Download
Share
Contents
Save
Collection 5 Resources

Idaho Population by Age

The median age in Idaho is 36.8, as per 2021 ACS 5-Year Estimates. Of the total population, 20.87% were under the age of 15, 20.24% aged 15 to 29, 43.04% aged 30 to 64, 14.26% aged 65 to 84, and 1.59% were 85 years of age and older.
Neilsberg Research Avatar
By Neilsberg Research
Updated Sep 17, 2023

Idaho population age distribution

A complete breakdown of Idaho'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 114,969 6.35%
5 to 9 years 126,381 6.98%
10 to 14 years 136,714 7.55%
15 to 19 years 130,056 7.18%
20 to 24 years 118,300 6.53%
25 to 29 years 118,378 6.53%
30 to 34 years 116,925 6.45%
35 to 39 years 121,253 6.69%
40 to 44 years 111,935 6.18%
45 to 49 years 104,898 5.79%
50 to 54 years 102,927 5.68%
55 to 59 years 111,218 6.14%
60 to 64 years 110,565 6.1%
65 to 69 years 99,777 5.51%
70 to 74 years 78,242 4.32%
75 to 79 years 49,977 2.76%
80 to 84 years 30,308 1.67%
85 years and over 28,794 1.59%
Exploring Idaho's Diversity? Request Customized Data Now!

TABLE OF CONTENTS

Idaho population by age group

Key stats
626,420
Population under 25 years
468,491
Population aged 25-44
429,608
Population aged 45-64
287,098
Population aged 65+

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

The graph shows Idaho'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
Idaho population by age group. The largest age group was 10-14 years with a poulation of 136,714 (7.55% of the total population). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

The largest age group in Idaho was for the group of age 10-14 years with a population of 136,714 (7.55%), according to the 2021 American Community Survey.

At the same time, the smallest age group in Idaho was the 85+ years with a population of 28,794 (1.59%).

Idaho population by age cohort

To better understand the age distribution of Idaho'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 Idaho'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.
Idaho 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 1,065,689 (58.83% 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 458,830 25.33%
18 to 64 years 1,065,689 58.83%
85 years and over 287,098 15.85%
Exploring Idaho's Diversity? Request Customized Data Now!

Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:

  • Idaho's population under 18 was 25.33%, compared to the 22.51% nationwide.
  • Idaho's working population (between 18 and 64) was 58.83%, compared to 61.45% nationwide.
  • Idaho's elderly or the senior population (over 65 age) was 15.85% as compared to 16.04% nationwide.

Idaho population pyramid

Population pyramid for Idaho 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 Idaho's population pyramid:

  • Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Idaho, is 33.0.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Idaho, is 25.0.
  • Total dependency ratio for Idaho is 58.0.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Idaho is 4.0.
The graph shows Idaho'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.
Idaho population pyramid i.e. Idaho population distrubution across age and gender. Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Here's the Idaho's male and female population across different age groups:

Age Group Population(Male) Population(Female) Total Population
Under 5 years 58,614 56,355 114,969
5 to 9 years 65,157 61,224 126,381
10 to 14 years 69,888 66,826 136,714
15 to 19 years 66,725 63,331 130,056
20 to 24 years 61,673 56,627 118,300
25 to 29 years 60,857 57,521 118,378
30 to 34 years 58,833 58,092 116,925
35 to 39 years 60,922 60,331 121,253
40 to 44 years 57,498 54,437 111,935
45 to 49 years 53,733 51,165 104,898
50 to 54 years 52,262 50,665 102,927
55 to 59 years 55,108 56,110 111,218
60 to 64 years 54,331 56,234 110,565
65 to 69 years 48,536 51,241 99,777
70 to 74 years 38,911 39,331 78,242
75 to 79 years 23,746 26,231 49,977
80 to 84 years 14,612 15,696 30,308
85 years and over 11,123 17,671 28,794
Exploring Idaho's Diversity? Request Customized Data Now!

Things to know

What is the population of Idaho under 18?

Idaho's population under the age of 18 is 458,830, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 25.33% of the total resident population of Idaho.

What is the aging population in Idaho?

Idaho's population aged 65 years and above was 287,098. As per the U.S. Census Bureau's American Community Survey, this population is 15.85% of the entire population.

References

Datasets

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

Key observations

The largest age group in Idaho was for the group of age 10-14 years with a population of 136,714 (7.55%), according to the 2021 American Community Survey. At the same time, the smallest age group in Idaho was the 85+ years with a population of 28,794 (1.59%). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

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

Idaho Age Cohorts Dataset: Children, Working Adults, and Seniors in Idaho - 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 Idaho 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 Idaho. 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.

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

Idaho 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 Idaho population pyramid, which represents the Idaho 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 Idaho, is 33.0.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Idaho, is 25.0.
  • Total dependency ratio for Idaho is 58.0.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Idaho is 4.0.

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

Explore related topics

Idaho Demographics Idaho Population

Explore more

About the author

Neilsberg Research Avatar
Neilsberg Research
Neilsberg Research team are data scientists with expertise in processing, analysis and visualization of big data helping small businesses make right decisions.
Read more from Neilsberg Research ➔

Share

This article is for informational purposes only and is not intended to be legal or tax advice. We recommend that you consult with a qualified professional such as a lawyer or accountant before making a decision. Many of the products and services featured here are from our affiliate partners. We may receive commissions on purchases made from our chosen links. Read advertiser disclosure.
Collection 5 Resources