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Pierce County, WA Population by Age

The median age in Pierce County, WA is 36.4, as per 2021 ACS 5-Year Estimates. Of the total population, 19.71% were under the age of 15, 20.56% aged 15 to 29, 45.97% aged 30 to 64, 12.31% aged 65 to 84, and 1.45% were 85 years of age and older.
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By Neilsberg Research
Updated Sep 17, 2023

Pierce County, WA population age distribution

A complete breakdown of Pierce 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 58,733 6.45%
5 to 9 years 60,932 6.69%
10 to 14 years 59,755 6.56%
15 to 19 years 55,112 6.05%
20 to 24 years 60,565 6.65%
25 to 29 years 71,505 7.86%
30 to 34 years 69,706 7.66%
35 to 39 years 64,424 7.08%
40 to 44 years 60,137 6.61%
45 to 49 years 55,426 6.09%
50 to 54 years 56,106 6.16%
55 to 59 years 56,005 6.15%
60 to 64 years 56,636 6.22%
65 to 69 years 44,255 4.86%
70 to 74 years 33,713 3.7%
75 to 79 years 20,609 2.26%
80 to 84 years 13,440 1.48%
85 years and over 13,166 1.45%
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TABLE OF CONTENTS

Pierce County, WA population by age group

Key stats
295,097
Population under 25 years
265,772
Population aged 25-44
224,173
Population aged 45-64
125,183
Population aged 65+

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

The graph shows Pierce 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
Pierce County, WA population by age group. The largest age group was 25-29 years with a poulation of 71,505 (7.86% of the total population). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

The largest age group in Pierce County, WA was for the group of age 25-29 years with a population of 71,505 (7.86%), according to the 2021 American Community Survey.

At the same time, the smallest age group in Pierce County, WA was the 85+ years with a population of 13,166 (1.45%).

Pierce County, WA population by age cohort

To better understand the age distribution of Pierce 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 Pierce 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.
Pierce 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 571,324 (62.77% 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 213,718 23.48%
18 to 64 years 571,324 62.77%
85 years and over 125,183 13.75%
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Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:

  • Pierce County's population under 18 was 23.48%, compared to the 22.51% nationwide.
  • Pierce County's working population (between 18 and 64) was 62.77%, compared to 61.45% nationwide.
  • Pierce County's elderly or the senior population (over 65 age) was 13.75% as compared to 16.04% nationwide.

Pierce County, WA population pyramid

Population pyramid for Pierce 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 Pierce County's population pyramid:

  • Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Pierce County, WA, is 29.6.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Pierce County, WA, is 20.7.
  • Total dependency ratio for Pierce County, WA is 50.3.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Pierce County, WA is 4.8.
The graph shows Pierce 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.
Pierce County, WA population pyramid i.e. Pierce County population distrubution across age and gender. Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

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

Age Group Population(Male) Population(Female) Total Population
Under 5 years 30,157 28,576 58,733
5 to 9 years 31,438 29,494 60,932
10 to 14 years 30,447 29,308 59,755
15 to 19 years 28,466 26,646 55,112
20 to 24 years 33,082 27,483 60,565
25 to 29 years 37,259 34,246 71,505
30 to 34 years 35,190 34,516 69,706
35 to 39 years 31,844 32,580 64,424
40 to 44 years 30,630 29,507 60,137
45 to 49 years 27,924 27,502 55,426
50 to 54 years 28,038 28,068 56,106
55 to 59 years 27,428 28,577 56,005
60 to 64 years 28,095 28,541 56,636
65 to 69 years 21,121 23,134 44,255
70 to 74 years 15,681 18,032 33,713
75 to 79 years 9,079 11,530 20,609
80 to 84 years 5,751 7,689 13,440
85 years and over 4,757 8,409 13,166
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Things to know

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

Pierce County's population under the age of 18 is 213,718, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 23.48% of the total resident population of Pierce County, WA.

What is the aging population in Pierce County, WA?

Pierce County's population aged 65 years and above was 125,183. As per the U.S. Census Bureau's American Community Survey, this population is 13.75% of the entire population.

References

Datasets

Pierce County, WA Age Group Population Dataset: A complete breakdown of Pierce County age demographics from 0 to 85 years, distributed across 18 age groups
ACS
Free
Neilsberg
CSV, JSON
2017-2021
CC BY 4.0
About this dataset

Context

The dataset tabulates the Pierce 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 Pierce County. The dataset can be utilized to understand the population distribution of Pierce County by age. For example, using this dataset, we can identify the largest age group in Pierce County.

Key observations

The largest age group in Pierce County, WA was for the group of age 25-29 years with a population of 71,505 (7.86%), according to the 2021 American Community Survey. At the same time, the smallest age group in Pierce County, WA was the 85+ years with a population of 13,166 (1.45%). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

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

Pierce County, WA Age Cohorts Dataset: Children, Working Adults, and Seniors in Pierce County - Population and Percentage Analysis
ACS
Free
Neilsberg
CSV, JSON
2017-2021
CC BY 4.0
About this dataset

Context

The dataset tabulates the Pierce 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 Pierce 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.

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

Pierce County, WA Population Pyramid Dataset: Age Groups, Male and Female Population, and Total Population for Demographics Analysis
ACS
Free
Neilsberg
CSV, JSON
2017-2021
CC BY 4.0
About this dataset

Context

The dataset tabulates the data for the Pierce County, WA population pyramid, which represents the Pierce 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 Pierce County, WA, is 29.6.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Pierce County, WA, is 20.7.
  • Total dependency ratio for Pierce County, WA is 50.3.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Pierce County, WA is 4.8.

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

Explore related topics

Pierce County, WA Demographics Pierce 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