Lily Lake, IL Population by Age

The median age in Lily Lake, IL is 44.2, as per 2019-2023 ACS 5 -Year Estimates. Of the total population, 16.97% were under the age of 15, 21.44% aged 15 to 29, 42.38% aged 30 to 64, 19.06% aged 65 to 84, and 0.14% were 85 years of age and older.
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Updated Feb 22, 2025

Lily Lake, IL population age distributions

A complete breakdown of Lily 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 45 3.14%
5 to 9 years 82 5.73%
10 to 14 years 116 8.1%
15 to 19 years 129 9.01%
20 to 24 years 140 9.78%
25 to 29 years 38 2.65%
30 to 34 years 39 2.72%
35 to 39 years 82 5.73%
40 to 44 years 62 4.33%
45 to 49 years 101 7.05%
50 to 54 years 96 6.7%
55 to 59 years 114 7.96%
60 to 64 years 113 7.89%
65 to 69 years 94 6.56%
70 to 74 years 115 8.03%
75 to 79 years 36 2.51%
80 to 84 years 28 1.96%
85 years and over 2 0.14%
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Lily Lake, IL population by age group

Key stats
512
Population under 25 years
221
Population aged 25-44
424
Population aged 45-64
275
Population aged 65+

Sources: U.S. Census Bureau, American Community Survey (ACS) 2019-2023

FIGURE 1

Lily Lake, IL population by age group.

The largest age group is 20 to 24 years with a population of 140 (9.78% of the total population).

Source: U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates.

The largest age group in Lily Lake, IL was for the group of age 20 to 24 years with a population of 140 (9.78%), according to the 2019-2023 American Community Survey.

At the same time, the smallest age group in Lily Lake, IL was the 85 years and over with a population of 2 (0.14%).

Lily Lake, IL population by age cohort

To better understand the age distribution of Lily 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

FIGURE 2

Lily Lake, IL population by age cohort

The largest age group was 18 to 64 years with a population of 878 (61.31% of the total population).

Source: U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates.

Lily Lake, IL population by age cohort

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

Age Group Population % of Total Population
Under 18 years 279 19.48%
18 to 64 years 878 61.31%
65 years and over 275 19.2%
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Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:

  • Lily Lake 's population under 18 was 19.48%, compared to the 22.16% nationwide.
  • Lily Lake's working population (between 18 and 64) was 61.31%, compared to 61% nationwide.
  • Lily Lake's elderly or the senior population (over 65 age) was 19.20% as compared to 16.84% nationwide.

Lily Lake, IL population pyramid

Population pyramid for Lily 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 Lily Lake's population pyramid:

  • Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Lily Lake, IL, is 26.6.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Lily Lake, IL, is 30.1.
  • Total dependency ratio for Lily Lake, IL is 56.7.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Lily Lake, IL is 3.3.

FIGURE 3

Lily Lake, IL population pyramid

Lily Lake population distrubution across age and gender. A wide base suggests population increase, narrow base indicates declining birth rates.

Source: U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates.

Lily Lake, IL population pyramid

Here's the Lily Lake, IL's male and female population across different age groups .

Age Group Population(Male) Population(Female) Total Population
Under 5 years 9 36 45
5 to 9 years 28 54 82
10 to 14 years 60 56 116
15 to 19 years 60 69 129
20 to 24 years 87 53 140
25 to 29 years 33 5 38
30 to 34 years 20 19 39
35 to 39 years 44 38 82
40 to 44 years 30 32 62
45 to 49 years 52 49 101
50 to 54 years 47 49 96
55 to 59 years 34 80 114
60 to 64 years 75 38 113
65 to 69 years 48 46 94
70 to 74 years 74 41 115
75 to 79 years 11 25 36
80 to 84 years 24 4 28
85 years and over 0 2 2
Exploring Lily Lake's Diversity? Request Customized Data Now!

Things to know

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

Lily Lake's population under the age of 18 is 279, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 19.48% of the total resident population of Lily Lake, IL.

What is the aging population in Lily Lake, IL?

Lily Lake's population aged 65 years and above was 275. As per the U.S. Census Bureau's American Community Survey, this population is 19.20% of the entire population.

References

Datasets

Explore datasets by year of publication.
2025
Lily Lake, IL Age Group Population Dataset: A Complete Breakdown of Lily Lake Age Demographics from 0 to 85 Years and Over, Distributed Across 18 Age Groups // 2025 Edition
Last updated February 22, 2025
ACS
Free
Neilsberg
CSV, JSON
2019-2023
CC BY 4.0
About this dataset

Context

The dataset tabulates the Lily 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 Lily Lake. The dataset can be utilized to understand the population distribution of Lily Lake by age. For example, using this dataset, we can identify the largest age group in Lily Lake.

Key observations

The largest age group in Lily Lake, IL was for the group of age 20 to 24 years years with a population of 140 (9.78%), according to the ACS 2019-2023 5-Year Estimates. At the same time, the smallest age group in Lily Lake, IL was the 85 years and over years with a population of 2 (0.14%). Source: U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates

Content

When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2019-2023 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 Lily Lake is shown in this column.
  • % of Total Population: This column displays the population of each age group as a proportion of Lily 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 Lily Lake Population by Age. You can refer the same here

Lily Lake, IL Age Cohorts Dataset: Children, Working Adults, and Seniors in Lily Lake - Population and Percentage Analysis // 2025 Edition
Last updated February 22, 2025
ACS
Free
Neilsberg
CSV, JSON
2019-2023
CC BY 4.0
About this dataset

Context

The dataset tabulates the Lily 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 Lily 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 18 to 64 years with a poulation of 878 (61.31% of the total population). Source: U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates.

Content

When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2019-2023 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 Lily Lake population analysis. Total expected values are 3 groups ( Children, Working Population and Senior Population).
  • Population: The population for the age cohort in Lily Lake is shown in the following column.
  • Percent of Total Population: The population as a percent of total population of the Lily 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 Lily Lake Population by Age. You can refer the same here

Lily Lake, IL Population Pyramid Dataset: Age Groups, Male and Female Population, and Total Population for Demographics Analysis // 2025 Edition
Last updated February 22, 2025
ACS
Free
Neilsberg
CSV, JSON
2019-2023
CC BY 4.0
About this dataset

Context

The dataset tabulates the data for the Lily Lake, IL population pyramid, which represents the Lily Lake population distribution across age and gender, using estimates from the U.S. Census Bureau American Community Survey (ACS) 2019-2023 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 Lily Lake, IL, is 26.6.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Lily Lake, IL, is 30.1.
  • Total dependency ratio for Lily Lake, IL is 56.7.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Lily Lake, IL is 3.3.
Content

When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2019-2023 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 Lily Lake population analysis. Total expected values are 18 and are define above in the age groups section.
  • Population (Male): The male population in the Lily Lake for the selected age group is shown in the following column.
  • Population (Female): The female population in the Lily Lake for the selected age group is shown in the following column.
  • Total Population: The total population of the Lily 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 Lily 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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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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