Alexander County, IL Population by Age

The median age in Alexander County, IL is 45.5, as per 2021 ACS 5-Year Estimates. Of the total population, 20.50% were under the age of 15, 14.52% aged 15 to 29, 42.51% aged 30 to 64, 20.86% aged 65 to 84, and 1.60% were 85 years of age and older.
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Updated Sep 17, 2023

Alexander County, IL population age distribution

A complete breakdown of Alexander 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 239 4.35%
5 to 9 years 404 7.36%
10 to 14 years 482 8.78%
15 to 19 years 304 5.54%
20 to 24 years 240 4.37%
25 to 29 years 253 4.61%
30 to 34 years 250 4.56%
35 to 39 years 217 3.95%
40 to 44 years 326 5.94%
45 to 49 years 291 5.3%
50 to 54 years 354 6.45%
55 to 59 years 497 9.06%
60 to 64 years 398 7.25%
65 to 69 years 467 8.51%
70 to 74 years 308 5.61%
75 to 79 years 239 4.35%
80 to 84 years 131 2.39%
85 years and over 88 1.6%
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Alexander County, IL population by age group

Key stats
1,669
Population under 25 years
1,046
Population aged 25-44
1,540
Population aged 45-64
1,233
Population aged 65+

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

The graph shows Alexander County'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
Alexander County, IL population by age group. The largest age group was 55-59 years with a poulation of 497 (9.06% of the total population). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

The largest age group in Alexander County, IL was for the group of age 55-59 years with a population of 497 (9.06%), according to the 2021 American Community Survey.

At the same time, the smallest age group in Alexander County, IL was the 85+ years with a population of 88 (1.60%).

Alexander County, IL population by age cohort

To better understand the age distribution of Alexander 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
The pie chart shows Alexander County'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.
Alexander County, 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 3,009 (54.83% 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 1,246 22.7%
18 to 64 years 3,009 54.83%
85 years and over 1,233 22.47%
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Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:

  • Alexander County's population under 18 was 22.70%, compared to the 22.51% nationwide.
  • Alexander County's working population (between 18 and 64) was 54.83%, compared to 61.45% nationwide.
  • Alexander County's elderly or the senior population (over 65 age) was 22.47% as compared to 16.04% nationwide.

Alexander County, IL population pyramid

Population pyramid for Alexander 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 Alexander County's population pyramid:

  • Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Alexander County, 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 Alexander County, IL, is 39.4.
  • Total dependency ratio for Alexander County, IL is 75.3.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Alexander County, IL is 2.5.
The graph shows Alexander County'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.
Alexander County, IL population pyramid i.e. Alexander County population distrubution across age and gender. Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Here's the Alexander County, IL's male and female population across different age groups:

Age Group Population(Male) Population(Female) Total Population
Under 5 years 134 105 239
5 to 9 years 248 156 404
10 to 14 years 191 291 482
15 to 19 years 71 233 304
20 to 24 years 161 79 240
25 to 29 years 135 118 253
30 to 34 years 162 88 250
35 to 39 years 161 56 217
40 to 44 years 90 236 326
45 to 49 years 127 164 291
50 to 54 years 172 182 354
55 to 59 years 201 296 497
60 to 64 years 243 155 398
65 to 69 years 208 259 467
70 to 74 years 174 134 308
75 to 79 years 87 152 239
80 to 84 years 51 80 131
85 years and over 36 52 88
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Things to know

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

Alexander County's population under the age of 18 is 1,246, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 22.70% of the total resident population of Alexander County, IL.

What is the aging population in Alexander County, IL?

Alexander County's population aged 65 years and above was 1,233. As per the U.S. Census Bureau's American Community Survey, this population is 22.47% of the entire population.

References

Datasets

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

Key observations

The largest age group in Alexander County, IL was for the group of age 55-59 years with a population of 497 (9.06%), according to the 2021 American Community Survey. At the same time, the smallest age group in Alexander County, IL was the 85+ years with a population of 88 (1.60%). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

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

Alexander County, IL Age Cohorts Dataset: Children, Working Adults, and Seniors in Alexander County - 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 Alexander 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 Alexander 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 $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.

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

Alexander County, 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 Alexander County, IL population pyramid, which represents the Alexander County 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 Alexander County, 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 Alexander County, IL, is 39.4.
  • Total dependency ratio for Alexander County, IL is 75.3.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Alexander County, IL is 2.5.

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