and over 224 18.54%
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Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:

  • Big Rock's population under 18 was 24.67%, compared to the 22.51% nationwide.
  • Big Rock's working population (between 18 and 64) was 56.79%, compared to 61.45% nationwide.
  • Big Rock's elderly or the senior population (over 65 age) was 18.54% as compared to 16.04% nationwide.

Big Rock, IL population pyramid

Population pyramid for Big Rock, 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 Big Rock's population pyramid:

  • Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Big Rock, IL, is 35.9.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Big Rock, IL, is 30.9.
  • Total dependency ratio for Big Rock, IL is 66.9.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Big Rock, IL is 3.2.
The graph shows Big Rock's population across different age group and gender, with population on x-axis and population y-axis. The male population is plotted on the left in blue color whereas the female population is plotted on the right in pink color.
Big Rock, IL population pyramid i.e. Big Rock population distrubution across age and gender. Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Here's the Big Rock, IL's male and female population across different age groups:

Age Group Population(Male) Population(Female) Total Population
Under 5 years 44 31 75
5 to 9 years 37 52 89
10 to 14 years 37 59 96
15 to 19 years 40 32 72
20 to 24 years 12 6 18
25 to 29 years 34 28 62
30 to 34 years 32 52 84
35 to 39 years 16 23 39
40 to 44 years 34 25 59
45 to 49 years 44 34 78
50 to 54 years 35 30 65
55 to 59 years 70 67 137
60 to 64 years 57 53 110
65 to 69 years 32 10 42
70 to 74 years 28 30 58
75 to 79 years 31 31 62
80 to 84 years 13 13 26
85 years and over 11 25 36
Exploring Big Rock's Diversity? Request Customized Data Now!

Things to know

What is the population of Big Rock, IL under 18?

Big Rock's population under the age of 18 is 298, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 24.67% of the total resident population of Big Rock, IL.

What is the aging population in Big Rock, IL?

Big Rock's population aged 65 years and above was 224. As per the U.S. Census Bureau's American Community Survey, this population is 18.54% of the entire population.

References

Datasets

Explore datasets by year of publication.
2023
Big Rock, IL Age Group Population Dataset: A complete breakdown of Big Rock age demographics from 0 to 85 years, distributed across 18 age groups
Last updated September 16, 2023
ACS
Free
Neilsberg
CSV, JSON
2017-2021
CC BY 4.0
About this dataset

Context

The dataset tabulates the Big Rock population distribution across 18 age groups. It lists the population in each age group along with the percentage population relative of the total population for Big Rock. The dataset can be utilized to understand the population distribution of Big Rock by age. For example, using this dataset, we can identify the largest age group in Big Rock.

Key observations

The largest age group in Big Rock, IL was for the group of age 55-59 years with a population of 137 (11.34%), according to the 2021 American Community Survey. At the same time, the smallest age group in Big Rock, IL was the 20-24 years with a population of 18 (1.49%). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Big Rock population by age group

Content

When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Age groups:

  • Under 5 years
  • 5 to 9 years
  • 10 to 14 years
  • 15 to 19 years
  • 20 to 24 years
  • 25 to 29 years
  • 30 to 34 years
  • 35 to 39 years
  • 40 to 44 years
  • 45 to 49 years
  • 50 to 54 years
  • 55 to 59 years
  • 60 to 64 years
  • 65 to 69 years
  • 70 to 74 years
  • 75 to 79 years
  • 80 to 84 years
  • 85 years and over

Variables / Data Columns

  • Age Group: This column displays the age group in consideration
  • Population: The population for the specific age group in the Big Rock is shown in this column.
  • % of Total Population: This column displays the population of each age group as a proportion of Big Rock total population. Please note that the sum of all percentages may not equal one due to rounding of values.

Good to know

Margin of Error

Data in the dataset are based on the estimates and are subject to sampling variability and thus a margin of error. Neilsberg Research recommends using caution when presening these estimates in your research.

Custom data

If you do need custom data for any of your research project, report or presentation, you can contact our research staff at research@neilsberg.com for a feasibility of a custom tabulation on a fee-for-service basis.

Inspiration

Neilsberg Research Team curates, analyze and publishes demographics and economic data from a variety of public and proprietary sources, each of which often includes multiple surveys and programs. The large majority of Neilsberg Research aggregated datasets and insights is made available for free download at https://www.neilsberg.com/research/.

