Cortland, IL Population by Age

The median age in Cortland, IL is 31.4, as per 2018-2022 ACS 5 -Year Estimates. Of the total population, 21.10% were under the age of 15, 23.60% aged 15 to 29, 46.17% aged 30 to 64, 8.48% aged 65 to 84, and 0.65% were 85 years of age and older.
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Updated Jul 26, 2024

Cortland, IL population age distributions

A complete breakdown of Cortland'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 297 6.27%
5 to 9 years 290 6.13%
10 to 14 years 412 8.7%
15 to 19 years 138 2.92%
20 to 24 years 397 8.39%
25 to 29 years 582 12.29%
30 to 34 years 525 11.09%
35 to 39 years 454 9.59%
40 to 44 years 308 6.51%
45 to 49 years 93 1.96%
50 to 54 years 253 5.34%
55 to 59 years 309 6.53%
60 to 64 years 244 5.15%
65 to 69 years 116 2.45%
70 to 74 years 95 2.01%
75 to 79 years 121 2.56%
80 to 84 years 69 1.46%
85 years and over 31 0.65%
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Cortland, IL population by age group

Key stats
1,534
Population under 25 years
1,869
Population aged 25-44
899
Population aged 45-64
432
Population aged 65+

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

FIGURE 1

Cortland, IL population by age group.

The largest age group is 25 to 29 years with a population of 582 (12.29% of the total population).

Source: U.S. Census Bureau American Community Survey (ACS) 2018-2022 5-Year Estimates.

The largest age group in Cortland, IL was for the group of age 25 to 29 years with a population of 582 (12.29%), according to the 2018-2022 American Community Survey.

At the same time, the smallest age group in Cortland, IL was the 85 years and over with a population of 31 (0.65%).

Cortland, IL population by age cohort

To better understand the age distribution of Cortland, 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

Cortland, IL population by age cohort

The largest age group was 18 to 64 years with a population of 3,204 (67.68% of the total population).

Source: U.S. Census Bureau American Community Survey (ACS) 2018-2022 5-Year Estimates.

Cortland, IL population by age cohort

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

Age Group Population % of Total Population
Under 18 years 1,098 23.19%
18 to 64 years 3,204 67.68%
65 years and over 432 9.13%
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Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:

  • Cortland 's population under 18 was 23.19%, compared to the 22.11% nationwide.
  • Cortland's working population (between 18 and 64) was 67.68%, compared to 61.36% nationwide.
  • Cortland's elderly or the senior population (over 65 age) was 9.13% as compared to 16.53% nationwide.

Cortland, IL population pyramid

Population pyramid for Cortland, 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 Cortland's population pyramid:

  • Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Cortland, IL, is 30.2.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Cortland, IL, is 13.1.
  • Total dependency ratio for Cortland, IL is 43.3.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Cortland, IL is 7.6.

FIGURE 3

Cortland, IL population pyramid

Cortland 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.

Cortland, IL population pyramid

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

Age Group Population(Male) Population(Female) Total Population
Under 5 years 169 128 297
5 to 9 years 184 106 290
10 to 14 years 303 109 412
15 to 19 years 65 73 138
20 to 24 years 199 198 397
25 to 29 years 283 299 582
30 to 34 years 301 224 525
35 to 39 years 290 164 454
40 to 44 years 154 154 308
45 to 49 years 70 23 93
50 to 54 years 132 121 253
55 to 59 years 142 167 309
60 to 64 years 138 106 244
65 to 69 years 80 36 116
70 to 74 years 42 53 95
75 to 79 years 69 52 121
80 to 84 years 11 58 69
85 years and over 31 0 31
Exploring Cortland's Diversity? Request Customized Data Now!

Things to know

What is the population of Cortland, IL under 18?

Cortland's population under the age of 18 is 1,098, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 23.19% of the total resident population of Cortland, IL.

What is the aging population in Cortland, IL?

Cortland's population aged 65 years and above was 432. As per the U.S. Census Bureau's American Community Survey, this population is 9.13% of the entire population.

References

Datasets

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

Key observations

The largest age group in Cortland, IL was for the group of age 25 to 29 years years with a population of 582 (12.29%), according to the ACS 2018-2022 5-Year Estimates. At the same time, the smallest age group in Cortland, IL was the 85 years and over years with a population of 31 (0.65%). 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 Cortland is shown in this column.
  • % of Total Population: This column displays the population of each age group as a proportion of Cortland 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 Cortland Population by Age. You can refer the same here

Cortland, IL Age Cohorts Dataset: Children, Working Adults, and Seniors in Cortland - 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 Cortland 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 Cortland. 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 3,204 (67.68% 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 Cortland population analysis. Total expected values are 3 groups ( Children, Working Population and Senior Population).
  • Population: The population for the age cohort in Cortland is shown in the following column.
  • Percent of Total Population: The population as a percent of total population of the Cortland 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 Cortland Population by Age. You can refer the same here

Cortland, 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 Cortland, IL population pyramid, which represents the Cortland 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 Cortland, IL, is 30.2.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Cortland, IL, is 13.1.
  • Total dependency ratio for Cortland, IL is 43.3.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Cortland, IL is 7.6.
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 Cortland population analysis. Total expected values are 18 and are define above in the age groups section.
  • Population (Male): The male population in the Cortland for the selected age group is shown in the following column.
  • Population (Female): The female population in the Cortland for the selected age group is shown in the following column.
  • Total Population: The total population of the Cortland 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 Cortland 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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