Denver County, CO Population by Age

The median age in Denver County, CO is 34.8, as per 2021 ACS 5-Year Estimates. Of the total population, 16.34% were under the age of 15, 22.51% aged 15 to 29, 49.45% aged 30 to 64, 10.32% aged 65 to 84, and 1.38% were 85 years of age and older.
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Updated Sep 17, 2023

Denver County, CO population age distribution

A complete breakdown of Denver 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 40,402 5.72%
5 to 9 years 37,086 5.25%
10 to 14 years 38,003 5.38%
15 to 19 years 34,792 4.92%
20 to 24 years 42,411 6%
25 to 29 years 81,917 11.59%
30 to 34 years 81,528 11.53%
35 to 39 years 64,890 9.18%
40 to 44 years 51,373 7.27%
45 to 49 years 44,369 6.28%
50 to 54 years 38,242 5.41%
55 to 59 years 35,813 5.07%
60 to 64 years 33,289 4.71%
65 to 69 years 29,029 4.11%
70 to 74 years 22,553 3.19%
75 to 79 years 12,423 1.76%
80 to 84 years 8,923 1.26%
85 years and over 9,756 1.38%
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Denver County, CO population by age group

Key stats
192,694
Population under 25 years
279,708
Population aged 25-44
151,713
Population aged 45-64
82,684
Population aged 65+

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

The graph shows Denver 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
Denver County, CO population by age group. The largest age group was 25-29 years with a poulation of 81,917 (11.59% of the total population). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

The largest age group in Denver County, CO was for the group of age 25-29 years with a population of 81,917 (11.59%), according to the 2021 American Community Survey.

At the same time, the smallest age group in Denver County, CO was the 80-84 years with a population of 8,923 (1.26%).

Denver County, CO population by age cohort

To better understand the age distribution of Denver County, CO'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 Denver 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.
Denver County, CO 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 488,117 (69.06% 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 135,998 19.24%
18 to 64 years 488,117 69.06%
85 years and over 82,684 11.7%
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Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:

  • Denver County's population under 18 was 19.24%, compared to the 22.51% nationwide.
  • Denver County's working population (between 18 and 64) was 69.06%, compared to 61.45% nationwide.
  • Denver County's elderly or the senior population (over 65 age) was 11.70% as compared to 16.04% nationwide.

Denver County, CO population pyramid

Population pyramid for Denver County, CO 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 Denver County's population pyramid:

  • Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Denver County, CO, is 22.7.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Denver County, CO, is 16.3.
  • Total dependency ratio for Denver County, CO is 39.0.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Denver County, CO is 6.2.
The graph shows Denver 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.
Denver County, CO population pyramid i.e. Denver County population distrubution across age and gender. Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Here's the Denver County, CO's male and female population across different age groups:

Age Group Population(Male) Population(Female) Total Population
Under 5 years 20,421 19,981 40,402
5 to 9 years 18,270 18,816 37,086
10 to 14 years 19,806 18,197 38,003
15 to 19 years 17,504 17,288 34,792
20 to 24 years 20,647 21,764 42,411
25 to 29 years 40,751 41,166 81,917
30 to 34 years 42,334 39,194 81,528
35 to 39 years 33,324 31,566 64,890
40 to 44 years 27,604 23,769 51,373
45 to 49 years 23,691 20,678 44,369
50 to 54 years 20,288 17,954 38,242
55 to 59 years 18,565 17,248 35,813
60 to 64 years 15,873 17,416 33,289
65 to 69 years 13,553 15,476 29,029
70 to 74 years 10,446 12,107 22,553
75 to 79 years 5,340 7,083 12,423
80 to 84 years 3,551 5,372 8,923
85 years and over 3,797 5,959 9,756
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Things to know

What is the population of Denver County, CO under 18?

Denver County's population under the age of 18 is 135,998, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 19.24% of the total resident population of Denver County, CO.

What is the aging population in Denver County, CO?

Denver County's population aged 65 years and above was 82,684. As per the U.S. Census Bureau's American Community Survey, this population is 11.70% of the entire population.

References

Datasets

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

Key observations

The largest age group in Denver County, CO was for the group of age 25-29 years with a population of 81,917 (11.59%), according to the 2021 American Community Survey. At the same time, the smallest age group in Denver County, CO was the 80-84 years with a population of 8,923 (1.26%). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

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

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

Context

The dataset tabulates the Denver 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 Denver 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.

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

Denver County, CO 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 Denver County, CO population pyramid, which represents the Denver 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 Denver County, CO, is 22.7.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Denver County, CO, is 16.3.
  • Total dependency ratio for Denver County, CO is 39.0.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Denver County, CO is 6.2.

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