Dallas County, TX Population by Age

The median age in Dallas County, TX is 33.7, as per 2021 ACS 5-Year Estimates. Of the total population, 21.83% were under the age of 15, 22.19% aged 15 to 29, 45.19% aged 30 to 64, 9.63% aged 65 to 84, and 1.17% were 85 years of age and older.
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Updated Sep 17, 2023

Dallas County, TX population age distribution

A complete breakdown of Dallas 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 187,909 7.21%
5 to 9 years 183,336 7.04%
10 to 14 years 197,255 7.57%
15 to 19 years 179,530 6.89%
20 to 24 years 178,937 6.87%
25 to 29 years 219,476 8.43%
30 to 34 years 206,690 7.94%
35 to 39 years 185,129 7.11%
40 to 44 years 175,250 6.73%
45 to 49 years 165,498 6.35%
50 to 54 years 157,382 6.04%
55 to 59 years 152,538 5.86%
60 to 64 years 134,635 5.17%
65 to 69 years 101,738 3.91%
70 to 74 years 74,678 2.87%
75 to 79 years 45,335 1.74%
80 to 84 years 29,045 1.12%
85 years and over 30,361 1.17%
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Dallas County, TX population by age group

Key stats
926,967
Population under 25 years
786,545
Population aged 25-44
610,053
Population aged 45-64
281,157
Population aged 65+

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

The graph shows Dallas 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
Dallas County, TX population by age group. The largest age group was 25-29 years with a poulation of 219,476 (8.43% of the total population). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

The largest age group in Dallas County, TX was for the group of age 25-29 years with a population of 219,476 (8.43%), according to the 2021 American Community Survey.

At the same time, the smallest age group in Dallas County, TX was the 80-84 years with a population of 29,045 (1.12%).

Dallas County, TX population by age cohort

To better understand the age distribution of Dallas County, TX'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 Dallas 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.
Dallas County, TX 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 1,643,121 (63.08% 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 680,444 26.12%
18 to 64 years 1,643,121 63.08%
85 years and over 281,157 10.79%
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Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:

  • Dallas County's population under 18 was 26.12%, compared to the 22.51% nationwide.
  • Dallas County's working population (between 18 and 64) was 63.08%, compared to 61.45% nationwide.
  • Dallas County's elderly or the senior population (over 65 age) was 10.79% as compared to 16.04% nationwide.

Dallas County, TX population pyramid

Population pyramid for Dallas County, TX 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 Dallas County's population pyramid:

  • Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Dallas County, TX, is 32.4.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Dallas County, TX, is 16.0.
  • Total dependency ratio for Dallas County, TX is 48.4.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Dallas County, TX is 6.2.
The graph shows Dallas 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.
Dallas County, TX population pyramid i.e. Dallas County population distrubution across age and gender. Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Here's the Dallas County, TX's male and female population across different age groups:

Age Group Population(Male) Population(Female) Total Population
Under 5 years 96,028 91,881 187,909
5 to 9 years 93,328 90,008 183,336
10 to 14 years 101,121 96,134 197,255
15 to 19 years 91,310 88,220 179,530
20 to 24 years 89,748 89,189 178,937
25 to 29 years 109,141 110,335 219,476
30 to 34 years 104,181 102,509 206,690
35 to 39 years 92,392 92,737 185,129
40 to 44 years 88,284 86,966 175,250
45 to 49 years 81,496 84,002 165,498
50 to 54 years 79,097 78,285 157,382
55 to 59 years 76,547 75,991 152,538
60 to 64 years 65,085 69,550 134,635
65 to 69 years 47,949 53,789 101,738
70 to 74 years 33,045 41,633 74,678
75 to 79 years 20,118 25,217 45,335
80 to 84 years 11,244 17,801 29,045
85 years and over 10,522 19,839 30,361
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Things to know

What is the population of Dallas County, TX under 18?

Dallas County's population under the age of 18 is 680,444, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 26.12% of the total resident population of Dallas County, TX.

What is the aging population in Dallas County, TX?

Dallas County's population aged 65 years and above was 281,157. As per the U.S. Census Bureau's American Community Survey, this population is 10.79% of the entire population.

References

Datasets

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

Key observations

The largest age group in Dallas County, TX was for the group of age 25-29 years with a population of 219,476 (8.43%), according to the 2021 American Community Survey. At the same time, the smallest age group in Dallas County, TX was the 80-84 years with a population of 29,045 (1.12%). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

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

Dallas County, TX Age Cohorts Dataset: Children, Working Adults, and Seniors in Dallas 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 Dallas 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 Dallas 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.

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

Dallas County, TX 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 Dallas County, TX population pyramid, which represents the Dallas 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 Dallas County, TX, is 32.4.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Dallas County, TX, is 16.0.
  • Total dependency ratio for Dallas County, TX is 48.4.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Dallas County, TX is 6.2.

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

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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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