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Somerset County, NJ Population by Age

The median age in Somerset County, NJ is 42.0, as per 2018-2022 ACS 5 -Year Estimates. Of the total population, 17.11% were under the age of 15, 18.08% aged 15 to 29, 48.53% aged 30 to 64, 13.96% aged 65 to 84, and 2.32% were 85 years of age and older.
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By Neilsberg Research
Updated Jul 26, 2024

Somerset County, NJ population age distributions

A complete breakdown of Somerset 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 17,036 4.94%
5 to 9 years 19,073 5.53%
10 to 14 years 22,914 6.64%
15 to 19 years 22,704 6.58%
20 to 24 years 20,644 5.98%
25 to 29 years 19,053 5.52%
30 to 34 years 19,396 5.62%
35 to 39 years 22,409 6.5%
40 to 44 years 22,592 6.55%
45 to 49 years 24,517 7.11%
50 to 54 years 26,859 7.79%
55 to 59 years 27,288 7.91%
60 to 64 years 24,338 7.05%
65 to 69 years 18,338 5.32%
70 to 74 years 13,483 3.91%
75 to 79 years 9,295 2.69%
80 to 84 years 7,037 2.04%
85 years and over 8,002 2.32%
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Somerset County, NJ population by age group

Key stats
102,371
Population under 25 years
83,450
Population aged 25-44
103,002
Population aged 45-64
56,155
Population aged 65+

Sources: U.S. Census Bureau, American Community Survey (ACS) 2018-2022

FIGURE 1

Somerset County, NJ population by age group.

The largest age group is 55 to 59 years with a population of 27,288 (7.91% of the total population).

Source: U.S. Census Bureau American Community Survey (ACS) 2018-2022 5-Year Estimates.
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The largest age group in Somerset County, NJ was for the group of age 55 to 59 years with a population of 27,288 (7.91%), according to the 2018-2022 American Community Survey.

At the same time, the smallest age group in Somerset County, NJ was the 80 to 84 years with a population of 7,037 (2.04%).

Somerset County, NJ population by age cohort

To better understand the age distribution of Somerset County, NJ'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

Somerset County, NJ population by age cohort

The largest age group was 18 to 64 years with a population of 215,149 (62.37% of the total population).

Source: U.S. Census Bureau American Community Survey (ACS) 2018-2022 5-Year Estimates.
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Somerset County, NJ population by age cohort

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

Age Group Population % of Total Population
Under 18 years 73,674 21.36%
18 to 64 years 215,149 62.37%
65 years and over 56,155 16.28%
Exploring Somerset 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:

  • Somerset County 's population under 18 was 21.36%, compared to the 22.11% nationwide.
  • Somerset County's working population (between 18 and 64) was 62.37%, compared to 61.36% nationwide.
  • Somerset County's elderly or the senior population (over 65 age) was 16.28% as compared to 16.53% nationwide.

Somerset County, NJ population pyramid

Population pyramid for Somerset County, NJ 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 Somerset County's population pyramid:

  • Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Somerset County, NJ, is 25.7.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Somerset County, NJ, is 24.4.
  • Total dependency ratio for Somerset County, NJ is 50.1.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Somerset County, NJ is 4.1.

FIGURE 3

Somerset County, NJ population pyramid

Somerset 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) 2018-2022 5-Year Estimates.
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Somerset County, NJ population pyramid

Here's the Somerset County, NJ's male and female population across different age groups .

