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Brookhaven, New York Population by Age

The median age in Brookhaven, New York is 40.2, as per 2021 ACS 5-Year Estimates. Of the total population, 17.13% were under the age of 15, 20.93% aged 15 to 29, 45.90% aged 30 to 64, 14.15% aged 65 to 84, and 1.88% were 85 years of age and older.
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By Neilsberg Research
Updated Sep 17, 2023

Brookhaven, New York population age distribution

A complete breakdown of Brookhaven town'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 24,966 5.14%
5 to 9 years 26,055 5.36%
10 to 14 years 32,222 6.63%
15 to 19 years 36,606 7.53%
20 to 24 years 34,273 7.05%
25 to 29 years 30,846 6.35%
30 to 34 years 28,272 5.82%
35 to 39 years 28,664 5.9%
40 to 44 years 28,582 5.88%
45 to 49 years 32,517 6.69%
50 to 54 years 36,697 7.55%
55 to 59 years 36,433 7.5%
60 to 64 years 31,913 6.57%
65 to 69 years 25,034 5.15%
70 to 74 years 21,500 4.42%
75 to 79 years 14,126 2.91%
80 to 84 years 8,126 1.67%
85 years and over 9,152 1.88%
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TABLE OF CONTENTS

Brookhaven, New York population by age group

Key stats
154,122
Population under 25 years
116,364
Population aged 25-44
137,560
Population aged 45-64
77,938
Population aged 65+

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

The graph shows Brookhaven town'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
Brookhaven, New York population by age group. The largest age group was 50-54 years with a poulation of 36,697 (7.55% of the total population). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

The largest age group in Brookhaven, New York was for the group of age 50-54 years with a population of 36,697 (7.55%), according to the 2021 American Community Survey.

At the same time, the smallest age group in Brookhaven, New York was the 80-84 years with a population of 8,126 (1.67%).

Brookhaven, New York population by age cohort

To better understand the age distribution of Brookhaven, New York'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 Brookhaven town'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.
Brookhaven, New York 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 304,459 (62.65% 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 103,587 21.31%
18 to 64 years 304,459 62.65%
85 years and over 77,938 16.04%
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Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:

  • Brookhaven town's population under 18 was 21.31%, compared to the 22.51% nationwide.
  • Brookhaven town's working population (between 18 and 64) was 62.65%, compared to 61.45% nationwide.
  • Brookhaven town's elderly or the senior population (over 65 age) was 16.04% as compared to 16.04% nationwide.

Brookhaven, New York population pyramid

Population pyramid for Brookhaven, New York 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 Brookhaven town's population pyramid:

  • Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Brookhaven, New York, is 25.6.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Brookhaven, New York, is 24.0.
  • Total dependency ratio for Brookhaven, New York is 49.6.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Brookhaven, New York is 4.2.
The graph shows Brookhaven town'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.
Brookhaven, New York population pyramid i.e. Brookhaven town population distrubution across age and gender. Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Here's the Brookhaven, New York's male and female population across different age groups:

Age Group Population(Male) Population(Female) Total Population
Under 5 years 12,541 12,425 24,966
5 to 9 years 13,230 12,825 26,055
10 to 14 years 15,973 16,249 32,222
15 to 19 years 18,529 18,077 36,606
20 to 24 years 16,528 17,745 34,273
25 to 29 years 15,889 14,957 30,846
30 to 34 years 14,397 13,875 28,272
35 to 39 years 15,013 13,651 28,664
40 to 44 years 13,739 14,843 28,582
45 to 49 years 15,462 17,055 32,517
50 to 54 years 18,848 17,849 36,697
55 to 59 years 19,121 17,312 36,433
60 to 64 years 15,793 16,120 31,913
65 to 69 years 11,949 13,085 25,034
70 to 74 years 9,812 11,688 21,500
75 to 79 years 6,342 7,784 14,126
80 to 84 years 3,418 4,708 8,126
85 years and over 3,015 6,137 9,152
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Things to know

What is the population of Brookhaven, New York under 18?

Brookhaven town's population under the age of 18 is 103,587, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 21.31% of the total resident population of Brookhaven, New York.

What is the aging population in Brookhaven, New York?

Brookhaven town's population aged 65 years and above was 77,938. As per the U.S. Census Bureau's American Community Survey, this population is 16.04% of the entire population.

References

Datasets

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

Key observations

The largest age group in Brookhaven, New York was for the group of age 50-54 years with a population of 36,697 (7.55%), according to the 2021 American Community Survey. At the same time, the smallest age group in Brookhaven, New York was the 80-84 years with a population of 8,126 (1.67%). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

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

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

Context

The dataset tabulates the Brookhaven town 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 Brookhaven town. 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.

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

Brookhaven, New York 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 Brookhaven, New York population pyramid, which represents the Brookhaven town 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 Brookhaven, New York, is 25.6.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Brookhaven, New York, is 24.0.
  • Total dependency ratio for Brookhaven, New York is 49.6.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Brookhaven, New York is 4.2.

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

Explore related topics

Brookhaven, New York Demographics Brookhaven, New York 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