Island Lake, IL Population by Age

The median age in Island Lake, IL is 39.9, as per 2021 ACS 5-Year Estimates. Of the total population, 19.25% were under the age of 15, 15.54% aged 15 to 29, 50.28% aged 30 to 64, 13.18% aged 65 to 84, and 1.75% were 85 years of age and older.
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Updated Sep 17, 2023

Island Lake, IL population age distribution

A complete breakdown of Island Lake'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 723 8.97%
5 to 9 years 430 5.34%
10 to 14 years 398 4.94%
15 to 19 years 435 5.4%
20 to 24 years 437 5.42%
25 to 29 years 380 4.72%
30 to 34 years 573 7.11%
35 to 39 years 684 8.49%
40 to 44 years 425 5.27%
45 to 49 years 649 8.06%
50 to 54 years 523 6.49%
55 to 59 years 728 9.04%
60 to 64 years 469 5.82%
65 to 69 years 516 6.4%
70 to 74 years 336 4.17%
75 to 79 years 109 1.35%
80 to 84 years 101 1.25%
85 years and over 141 1.75%
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Island Lake, IL population by age group

Key stats
2,423
Population under 25 years
2,062
Population aged 25-44
2,369
Population aged 45-64
1,203
Population aged 65+

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

The graph shows Island Lake'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
Island Lake, IL population by age group. The largest age group was 55-59 years with a poulation of 728 (9.04% of the total population). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

The largest age group in Island Lake, IL was for the group of age 55-59 years with a population of 728 (9.04%), according to the 2021 American Community Survey.

At the same time, the smallest age group in Island Lake, IL was the 80-84 years with a population of 101 (1.25%).

Island Lake, IL population by age cohort

To better understand the age distribution of Island Lake, 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 Island Lake'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.
Island Lake, 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 5,048 (62.65% 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 1,806 22.42%
18 to 64 years 5,048 62.65%
85 years and over 1,203 14.93%
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Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:

  • Island Lake's population under 18 was 22.42%, compared to the 22.51% nationwide.
  • Island Lake's working population (between 18 and 64) was 62.65%, compared to 61.45% nationwide.
  • Island Lake's elderly or the senior population (over 65 age) was 14.93% as compared to 16.04% nationwide.

Island Lake, IL population pyramid

Population pyramid for Island Lake, 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 Island Lake's population pyramid:

  • Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Island Lake, IL, is 29.2.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Island Lake, IL, is 22.7.
  • Total dependency ratio for Island Lake, IL is 51.9.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Island Lake, IL is 4.4.
The graph shows Island Lake'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.
Island Lake, IL population pyramid i.e. Island Lake population distrubution across age and gender. Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Here's the Island Lake, IL's male and female population across different age groups:

Age Group Population(Male) Population(Female) Total Population
Under 5 years 225 498 723
5 to 9 years 178 252 430
10 to 14 years 250 148 398
15 to 19 years 204 231 435
20 to 24 years 193 244 437
25 to 29 years 217 163 380
30 to 34 years 321 252 573
35 to 39 years 352 332 684
40 to 44 years 197 228 425
45 to 49 years 356 293 649
50 to 54 years 307 216 523
55 to 59 years 325 403 728
60 to 64 years 237 232 469
65 to 69 years 334 182 516
70 to 74 years 128 208 336
75 to 79 years 70 39 109
80 to 84 years 41 60 101
85 years and over 46 95 141
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Things to know

What is the population of Island Lake, IL under 18?

Island Lake's population under the age of 18 is 1,806, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 22.42% of the total resident population of Island Lake, IL.

What is the aging population in Island Lake, IL?

Island Lake's population aged 65 years and above was 1,203. As per the U.S. Census Bureau's American Community Survey, this population is 14.93% of the entire population.

References

Datasets

Explore datasets by year of publication.
2023
Island Lake, IL Age Group Population Dataset: A complete breakdown of Island Lake 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 Island Lake 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 Island Lake. The dataset can be utilized to understand the population distribution of Island Lake by age. For example, using this dataset, we can identify the largest age group in Island Lake.

Key observations

The largest age group in Island Lake, IL was for the group of age 55-59 years with a population of 728 (9.04%), according to the 2021 American Community Survey. At the same time, the smallest age group in Island Lake, IL was the 80-84 years with a population of 101 (1.25%). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Island Lake 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 Island Lake is shown in this column.
  • % of Total Population: This column displays the population of each age group as a proportion of Island Lake 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 Island Lake Population by Age. You can refer the same here

Island Lake, IL Age Cohorts Dataset: Children, Working Adults, and Seniors in Island Lake - 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 Island Lake 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 Island Lake. 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.

Island Lake 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 Island Lake population analysis. Total expected values are 3 groups ( Children, Working Population and Senior Population).
  • Population: The population for the age cohort in Island Lake is shown in the following column.
  • Percent of Total Population: The population as a percent of total population of the Island Lake 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 Island Lake Population by Age. You can refer the same here

Island Lake, 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 Island Lake, IL population pyramid, which represents the Island Lake 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 Island Lake, IL, is 29.2.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Island Lake, IL, is 22.7.
  • Total dependency ratio for Island Lake, IL is 51.9.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Island Lake, IL is 4.4.

Island Lake 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 Island Lake population analysis. Total expected values are 18 and are define above in the age groups section.
  • Population (Male): The male population in the Island Lake for the selected age group is shown in the following column.
  • Population (Female): The female population in the Island Lake for the selected age group is shown in the following column.
  • Total Population: The total population of the Island Lake 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 Island Lake 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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Population of places that contain Island Lake

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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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