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New Jersey Population by Age

The median age in New Jersey is 40.0, as per 2021 ACS 5-Year Estimates. Of the total population, 18.18% were under the age of 15, 18.72% aged 15 to 29, 46.92% aged 30 to 64, 14.03% aged 65 to 84, and 2.15% were 85 years of age and older.
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By Neilsberg Research
Updated Sep 17, 2023

New Jersey population age distribution

A complete breakdown of New Jersey'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 530,376 5.74%
5 to 9 years 557,847 6.04%
10 to 14 years 590,073 6.39%
15 to 19 years 584,965 6.33%
20 to 24 years 559,157 6.06%
25 to 29 years 584,584 6.33%
30 to 34 years 595,252 6.45%
35 to 39 years 611,665 6.62%
40 to 44 years 585,341 6.34%
45 to 49 years 613,106 6.64%
50 to 54 years 652,065 7.06%
55 to 59 years 667,696 7.23%
60 to 64 years 607,381 6.58%
65 to 69 years 484,088 5.24%
70 to 74 years 382,830 4.15%
75 to 79 years 255,790 2.77%
80 to 84 years 172,852 1.87%
85 years and over 198,956 2.15%
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TABLE OF CONTENTS

New Jersey population by age group

Key stats
2,822,418
Population under 25 years
2,376,842
Population aged 25-44
2,540,248
Population aged 45-64
1,494,516
Population aged 65+

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

The graph shows New Jersey'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
New Jersey population by age group. The largest age group was 55-59 years with a poulation of 667,696 (7.23% of the total population). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

The largest age group in New Jersey was for the group of age 55-59 years with a population of 667,696 (7.23%), according to the 2021 American Community Survey.

At the same time, the smallest age group in New Jersey was the 80-84 years with a population of 172,852 (1.87%).

New Jersey population by age cohort

To better understand the age distribution of New Jersey'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 New Jersey'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.
New Jersey 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 5,699,066 (61.72% 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 2,040,442 22.1%
18 to 64 years 5,699,066 61.72%
85 years and over 1,494,516 16.18%
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Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:

  • New Jersey's population under 18 was 22.10%, compared to the 22.51% nationwide.
  • New Jersey's working population (between 18 and 64) was 61.72%, compared to 61.45% nationwide.
  • New Jersey's elderly or the senior population (over 65 age) was 16.18% as compared to 16.04% nationwide.

New Jersey population pyramid

Population pyramid for New Jersey 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 New Jersey's population pyramid:

  • Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for New Jersey, is 27.7.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for New Jersey, is 24.7.
  • Total dependency ratio for New Jersey is 52.3.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for New Jersey is 4.1.
The graph shows New Jersey'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.
New Jersey population pyramid i.e. New Jersey population distrubution across age and gender. Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

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

Age Group Population(Male) Population(Female) Total Population
Under 5 years 271,646 258,730 530,376
5 to 9 years 287,097 270,750 557,847
10 to 14 years 299,463 290,610 590,073
15 to 19 years 300,802 284,163 584,965
20 to 24 years 283,960 275,197 559,157
25 to 29 years 296,741 287,843 584,584
30 to 34 years 300,787 294,465 595,252
35 to 39 years 306,668 304,997 611,665
40 to 44 years 292,044 293,297 585,341
45 to 49 years 303,778 309,328 613,106
50 to 54 years 320,503 331,562 652,065
55 to 59 years 327,668 340,028 667,696
60 to 64 years 295,053 312,328 607,381
65 to 69 years 228,154 255,934 484,088
70 to 74 years 174,895 207,935 382,830
75 to 79 years 111,399 144,391 255,790
80 to 84 years 70,739 102,113 172,852
85 years and over 67,914 131,042 198,956
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Things to know

What is the population of New Jersey under 18?

New Jersey's population under the age of 18 is 2,040,442, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 22.10% of the total resident population of New Jersey.

What is the aging population in New Jersey?

New Jersey's population aged 65 years and above was 1,494,516. As per the U.S. Census Bureau's American Community Survey, this population is 16.18% of the entire population.

References

Datasets

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

Key observations

The largest age group in New Jersey was for the group of age 55-59 years with a population of 667,696 (7.23%), according to the 2021 American Community Survey. At the same time, the smallest age group in New Jersey was the 80-84 years with a population of 172,852 (1.87%). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

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

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

Context

The dataset tabulates the New Jersey 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 New Jersey. 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.

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

New Jersey 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 New Jersey population pyramid, which represents the New Jersey 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 New Jersey, is 27.7.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for New Jersey, is 24.7.
  • Total dependency ratio for New Jersey is 52.3.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for New Jersey is 4.1.

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

Explore related topics

New Jersey Demographics New Jersey Population

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About the author

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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