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Eureka, IL Population by Age

The median age in Eureka, IL is 39.6, as per 2018-2022 ACS 5 -Year Estimates. Of the total population, 16.75% were under the age of 15, 24.33% aged 15 to 29, 38.89% aged 30 to 64, 14.33% aged 65 to 84, and 5.70% were 85 years of age and older.
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By Neilsberg Research
Updated Jul 26, 2024

Eureka, IL population age distributions

A complete breakdown of Eureka'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 322 5.85%
5 to 9 years 334 6.07%
10 to 14 years 266 4.83%
15 to 19 years 237 4.31%
20 to 24 years 770 13.99%
25 to 29 years 332 6.03%
30 to 34 years 226 4.11%
35 to 39 years 281 5.11%
40 to 44 years 294 5.34%
45 to 49 years 193 3.51%
50 to 54 years 400 7.27%
55 to 59 years 360 6.54%
60 to 64 years 386 7.01%
65 to 69 years 265 4.81%
70 to 74 years 124 2.25%
75 to 79 years 259 4.71%
80 to 84 years 141 2.56%
85 years and over 314 5.7%
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Eureka, IL population by age group

Key stats
1,929
Population under 25 years
1,133
Population aged 25-44
1,339
Population aged 45-64
1,103
Population aged 65+

Sources: U.S. Census Bureau, American Community Survey (ACS) 2018-2022

FIGURE 1

Eureka, IL population by age group.

The largest age group is 20 to 24 years with a population of 770 (13.99% of the total population).

Source: U.S. Census Bureau American Community Survey (ACS) 2018-2022 5-Year Estimates.
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The largest age group in Eureka, IL was for the group of age 20 to 24 years with a population of 770 (13.99%), according to the 2018-2022 American Community Survey.

At the same time, the smallest age group in Eureka, IL was the 70 to 74 years with a population of 124 (2.25%).

Eureka, IL population by age cohort

To better understand the age distribution of Eureka, 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

Eureka, IL population by age cohort

The largest age group was 18 to 64 years with a population of 3,451 (62.70% of the total population).

Source: U.S. Census Bureau American Community Survey (ACS) 2018-2022 5-Year Estimates.
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Eureka, IL population by age cohort

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

Age Group Population % of Total Population
Under 18 years 950 17.26%
18 to 64 years 3,451 62.7%
65 years and over 1,103 20.04%
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Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:

  • Eureka 's population under 18 was 17.26%, compared to the 22.11% nationwide.
  • Eureka's working population (between 18 and 64) was 62.70%, compared to 61.36% nationwide.
  • Eureka's elderly or the senior population (over 65 age) was 20.04% as compared to 16.53% nationwide.

Eureka, IL population pyramid

Population pyramid for Eureka, 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 Eureka's population pyramid:

  • Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Eureka, IL, is 26.5.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Eureka, IL, is 31.7.
  • Total dependency ratio for Eureka, IL is 58.2.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Eureka, IL is 3.2.

FIGURE 3

Eureka, IL population pyramid

Eureka 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) 2018-2022 5-Year Estimates.
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Eureka, IL population pyramid

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

Age Group Population(Male) Population(Female) Total Population
Under 5 years 120 202 322
5 to 9 years 216 118 334
10 to 14 years 101 165 266
15 to 19 years 115 122 237
20 to 24 years 278 492 770
25 to 29 years 236 96 332
30 to 34 years 183 43 226
35 to 39 years 100 181 281
40 to 44 years 85 209 294
45 to 49 years 168 25 193
50 to 54 years 136 264 400
55 to 59 years 259 101 360
60 to 64 years 129 257 386
65 to 69 years 129 136 265
70 to 74 years 68 56 124
75 to 79 years 104 155 259
80 to 84 years 38 103 141
85 years and over 61 253 314
Exploring Eureka's Diversity? Request Customized Data Now!

Things to know

What is the population of Eureka, IL under 18?

Eureka's population under the age of 18 is 950, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 17.26% of the total resident population of Eureka, IL.

What is the aging population in Eureka, IL?

Eureka's population aged 65 years and above was 1,103. As per the U.S. Census Bureau's American Community Survey, this population is 20.04% of the entire population.

References

Datasets

Explore datasets by year of publication.
2024
Eureka, IL Age Group Population Dataset: A Complete Breakdown of Eureka Age Demographics from 0 to 85 Years and Over, Distributed Across 18 Age Groups // 2024 Edition
Last updated July 24, 2024
ACS
Free
Neilsberg
CSV, JSON
2018-2022
CC BY 4.0
About this dataset

Context

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

Key observations

The largest age group in Eureka, IL was for the group of age 20 to 24 years years with a population of 770 (13.99%), according to the ACS 2018-2022 5-Year Estimates. At the same time, the smallest age group in Eureka, IL was the 70 to 74 years years with a population of 124 (2.25%). Source: U.S. Census Bureau American Community Survey (ACS) 2018-2022 5-Year Estimates

Content

When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2018-2022 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 Eureka is shown in this column.
  • % of Total Population: This column displays the population of each age group as a proportion of Eureka 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 Eureka Population by Age. You can refer the same here

Eureka, IL Age Cohorts Dataset: Children, Working Adults, and Seniors in Eureka - Population and Percentage Analysis // 2024 Edition
Last updated July 24, 2024
ACS
Free
Neilsberg
CSV, JSON
2018-2022
CC BY 4.0
About this dataset

Context

The dataset tabulates the Eureka 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 Eureka. 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 3,451 (62.70% of the total population). Source: U.S. Census Bureau American Community Survey (ACS) 2018-2022 5-Year Estimates.

Content

When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2018-2022 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 Eureka population analysis. Total expected values are 3 groups ( Children, Working Population and Senior Population).
  • Population: The population for the age cohort in Eureka is shown in the following column.
  • Percent of Total Population: The population as a percent of total population of the Eureka 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 Eureka Population by Age. You can refer the same here

Eureka, IL Population Pyramid Dataset: Age Groups, Male and Female Population, and Total Population for Demographics Analysis // 2024 Edition
Last updated July 24, 2024
ACS
Free
Neilsberg
CSV, JSON
2018-2022
CC BY 4.0
About this dataset

Context

The dataset tabulates the data for the Eureka, IL population pyramid, which represents the Eureka population distribution across age and gender, using estimates from the U.S. Census Bureau American Community Survey (ACS) 2018-2022 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 Eureka, IL, is 26.5.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Eureka, IL, is 31.7.
  • Total dependency ratio for Eureka, IL is 58.2.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Eureka, IL is 3.2.
Content

When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2018-2022 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 Eureka population analysis. Total expected values are 18 and are define above in the age groups section.
  • Population (Male): The male population in the Eureka for the selected age group is shown in the following column.
  • Population (Female): The female population in the Eureka for the selected age group is shown in the following column.
  • Total Population: The total population of the Eureka 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 Eureka 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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Eureka, IL Demographics Eureka, IL Population

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