Massachusetts Population by Age

The median age in Massachusetts is 39.6, as per 2021 ACS 5-Year Estimates. Of the total population, 16.24% were under the age of 15, 20.76% aged 15 to 29, 46.46% aged 30 to 64, 14.26% aged 65 to 84, and 2.27% were 85 years of age and older.
Neilsberg Research Avatar
Updated Sep 17, 2023

Massachusetts population age distribution

A complete breakdown of Massachusetts'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 357,943 5.12%
5 to 9 years 371,837 5.32%
10 to 14 years 405,900 5.81%
15 to 19 years 466,649 6.67%
20 to 24 years 486,655 6.96%
25 to 29 years 498,204 7.13%
30 to 34 years 492,419 7.04%
35 to 39 years 453,008 6.48%
40 to 44 years 420,388 6.01%
45 to 49 years 438,867 6.28%
50 to 54 years 480,563 6.87%
55 to 59 years 499,884 7.15%
60 to 64 years 463,504 6.63%
65 to 69 years 381,323 5.45%
70 to 74 years 301,597 4.31%
75 to 79 years 189,151 2.71%
80 to 84 years 125,133 1.79%
85 years and over 158,827 2.27%
Exploring Massachusetts's Diversity? Request Customized Data Now!

Massachusetts population by age group

Key stats
2,088,984
Population under 25 years
1,864,019
Population aged 25-44
1,882,818
Population aged 45-64
1,156,031
Population aged 65+

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

The graph shows Massachusetts'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
Massachusetts population by age group. The largest age group was 55-59 years with a poulation of 499,884 (7.15% of the total population). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

The largest age group in Massachusetts was for the group of age 55-59 years with a population of 499,884 (7.15%), according to the 2021 American Community Survey.

At the same time, the smallest age group in Massachusetts was the 80-84 years with a population of 125,133 (1.79%).

Massachusetts population by age cohort

To better understand the age distribution of Massachusetts'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 Massachusetts'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.
Massachusetts 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 4,446,097 (63.59% 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 1,389,724 19.88%
18 to 64 years 4,446,097 63.59%
85 years and over 1,156,031 16.53%
Exploring Massachusetts's Diversity? Request Customized Data Now!

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

  • Massachusetts's population under 18 was 19.88%, compared to the 22.51% nationwide.
  • Massachusetts's working population (between 18 and 64) was 63.59%, compared to 61.45% nationwide.
  • Massachusetts's elderly or the senior population (over 65 age) was 16.53% as compared to 16.04% nationwide.

Massachusetts population pyramid

Population pyramid for Massachusetts 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 Massachusetts's population pyramid:

  • Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Massachusetts, is 24.2.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Massachusetts, is 24.6.
  • Total dependency ratio for Massachusetts is 48.8.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Massachusetts is 4.1.
The graph shows Massachusetts'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.
Massachusetts population pyramid i.e. Massachusetts population distrubution across age and gender. Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Here's the Massachusetts's male and female population across different age groups:

Age Group Population(Male) Population(Female) Total Population
Under 5 years 183,397 174,546 357,943
5 to 9 years 189,716 182,121 371,837
10 to 14 years 208,481 197,419 405,900
15 to 19 years 234,217 232,432 466,649
20 to 24 years 241,683 244,972 486,655
25 to 29 years 250,358 247,846 498,204
30 to 34 years 245,596 246,823 492,419
35 to 39 years 224,342 228,666 453,008
40 to 44 years 208,058 212,330 420,388
45 to 49 years 215,042 223,825 438,867
50 to 54 years 235,548 245,015 480,563
55 to 59 years 245,573 254,311 499,884
60 to 64 years 223,344 240,160 463,504
65 to 69 years 180,642 200,681 381,323
70 to 74 years 138,031 163,566 301,597
75 to 79 years 82,445 106,706 189,151
80 to 84 years 52,395 72,738 125,133
85 years and over 54,306 104,521 158,827
Exploring Massachusetts's Diversity? Request Customized Data Now!

Things to know

What is the population of Massachusetts under 18?

Massachusetts's population under the age of 18 is 1,389,724, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 19.88% of the total resident population of Massachusetts.

What is the aging population in Massachusetts?

Massachusetts's population aged 65 years and above was 1,156,031. As per the U.S. Census Bureau's American Community Survey, this population is 16.53% of the entire population.

References

Datasets

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

Key observations

The largest age group in Massachusetts was for the group of age 55-59 years with a population of 499,884 (7.15%), according to the 2021 American Community Survey. At the same time, the smallest age group in Massachusetts was the 80-84 years with a population of 125,133 (1.79%). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

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

Massachusetts Age Cohorts Dataset: Children, Working Adults, and Seniors in Massachusetts - 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 Massachusetts 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 Massachusetts. 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.

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

Massachusetts 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 Massachusetts population pyramid, which represents the Massachusetts 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 Massachusetts, is 24.2.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Massachusetts, is 24.6.
  • Total dependency ratio for Massachusetts is 48.8.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Massachusetts is 4.1.

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

About the author

Neilsberg Research Avatar
Neilsberg Research
Neilsberg Research team are data scientists with expertise in processing, analysis and visualization of big data helping small businesses make right decisions.

Share

This article is for informational purposes only and is not intended to be legal or tax advice. We recommend that you consult with a qualified professional such as a lawyer or accountant before making a decision. Many of the products and services featured here are from our affiliate partners. We may receive commissions on purchases made from our chosen links. Read advertiser disclosure.