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Oakland County, MI Population by Age

The median age in Oakland County, MI is 41.0, as per 2021 ACS 5-Year Estimates. Of the total population, 17.02% were under the age of 15, 18.66% aged 15 to 29, 47.41% aged 30 to 64, 14.78% aged 65 to 84, and 2.13% were 85 years of age and older.
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By Neilsberg Research
Updated Sep 17, 2023

Oakland County, MI population age distribution

A complete breakdown of Oakland 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 67,659 5.32%
5 to 9 years 70,814 5.57%
10 to 14 years 78,035 6.13%
15 to 19 years 77,768 6.11%
20 to 24 years 74,035 5.82%
25 to 29 years 85,556 6.73%
30 to 34 years 82,556 6.49%
35 to 39 years 82,485 6.48%
40 to 44 years 78,287 6.15%
45 to 49 years 86,093 6.77%
50 to 54 years 90,596 7.12%
55 to 59 years 94,065 7.4%
60 to 64 years 88,991 7%
65 to 69 years 72,988 5.74%
70 to 74 years 57,026 4.48%
75 to 79 years 35,733 2.81%
80 to 84 years 22,196 1.74%
85 years and over 27,100 2.13%
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TABLE OF CONTENTS

Oakland County, MI population by age group

Key stats
368,311
Population under 25 years
328,884
Population aged 25-44
359,745
Population aged 45-64
215,043
Population aged 65+

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

The graph shows Oakland 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
Oakland County, MI population by age group. The largest age group was 55-59 years with a poulation of 94,065 (7.40% of the total population). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

The largest age group in Oakland County, MI was for the group of age 55-59 years with a population of 94,065 (7.40%), according to the 2021 American Community Survey.

At the same time, the smallest age group in Oakland County, MI was the 80-84 years with a population of 22,196 (1.74%).

Oakland County, MI population by age cohort

To better understand the age distribution of Oakland County, MI'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 Oakland 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.
Oakland County, MI 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 790,687 (62.16% 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 266,253 20.93%
18 to 64 years 790,687 62.16%
85 years and over 215,043 16.91%
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Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:

  • Oakland County's population under 18 was 20.93%, compared to the 22.51% nationwide.
  • Oakland County's working population (between 18 and 64) was 62.16%, compared to 61.45% nationwide.
  • Oakland County's elderly or the senior population (over 65 age) was 16.91% as compared to 16.04% nationwide.

Oakland County, MI population pyramid

Population pyramid for Oakland County, MI 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 Oakland County's population pyramid:

  • Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Oakland County, MI, is 25.8.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Oakland County, MI, is 25.6.
  • Total dependency ratio for Oakland County, MI is 51.3.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Oakland County, MI is 3.9.
The graph shows Oakland 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.
Oakland County, MI population pyramid i.e. Oakland County population distrubution across age and gender. Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Here's the Oakland County, MI's male and female population across different age groups:

Age Group Population(Male) Population(Female) Total Population
Under 5 years 34,633 33,026 67,659
5 to 9 years 36,823 33,991 70,814
10 to 14 years 39,160 38,875 78,035
15 to 19 years 39,823 37,945 77,768
20 to 24 years 38,140 35,895 74,035
25 to 29 years 44,472 41,084 85,556
30 to 34 years 42,197 40,359 82,556
35 to 39 years 41,359 41,126 82,485
40 to 44 years 39,159 39,128 78,287
45 to 49 years 42,321 43,772 86,093
50 to 54 years 44,626 45,970 90,596
55 to 59 years 46,308 47,757 94,065
60 to 64 years 42,785 46,206 88,991
65 to 69 years 35,123 37,865 72,988
70 to 74 years 25,479 31,547 57,026
75 to 79 years 15,966 19,767 35,733
80 to 84 years 9,566 12,630 22,196
85 years and over 9,297 17,803 27,100
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Things to know

What is the population of Oakland County, MI under 18?

Oakland County's population under the age of 18 is 266,253, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 20.93% of the total resident population of Oakland County, MI.

What is the aging population in Oakland County, MI?

Oakland County's population aged 65 years and above was 215,043. As per the U.S. Census Bureau's American Community Survey, this population is 16.91% of the entire population.

References

Datasets

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

Key observations

The largest age group in Oakland County, MI was for the group of age 55-59 years with a population of 94,065 (7.40%), according to the 2021 American Community Survey. At the same time, the smallest age group in Oakland County, MI was the 80-84 years with a population of 22,196 (1.74%). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

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

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

Context

The dataset tabulates the Oakland 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 Oakland 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.

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

Oakland County, MI 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 Oakland County, MI population pyramid, which represents the Oakland 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 Oakland County, MI, is 25.8.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Oakland County, MI, is 25.6.
  • Total dependency ratio for Oakland County, MI is 51.3.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Oakland County, MI is 3.9.

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

Explore related topics

Oakland County, MI Demographics Oakland County, MI Population

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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