Prince William County, VA Population by Age

The median age in Prince William County, VA is 35.7, as per 2021 ACS 5-Year Estimates. Of the total population, 22.40% were under the age of 15, 19.79% aged 15 to 29, 47.77% aged 30 to 64, 9.26% aged 65 to 84, and 0.79% were 85 years of age and older.
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Updated Sep 17, 2023

Prince William County, VA population age distribution

A complete breakdown of Prince William 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 33,551 7.03%
5 to 9 years 35,531 7.45%
10 to 14 years 37,800 7.92%
15 to 19 years 33,946 7.11%
20 to 24 years 30,148 6.32%
25 to 29 years 30,353 6.36%
30 to 34 years 32,454 6.8%
35 to 39 years 36,970 7.75%
40 to 44 years 35,572 7.45%
45 to 49 years 34,922 7.32%
50 to 54 years 33,363 6.99%
55 to 59 years 30,574 6.41%
60 to 64 years 24,093 5.05%
65 to 69 years 17,015 3.57%
70 to 74 years 13,908 2.91%
75 to 79 years 8,040 1.68%
80 to 84 years 5,218 1.09%
85 years and over 3,766 0.79%
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Prince William County, VA population by age group

Key stats
170,976
Population under 25 years
135,349
Population aged 25-44
122,952
Population aged 45-64
47,947
Population aged 65+

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

The graph shows Prince William 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
Prince William County, VA population by age group. The largest age group was 10-14 years with a poulation of 37,800 (7.92% of the total population). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

The largest age group in Prince William County, VA was for the group of age 10-14 years with a population of 37,800 (7.92%), according to the 2021 American Community Survey.

At the same time, the smallest age group in Prince William County, VA was the 85+ years with a population of 3,766 (0.79%).

Prince William County, VA population by age cohort

To better understand the age distribution of Prince William County, VA'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 Prince William 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.
Prince William County, VA 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 300,314 (62.93% 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 128,963 27.02%
18 to 64 years 300,314 62.93%
85 years and over 47,947 10.05%
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Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:

  • Prince William County's population under 18 was 27.02%, compared to the 22.51% nationwide.
  • Prince William County's working population (between 18 and 64) was 62.93%, compared to 61.45% nationwide.
  • Prince William County's elderly or the senior population (over 65 age) was 10.05% as compared to 16.04% nationwide.

Prince William County, VA population pyramid

Population pyramid for Prince William County, VA 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 Prince William County's population pyramid:

  • Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Prince William County, VA, is 33.2.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Prince William County, VA, is 14.9.
  • Total dependency ratio for Prince William County, VA is 48.0.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Prince William County, VA is 6.7.
The graph shows Prince William 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.
Prince William County, VA population pyramid i.e. Prince William County population distrubution across age and gender. Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Here's the Prince William County, VA's male and female population across different age groups:

Age Group Population(Male) Population(Female) Total Population
Under 5 years 17,254 16,297 33,551
5 to 9 years 18,067 17,464 35,531
10 to 14 years 19,842 17,958 37,800
15 to 19 years 17,520 16,426 33,946
20 to 24 years 15,845 14,303 30,148
25 to 29 years 15,207 15,146 30,353
30 to 34 years 16,124 16,330 32,454
35 to 39 years 18,045 18,925 36,970
40 to 44 years 18,252 17,320 35,572
45 to 49 years 17,620 17,302 34,922
50 to 54 years 16,894 16,469 33,363
55 to 59 years 15,634 14,940 30,574
60 to 64 years 11,889 12,204 24,093
65 to 69 years 8,170 8,845 17,015
70 to 74 years 6,381 7,527 13,908
75 to 79 years 3,429 4,611 8,040
80 to 84 years 2,336 2,882 5,218
85 years and over 1,447 2,319 3,766
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Things to know

What is the population of Prince William County, VA under 18?

Prince William County's population under the age of 18 is 128,963, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 27.02% of the total resident population of Prince William County, VA.

What is the aging population in Prince William County, VA?

Prince William County's population aged 65 years and above was 47,947. As per the U.S. Census Bureau's American Community Survey, this population is 10.05% of the entire population.

References

Datasets

Prince William County, VA Age Group Population Dataset: A complete breakdown of Prince William 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 Prince William 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 Prince William County. The dataset can be utilized to understand the population distribution of Prince William County by age. For example, using this dataset, we can identify the largest age group in Prince William County.

Key observations

The largest age group in Prince William County, VA was for the group of age 10-14 years with a population of 37,800 (7.92%), according to the 2021 American Community Survey. At the same time, the smallest age group in Prince William County, VA was the 85+ years with a population of 3,766 (0.79%). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

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

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

Context

The dataset tabulates the Prince William 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 Prince William 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.

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

Prince William County, VA 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 Prince William County, VA population pyramid, which represents the Prince William 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 Prince William County, VA, is 33.2.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Prince William County, VA, is 14.9.
  • Total dependency ratio for Prince William County, VA is 48.0.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Prince William County, VA is 6.7.

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

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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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