Collin County, TX Population by Age

The median age in Collin County, TX is 37.2, as per 2021 ACS 5-Year Estimates. Of the total population, 21.07% were under the age of 15, 18.91% aged 15 to 29, 49.07% aged 30 to 64, 10.00% aged 65 to 84, and 0.95% were 85 years of age and older.
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Updated Sep 17, 2023

Collin County, TX population age distribution

A complete breakdown of Collin 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 62,594 6.02%
5 to 9 years 74,754 7.19%
10 to 14 years 81,749 7.86%
15 to 19 years 75,576 7.27%
20 to 24 years 59,435 5.72%
25 to 29 years 61,667 5.93%
30 to 34 years 70,151 6.75%
35 to 39 years 80,666 7.76%
40 to 44 years 85,067 8.18%
45 to 49 years 83,319 8.01%
50 to 54 years 73,526 7.07%
55 to 59 years 65,452 6.29%
60 to 64 years 52,032 5%
65 to 69 years 40,580 3.9%
70 to 74 years 31,700 3.05%
75 to 79 years 20,107 1.93%
80 to 84 years 11,609 1.12%
85 years and over 9,828 0.95%
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Collin County, TX population by age group

Key stats
354,108
Population under 25 years
297,551
Population aged 25-44
274,329
Population aged 45-64
113,824
Population aged 65+

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

The graph shows Collin 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
Collin County, TX population by age group. The largest age group was 40-44 years with a poulation of 85,067 (8.18% of the total population). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

The largest age group in Collin County, TX was for the group of age 40-44 years with a population of 85,067 (8.18%), according to the 2021 American Community Survey.

At the same time, the smallest age group in Collin County, TX was the 85+ years with a population of 9,828 (0.95%).

Collin County, TX population by age cohort

To better understand the age distribution of Collin 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 Collin 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.
Collin 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 657,090 (63.19% 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 268,898 25.86%
18 to 64 years 657,090 63.19%
85 years and over 113,824 10.95%
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Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:

  • Collin County's population under 18 was 25.86%, compared to the 22.51% nationwide.
  • Collin County's working population (between 18 and 64) was 63.19%, compared to 61.45% nationwide.
  • Collin County's elderly or the senior population (over 65 age) was 10.95% as compared to 16.04% nationwide.

Collin County, TX population pyramid

Population pyramid for Collin 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 Collin County's population pyramid:

  • Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Collin County, TX, is 31.0.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Collin County, TX, is 16.1.
  • Total dependency ratio for Collin County, TX is 47.1.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Collin County, TX is 6.2.
The graph shows Collin 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.
Collin County, TX population pyramid i.e. Collin County population distrubution across age and gender. Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

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

Age Group Population(Male) Population(Female) Total Population
Under 5 years 31,917 30,677 62,594
5 to 9 years 38,103 36,651 74,754
10 to 14 years 41,657 40,092 81,749
15 to 19 years 38,980 36,596 75,576
20 to 24 years 30,081 29,354 59,435
25 to 29 years 30,807 30,860 61,667
30 to 34 years 34,113 36,038 70,151
35 to 39 years 38,742 41,924 80,666
40 to 44 years 42,271 42,796 85,067
45 to 49 years 42,002 41,317 83,319
50 to 54 years 37,101 36,425 73,526
55 to 59 years 32,969 32,483 65,452
60 to 64 years 25,767 26,265 52,032
65 to 69 years 18,247 22,333 40,580
70 to 74 years 14,914 16,786 31,700
75 to 79 years 9,127 10,980 20,107
80 to 84 years 4,883 6,726 11,609
85 years and over 3,609 6,219 9,828
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Things to know

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

Collin County's population under the age of 18 is 268,898, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 25.86% of the total resident population of Collin County, TX.

What is the aging population in Collin County, TX?

Collin County's population aged 65 years and above was 113,824. As per the U.S. Census Bureau's American Community Survey, this population is 10.95% of the entire population.

References

Datasets

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

Key observations

The largest age group in Collin County, TX was for the group of age 40-44 years with a population of 85,067 (8.18%), according to the 2021 American Community Survey. At the same time, the smallest age group in Collin County, TX was the 85+ years with a population of 9,828 (0.95%). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

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

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

Context

The dataset tabulates the Collin 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 Collin 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.

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

Collin County, TX 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 Collin County, TX population pyramid, which represents the Collin 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 Collin County, TX, is 31.0.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Collin County, TX, is 16.1.
  • Total dependency ratio for Collin County, TX is 47.1.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Collin County, TX is 6.2.

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

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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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