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Spokane County, WA Population by Age

The median age in Spokane County, WA is 37.9, as per 2021 ACS 5-Year Estimates. Of the total population, 18.39% were under the age of 15, 20.53% aged 15 to 29, 44.90% aged 30 to 64, 14.37% aged 65 to 84, and 1.81% were 85 years of age and older.
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By Neilsberg Research
Updated Sep 17, 2023

Spokane County, WA population age distribution

A complete breakdown of Spokane 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 31,155 5.86%
5 to 9 years 33,104 6.23%
10 to 14 years 33,477 6.3%
15 to 19 years 33,952 6.39%
20 to 24 years 34,806 6.55%
25 to 29 years 40,347 7.59%
30 to 34 years 38,909 7.32%
35 to 39 years 35,320 6.65%
40 to 44 years 32,529 6.12%
45 to 49 years 31,318 5.89%
50 to 54 years 31,597 5.95%
55 to 59 years 33,059 6.22%
60 to 64 years 35,906 6.76%
65 to 69 years 27,796 5.23%
70 to 74 years 25,546 4.81%
75 to 79 years 13,458 2.53%
80 to 84 years 9,560 1.8%
85 years and over 9,638 1.81%
Exploring Spokane County's Diversity? Request Customized Data Now!

TABLE OF CONTENTS

Spokane County, WA population by age group

Key stats
166,494
Population under 25 years
147,105
Population aged 25-44
131,880
Population aged 45-64
85,998
Population aged 65+

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

The graph shows Spokane 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
Spokane County, WA population by age group. The largest age group was 25-29 years with a poulation of 40,347 (7.59% of the total population). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

The largest age group in Spokane County, WA was for the group of age 25-29 years with a population of 40,347 (7.59%), according to the 2021 American Community Survey.

At the same time, the smallest age group in Spokane County, WA was the 80-84 years with a population of 9,560 (1.80%).

Spokane County, WA population by age cohort

To better understand the age distribution of Spokane County, WA'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 Spokane 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.
Spokane County, WA 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 327,777 (61.67% 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 117,702 22.15%
18 to 64 years 327,777 61.67%
85 years and over 85,998 16.18%
Exploring Spokane County's Diversity? Request Customized Data Now!

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

  • Spokane County's population under 18 was 22.15%, compared to the 22.51% nationwide.
  • Spokane County's working population (between 18 and 64) was 61.67%, compared to 61.45% nationwide.
  • Spokane County's elderly or the senior population (over 65 age) was 16.18% as compared to 16.04% nationwide.

Spokane County, WA population pyramid

Population pyramid for Spokane County, WA 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 Spokane County's population pyramid:

  • Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Spokane County, WA, is 28.1.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Spokane County, WA, is 24.7.
  • Total dependency ratio for Spokane County, WA is 52.8.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Spokane County, WA is 4.0.
The graph shows Spokane 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.
Spokane County, WA population pyramid i.e. Spokane County population distrubution across age and gender. Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Here's the Spokane County, WA's male and female population across different age groups:

Age Group Population(Male) Population(Female) Total Population
Under 5 years 15,922 15,233 31,155
5 to 9 years 17,137 15,967 33,104
10 to 14 years 17,117 16,360 33,477
15 to 19 years 17,440 16,512 33,952
20 to 24 years 17,820 16,986 34,806
25 to 29 years 20,734 19,613 40,347
30 to 34 years 19,799 19,110 38,909
35 to 39 years 17,149 18,171 35,320
40 to 44 years 17,385 15,144 32,529
45 to 49 years 15,954 15,364 31,318
50 to 54 years 15,716 15,881 31,597
55 to 59 years 15,796 17,263 33,059
60 to 64 years 17,809 18,097 35,906
65 to 69 years 13,384 14,412 27,796
70 to 74 years 12,035 13,511 25,546
75 to 79 years 6,173 7,285 13,458
80 to 84 years 4,333 5,227 9,560
85 years and over 3,382 6,256 9,638
Exploring Spokane County's Diversity? Request Customized Data Now!

Things to know

What is the population of Spokane County, WA under 18?

Spokane County's population under the age of 18 is 117,702, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 22.15% of the total resident population of Spokane County, WA.

What is the aging population in Spokane County, WA?

Spokane County's population aged 65 years and above was 85,998. As per the U.S. Census Bureau's American Community Survey, this population is 16.18% of the entire population.

References

Datasets

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

Key observations

The largest age group in Spokane County, WA was for the group of age 25-29 years with a population of 40,347 (7.59%), according to the 2021 American Community Survey. At the same time, the smallest age group in Spokane County, WA was the 80-84 years with a population of 9,560 (1.80%). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

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

Spokane County, WA Age Cohorts Dataset: Children, Working Adults, and Seniors in Spokane 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 Spokane 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 Spokane 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.

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

Spokane County, WA 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 Spokane County, WA population pyramid, which represents the Spokane 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 Spokane County, WA, is 28.1.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Spokane County, WA, is 24.7.
  • Total dependency ratio for Spokane County, WA is 52.8.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Spokane County, WA is 4.0.

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

Explore related topics

Spokane County, WA Demographics Spokane County, WA Population

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About the author

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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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Collection 5 Resources