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Rensselaer County, NY Population by Age

The median age in Rensselaer County, NY is 40.1, as per 2021 ACS 5-Year Estimates. Of the total population, 16.07% were under the age of 15, 20.23% aged 15 to 29, 46.49% aged 30 to 64, 15.11% aged 65 to 84, and 2.10% were 85 years of age and older.
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By Neilsberg Research
Updated Sep 17, 2023

Rensselaer County, NY population age distribution

A complete breakdown of Rensselaer 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 8,157 5.06%
5 to 9 years 8,445 5.24%
10 to 14 years 9,296 5.77%
15 to 19 years 11,131 6.91%
20 to 24 years 10,396 6.45%
25 to 29 years 11,072 6.87%
30 to 34 years 11,177 6.94%
35 to 39 years 10,697 6.64%
40 to 44 years 9,146 5.68%
45 to 49 years 9,669 6%
50 to 54 years 10,834 6.72%
55 to 59 years 11,692 7.26%
60 to 64 years 11,688 7.25%
65 to 69 years 9,319 5.78%
70 to 74 years 7,743 4.81%
75 to 79 years 4,335 2.69%
80 to 84 years 2,947 1.83%
85 years and over 3,381 2.1%
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TABLE OF CONTENTS

Rensselaer County, NY population by age group

Key stats
47,425
Population under 25 years
42,092
Population aged 25-44
43,883
Population aged 45-64
27,725
Population aged 65+

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

The graph shows Rensselaer County'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
Rensselaer County, NY population by age group. The largest age group was 55-59 years with a poulation of 11,692 (7.26% of the total population). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

The largest age group in Rensselaer County, NY was for the group of age 55-59 years with a population of 11,692 (7.26%), according to the 2021 American Community Survey.

At the same time, the smallest age group in Rensselaer County, NY was the 80-84 years with a population of 2,947 (1.83%).

Rensselaer County, NY population by age cohort

To better understand the age distribution of Rensselaer County, NY'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 Rensselaer County'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.
Rensselaer County, NY 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 101,912 (63.25% 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 31,488 19.54%
18 to 64 years 101,912 63.25%
85 years and over 27,725 17.21%
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Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:

  • Rensselaer County's population under 18 was 19.54%, compared to the 22.51% nationwide.
  • Rensselaer County's working population (between 18 and 64) was 63.25%, compared to 61.45% nationwide.
  • Rensselaer County's elderly or the senior population (over 65 age) was 17.21% as compared to 16.04% nationwide.

Rensselaer County, NY population pyramid

Population pyramid for Rensselaer County, NY 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 Rensselaer County's population pyramid:

  • Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Rensselaer County, NY, is 24.1.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Rensselaer County, NY, is 25.8.
  • Total dependency ratio for Rensselaer County, NY is 49.9.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Rensselaer County, NY is 3.9.
The graph shows Rensselaer County'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.
Rensselaer County, NY population pyramid i.e. Rensselaer County population distrubution across age and gender. Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Here's the Rensselaer County, NY's male and female population across different age groups:

Age Group Population(Male) Population(Female) Total Population
Under 5 years 4,218 3,939 8,157
5 to 9 years 4,338 4,107 8,445
10 to 14 years 4,817 4,479 9,296
15 to 19 years 6,059 5,072 11,131
20 to 24 years 5,609 4,787 10,396
25 to 29 years 5,560 5,512 11,072
30 to 34 years 5,541 5,636 11,177
35 to 39 years 5,376 5,321 10,697
40 to 44 years 4,554 4,592 9,146
45 to 49 years 4,724 4,945 9,669
50 to 54 years 5,277 5,557 10,834
55 to 59 years 5,677 6,015 11,692
60 to 64 years 5,773 5,915 11,688
65 to 69 years 4,632 4,687 9,319
70 to 74 years 3,598 4,145 7,743
75 to 79 years 2,013 2,322 4,335
80 to 84 years 1,216 1,731 2,947
85 years and over 1,058 2,323 3,381
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Things to know

What is the population of Rensselaer County, NY under 18?

Rensselaer County's population under the age of 18 is 31,488, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 19.54% of the total resident population of Rensselaer County, NY.

What is the aging population in Rensselaer County, NY?

Rensselaer County's population aged 65 years and above was 27,725. As per the U.S. Census Bureau's American Community Survey, this population is 17.21% of the entire population.

References

Datasets

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

Key observations

The largest age group in Rensselaer County, NY was for the group of age 55-59 years with a population of 11,692 (7.26%), according to the 2021 American Community Survey. At the same time, the smallest age group in Rensselaer County, NY was the 80-84 years with a population of 2,947 (1.83%). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

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

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

Context

The dataset tabulates the Rensselaer 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 Rensselaer 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 $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.

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

Rensselaer County, NY 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 Rensselaer County, NY population pyramid, which represents the Rensselaer County 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 Rensselaer County, NY, is 24.1.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Rensselaer County, NY, is 25.8.
  • Total dependency ratio for Rensselaer County, NY is 49.9.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Rensselaer County, NY is 3.9.

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

Explore related topics

Rensselaer County, NY Demographics Rensselaer County, NY Population

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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