Age Group Population(Male) Population(Female) Total Population
Under 5 years 8,732 8,304 17,036
5 to 9 years 9,951 9,122 19,073
10 to 14 years 11,674 11,240 22,914
15 to 19 years 11,838 10,866 22,704
20 to 24 years 10,339 10,305 20,644
25 to 29 years 9,758 9,295 19,053
30 to 34 years 9,790 9,606 19,396
35 to 39 years 11,027 11,382 22,409
40 to 44 years 11,221 11,371 22,592
45 to 49 years 12,269 12,248 24,517
50 to 54 years 13,365 13,494 26,859
55 to 59 years 13,612 13,676 27,288
60 to 64 years 11,991 12,347 24,338
65 to 69 years 8,625 9,713 18,338
70 to 74 years 6,489 6,994 13,483
75 to 79 years 3,942 5,353 9,295
80 to 84 years 2,828 4,209 7,037
85 years and over 2,702 5,300 8,002
Exploring Somerset County's Diversity? Request Customized Data Now!

Things to know

What is the population of Somerset County, NJ under 18?

Somerset County's population under the age of 18 is 73,674, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 21.36% of the total resident population of Somerset County, NJ.

What is the aging population in Somerset County, NJ?

Somerset County's population aged 65 years and above was 56,155. As per the U.S. Census Bureau's American Community Survey, this population is 16.28% of the entire population.

References

Datasets

Explore datasets by year of publication.
2024
Somerset County, NJ Age Group Population Dataset: A Complete Breakdown of Somerset County Age Demographics from 0 to 85 Years and Over, Distributed Across 18 Age Groups // 2024 Edition
Last updated July 24, 2024
ACS
Free
Neilsberg
CSV, JSON
2018-2022
CC BY 4.0
About this dataset

Context

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

Key observations

The largest age group in Somerset County, NJ was for the group of age 55 to 59 years years with a population of 27,288 (7.91%), according to the ACS 2018-2022 5-Year Estimates. At the same time, the smallest age group in Somerset County, NJ was the 80 to 84 years years with a population of 7,037 (2.04%). Source: U.S. Census Bureau American Community Survey (ACS) 2018-2022 5-Year Estimates

Content

When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2018-2022 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 Somerset County is shown in this column.
  • % of Total Population: This column displays the population of each age group as a proportion of Somerset 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 Somerset County Population by Age. You can refer the same here

Somerset County, NJ Age Cohorts Dataset: Children, Working Adults, and Seniors in Somerset County - Population and Percentage Analysis // 2024 Edition
Last updated July 24, 2024
ACS
Free
Neilsberg
CSV, JSON
2018-2022
CC BY 4.0
About this dataset

Context

The dataset tabulates the Somerset 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 Somerset 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 215,149 (62.37% of the total population). Source: U.S. Census Bureau American Community Survey (ACS) 2018-2022 5-Year Estimates.

Content

When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2018-2022 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 Somerset County population analysis. Total expected values are 3 groups ( Children, Working Population and Senior Population).
  • Population: The population for the age cohort in Somerset County is shown in the following column.
  • Percent of Total Population: The population as a percent of total population of the Somerset 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 Somerset County Population by Age. You can refer the same here

Somerset County, NJ Population Pyramid Dataset: Age Groups, Male and Female Population, and Total Population for Demographics Analysis // 2024 Edition
Last updated July 24, 2024
ACS
Free
Neilsberg
CSV, JSON
2018-2022
CC BY 4.0
About this dataset

Context

The dataset tabulates the data for the Somerset County, NJ population pyramid, which represents the Somerset County population distribution across age and gender, using estimates from the U.S. Census Bureau American Community Survey (ACS) 2018-2022 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 Somerset County, NJ, is 25.7.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Somerset County, NJ, is 24.4.
  • Total dependency ratio for Somerset County, NJ is 50.1.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Somerset County, NJ is 4.1.
Content

When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2018-2022 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 Somerset County population analysis. Total expected values are 18 and are define above in the age groups section.
  • Population (Male): The male population in the Somerset County for the selected age group is shown in the following column.
  • Population (Female): The female population in the Somerset County for the selected age group is shown in the following column.
  • Total Population: The total population of the Somerset 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 Somerset 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.

Explore related topics

Somerset County, NJ Demographics Somerset County, NJ Population

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Collection 5 Resources