Macomb County, MI Population by Age

The median age in Macomb County, MI is 41.1, as per 2019-2023 ACS 5 -Year Estimates. Of the total population, 16.97% were under the age of 15, 18.68% aged 15 to 29, 46.53% aged 30 to 64, 15.66% aged 65 to 84, and 2.18% were 85 years of age and older.
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Updated Feb 22, 2025

Macomb County, MI population age distributions

A complete breakdown of Macomb 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 46,561 5.31%
5 to 9 years 48,708 5.55%
10 to 14 years 53,641 6.11%
15 to 19 years 51,669 5.89%
20 to 24 years 51,047 5.82%
25 to 29 years 61,143 6.97%
30 to 34 years 59,827 6.82%
35 to 39 years 53,526 6.1%
40 to 44 years 52,841 6.02%
45 to 49 years 54,809 6.25%
50 to 54 years 61,109 6.96%
55 to 59 years 63,119 7.19%
60 to 64 years 63,086 7.19%
65 to 69 years 52,223 5.95%
70 to 74 years 40,673 4.63%
75 to 79 years 27,000 3.08%
80 to 84 years 17,541 2%
85 years and over 19,101 2.18%
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Macomb County, MI population by age group

Key stats
251,626
Population under 25 years
227,337
Population aged 25-44
242,123
Population aged 45-64
156,538
Population aged 65+

Sources: U.S. Census Bureau, American Community Survey (ACS) 2019-2023

FIGURE 1

Macomb County, MI population by age group.

The largest age group is 55 to 59 years with a population of 63,119 (7.19% of the total population).

Source: U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates.

The largest age group in Macomb County, MI was for the group of age 55 to 59 years with a population of 63,119 (7.19%), according to the 2019-2023 American Community Survey.

At the same time, the smallest age group in Macomb County, MI was the 80 to 84 years with a population of 17,541 (2%).

Macomb County, MI population by age cohort

To better understand the age distribution of Macomb 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

FIGURE 2

Macomb County, MI population by age cohort

The largest age group was 18 to 64 years with a population of 538,313 (61.34% of the total population).

Source: U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates.

Macomb County, MI population by age cohort

Here's the population for each of the three cohorts.

Age Group Population % of Total Population
Under 18 years 182,773 20.83%
18 to 64 years 538,313 61.34%
65 years and over 156,538 17.84%
Exploring Macomb County's Diversity? Request Customized Data Now!

Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:

  • Macomb County 's population under 18 was 20.83%, compared to the 22.16% nationwide.
  • Macomb County's working population (between 18 and 64) was 61.34%, compared to 61% nationwide.
  • Macomb County's elderly or the senior population (over 65 age) was 17.84% as compared to 16.84% nationwide.

Macomb County, MI population pyramid

Population pyramid for Macomb 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 Macomb County's population pyramid:

  • Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Macomb County, MI, is 26.0.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Macomb County, MI, is 27.4.
  • Total dependency ratio for Macomb County, MI is 53.4.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Macomb County, MI is 3.7.

FIGURE 3

Macomb County, MI population pyramid

Macomb County population distrubution across age and gender. A wide base suggests population increase, narrow base indicates declining birth rates.

Source: U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates.

Macomb County, MI population pyramid

Here's the Macomb County, MI's male and female population across different age groups .

Age Group Population(Male) Population(Female) Total Population
Under 5 years 23,927 22,634 46,561
5 to 9 years 24,758 23,950 48,708
10 to 14 years 27,631 26,010 53,641
15 to 19 years 26,843 24,826 51,669
20 to 24 years 25,751 25,296 51,047
25 to 29 years 30,641 30,502 61,143
30 to 34 years 30,056 29,771 59,827
35 to 39 years 26,423 27,103 53,526
40 to 44 years 26,293 26,548 52,841
45 to 49 years 26,976 27,833 54,809
50 to 54 years 29,964 31,145 61,109
55 to 59 years 31,681 31,438 63,119
60 to 64 years 30,003 33,083 63,086
65 to 69 years 25,147 27,076 52,223
70 to 74 years 18,304 22,369 40,673
75 to 79 years 12,137 14,863 27,000
80 to 84 years 6,897 10,644 17,541
85 years and over 6,371 12,730 19,101
Exploring Macomb County's Diversity? Request Customized Data Now!

Things to know

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

Macomb County's population under the age of 18 is 182,773, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 20.83% of the total resident population of Macomb County, MI.

What is the aging population in Macomb County, MI?

Macomb County's population aged 65 years and above was 156,538. As per the U.S. Census Bureau's American Community Survey, this population is 17.84% of the entire population.

References

Datasets

Explore datasets by year of publication.
2025
Macomb County, MI Age Group Population Dataset: A Complete Breakdown of Macomb County Age Demographics from 0 to 85 Years and Over, Distributed Across 18 Age Groups // 2025 Edition
Last updated February 22, 2025
ACS
Free
Neilsberg
CSV, JSON
2019-2023
CC BY 4.0
About this dataset

Context

The dataset tabulates the Macomb 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 Macomb County. The dataset can be utilized to understand the population distribution of Macomb County by age. For example, using this dataset, we can identify the largest age group in Macomb County.

Key observations

The largest age group in Macomb County, MI was for the group of age 55 to 59 years years with a population of 63,119 (7.19%), according to the ACS 2019-2023 5-Year Estimates. At the same time, the smallest age group in Macomb County, MI was the 80 to 84 years years with a population of 17,541 (2%). Source: U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates

Content

When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2019-2023 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 Macomb County is shown in this column.
  • % of Total Population: This column displays the population of each age group as a proportion of Macomb 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 Macomb County Population by Age. You can refer the same here

Macomb County, MI Age Cohorts Dataset: Children, Working Adults, and Seniors in Macomb County - Population and Percentage Analysis // 2025 Edition
Last updated February 22, 2025
ACS
Free
Neilsberg
CSV, JSON
2019-2023
CC BY 4.0
About this dataset

Context

The dataset tabulates the Macomb 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 Macomb 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 18 to 64 years with a poulation of 538,313 (61.34% of the total population). Source: U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates.

Content

When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2019-2023 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 Macomb County population analysis. Total expected values are 3 groups ( Children, Working Population and Senior Population).
  • Population: The population for the age cohort in Macomb County is shown in the following column.
  • Percent of Total Population: The population as a percent of total population of the Macomb 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 Macomb County Population by Age. You can refer the same here

Macomb County, MI Population Pyramid Dataset: Age Groups, Male and Female Population, and Total Population for Demographics Analysis // 2025 Edition
Last updated February 22, 2025
ACS
Free
Neilsberg
CSV, JSON
2019-2023
CC BY 4.0
About this dataset

Context

The dataset tabulates the data for the Macomb County, MI population pyramid, which represents the Macomb County population distribution across age and gender, using estimates from the U.S. Census Bureau American Community Survey (ACS) 2019-2023 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 Macomb County, MI, is 26.0.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Macomb County, MI, is 27.4.
  • Total dependency ratio for Macomb County, MI is 53.4.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Macomb County, MI is 3.7.
Content

When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2019-2023 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 Macomb County population analysis. Total expected values are 18 and are define above in the age groups section.
  • Population (Male): The male population in the Macomb County for the selected age group is shown in the following column.
  • Population (Female): The female population in the Macomb County for the selected age group is shown in the following column.
  • Total Population: The total population of the Macomb 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 Macomb 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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