Recommended for further research

This dataset is a part of the main dataset for Big Rock Population by Age. You can refer the same here

Big Rock, IL Age Cohorts Dataset: Children, Working Adults, and Seniors in Big Rock - Population and Percentage Analysis
Last updated September 16, 2023
ACS
Free
Neilsberg
CSV, JSON
2017-2021
CC BY 4.0
About this dataset

Context

The dataset tabulates the Big Rock population by age cohorts (Children: Under 18 years; Working population: 18-64 years; Senior population: 65 years or more). It lists the population in each age cohort group along with its percentage relative to the total population of Big Rock. The dataset can be utilized to understand the population distribution across children, working population and senior population for dependency ratio, housing requirements, ageing, migration patterns etc.

Key observations

The largest age group was $b3_v1 with a poulation of $b3_v2 ($b3_v3 of the total population). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Big Rock population by age cohort

Content

When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Age cohorts:

  • Under 18 years
  • 18 to 64 years
  • 65 years and over

Variables / Data Columns

  • Age Group: This column displays the age cohort for the Big Rock population analysis. Total expected values are 3 groups ( Children, Working Population and Senior Population).
  • Population: The population for the age cohort in Big Rock is shown in the following column.
  • Percent of Total Population: The population as a percent of total population of the Big Rock is shown in the following column.

Good to know

Margin of Error

Data in the dataset are based on the estimates and are subject to sampling variability and thus a margin of error. Neilsberg Research recommends using caution when presening these estimates in your research.

Custom data

If you do need custom data for any of your research project, report or presentation, you can contact our research staff at research@neilsberg.com for a feasibility of a custom tabulation on a fee-for-service basis.

Inspiration

Neilsberg Research Team curates, analyze and publishes demographics and economic data from a variety of public and proprietary sources, each of which often includes multiple surveys and programs. The large majority of Neilsberg Research aggregated datasets and insights is made available for free download at https://www.neilsberg.com/research/.

Recommended for further research

This dataset is a part of the main dataset for Big Rock Population by Age. You can refer the same here

Big Rock, IL Population Pyramid Dataset: Age Groups, Male and Female Population, and Total Population for Demographics Analysis
Last updated September 16, 2023
ACS
Free
Neilsberg
CSV, JSON
2017-2021
CC BY 4.0
About this dataset

Context

The dataset tabulates the data for the Big Rock, IL population pyramid, which represents the Big Rock population distribution across age and gender, using estimates from the U.S. Census Bureau American Community Survey 5-Year estimates. It lists the male and female population for each age group, along with the total population for those age groups. Higher numbers at the bottom of the table suggest population growth, whereas higher numbers at the top indicate declining birth rates. Furthermore, the dataset can be utilized to understand the youth dependency ratio, old-age dependency ratio, total dependency ratio, and potential support ratio.

Key observations

  • Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Big Rock, IL, is 35.9.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Big Rock, IL, is 30.9.
  • Total dependency ratio for Big Rock, IL is 66.9.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Big Rock, IL is 3.2.

Big Rock population pyramid

Content

When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Age groups:

  • Under 5 years
  • 5 to 9 years
  • 10 to 14 years
  • 15 to 19 years
  • 20 to 24 years
  • 25 to 29 years
  • 30 to 34 years
  • 35 to 39 years
  • 40 to 44 years
  • 45 to 49 years
  • 50 to 54 years
  • 55 to 59 years
  • 60 to 64 years
  • 65 to 69 years
  • 70 to 74 years
  • 75 to 79 years
  • 80 to 84 years
  • 85 years and over

Variables / Data Columns

  • Age Group: This column displays the age group for the Big Rock population analysis. Total expected values are 18 and are define above in the age groups section.
  • Population (Male): The male population in the Big Rock for the selected age group is shown in the following column.
  • Population (Female): The female population in the Big Rock for the selected age group is shown in the following column.
  • Total Population: The total population of the Big Rock for the selected age group is shown in the following column.

Good to know

Margin of Error

Data in the dataset are based on the estimates and are subject to sampling variability and thus a margin of error. Neilsberg Research recommends using caution when presening these estimates in your research.

Custom data

If you do need custom data for any of your research project, report or presentation, you can contact our research staff at research@neilsberg.com for a feasibility of a custom tabulation on a fee-for-service basis.

Inspiration

Neilsberg Research Team curates, analyze and publishes demographics and economic data from a variety of public and proprietary sources, each of which often includes multiple surveys and programs. The large majority of Neilsberg Research aggregated datasets and insights is made available for free download at https://www.neilsberg.com/research/.

Recommended for further research

This dataset is a part of the main dataset for Big Rock Population by Age. You can refer the same here

If you're looking for datasets from another year, please feel free to contact us at research@neilsberg.com and we'll be happy to assist you further.

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Big Rock, IL Demographics Big Rock, IL Population

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Neilsberg Research
Neilsberg Research team are data scientists with expertise in processing, analysis and visualization of big data helping small businesses make right decisions.
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Collection 5 Resources