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Marshall County, IL Population by Age

The median age in Marshall County, IL is 46.2, as per 2018-2022 ACS 5 -Year Estimates. Of the total population, 17.25% were under the age of 15, 15.78% aged 15 to 29, 43.46% aged 30 to 64, 20.17% aged 65 to 84, and 3.31% were 85 years of age and older.
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By Neilsberg Research
Updated Jul 26, 2024

Marshall County, IL population age distributions

A complete breakdown of Marshall County'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 638 5.43%
5 to 9 years 611 5.2%
10 to 14 years 777 6.62%
15 to 19 years 614 5.23%
20 to 24 years 565 4.81%
25 to 29 years 674 5.74%
30 to 34 years 587 5%
35 to 39 years 679 5.78%
40 to 44 years 611 5.2%
45 to 49 years 633 5.39%
50 to 54 years 783 6.67%
55 to 59 years 845 7.2%
60 to 64 years 965 8.22%
65 to 69 years 775 6.6%
70 to 74 years 760 6.47%
75 to 79 years 532 4.53%
80 to 84 years 302 2.57%
85 years and over 389 3.31%
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Marshall County, IL population by age group

Key stats
3,205
Population under 25 years
2,551
Population aged 25-44
3,226
Population aged 45-64
2,758
Population aged 65+

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

FIGURE 1

Marshall County, IL population by age group.

The largest age group is 60 to 64 years with a population of 965 (8.22% 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 Marshall County, IL was for the group of age 60 to 64 years with a population of 965 (8.22%), according to the 2018-2022 American Community Survey.

At the same time, the smallest age group in Marshall County, IL was the 80 to 84 years with a population of 302 (2.57%).

Marshall County, IL population by age cohort

To better understand the age distribution of Marshall County, 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

Marshall County, IL population by age cohort

The largest age group was 18 to 64 years with a population of 6,550 (55.79% of the total population).

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

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

Age Group Population % of Total Population
Under 18 years 2,432 20.72%
18 to 64 years 6,550 55.79%
65 years and over 2,758 23.49%
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Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:

  • Marshall County 's population under 18 was 20.72%, compared to the 22.11% nationwide.
  • Marshall County's working population (between 18 and 64) was 55.79%, compared to 61.36% nationwide.
  • Marshall County's elderly or the senior population (over 65 age) was 23.49% as compared to 16.53% nationwide.

Marshall County, IL population pyramid

Population pyramid for Marshall County, 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 Marshall County's population pyramid:

  • Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Marshall County, IL, is 29.1.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Marshall County, IL, is 39.6.
  • Total dependency ratio for Marshall County, IL is 68.8.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Marshall County, IL is 2.5.

FIGURE 3

Marshall County, IL population pyramid

Marshall County 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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Marshall County, IL population pyramid

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

Age Group Population(Male) Population(Female) Total Population
Under 5 years 311 327 638
5 to 9 years 334 277 611
10 to 14 years 394 383 777
15 to 19 years 326 288 614
20 to 24 years 299 266 565
25 to 29 years 340 334 674
30 to 34 years 311 276 587
35 to 39 years 363 316 679
40 to 44 years 325 286 611
45 to 49 years 326 307 633
50 to 54 years 377 406 783
55 to 59 years 427 418 845
60 to 64 years 501 464 965
65 to 69 years 425 350 775
70 to 74 years 332 428 760
75 to 79 years 261 271 532
80 to 84 years 155 147 302
85 years and over 99 290 389
Exploring Marshall County's Diversity? Request Customized Data Now!

Things to know

What is the population of Marshall County, IL under 18?

Marshall County's population under the age of 18 is 2,432, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 20.72% of the total resident population of Marshall County, IL.

What is the aging population in Marshall County, IL?

Marshall County's population aged 65 years and above was 2,758. As per the U.S. Census Bureau's American Community Survey, this population is 23.49% of the entire population.

References

Datasets

Explore datasets by year of publication.
2024
Marshall County, IL Age Group Population Dataset: A Complete Breakdown of Marshall County 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 Marshall County 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 Marshall County. The dataset can be utilized to understand the population distribution of Marshall County by age. For example, using this dataset, we can identify the largest age group in Marshall County.

Key observations

The largest age group in Marshall County, IL was for the group of age 60 to 64 years years with a population of 965 (8.22%), according to the ACS 2018-2022 5-Year Estimates. At the same time, the smallest age group in Marshall County, IL was the 80 to 84 years years with a population of 302 (2.57%). 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 Marshall County is shown in this column.
  • % of Total Population: This column displays the population of each age group as a proportion of Marshall County 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 Marshall County Population by Age. You can refer the same here

Marshall County, IL Age Cohorts Dataset: Children, Working Adults, and Seniors in Marshall County - 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 Marshall County 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 Marshall County. 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 6,550 (55.79% 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 Marshall County population analysis. Total expected values are 3 groups ( Children, Working Population and Senior Population).
  • Population: The population for the age cohort in Marshall County is shown in the following column.
  • Percent of Total Population: The population as a percent of total population of the Marshall County 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 Marshall County Population by Age. You can refer the same here

Marshall County, 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 Marshall County, IL population pyramid, which represents the Marshall County 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 Marshall County, IL, is 29.1.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Marshall County, IL, is 39.6.
  • Total dependency ratio for Marshall County, IL is 68.8.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Marshall County, IL is 2.5.
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 Marshall County population analysis. Total expected values are 18 and are define above in the age groups section.
  • Population (Male): The male population in the Marshall County for the selected age group is shown in the following column.
  • Population (Female): The female population in the Marshall County for the selected age group is shown in the following column.
  • Total Population: The total population of the Marshall County 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 Marshall County 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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