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New London County, CT Population by Age

The median age in New London County, CT is 41.4, as per 2021 ACS 5-Year Estimates. Of the total population, 15.89% were under the age of 15, 20.17% aged 15 to 29, 45.60% aged 30 to 64, 15.99% aged 65 to 84, and 2.35% were 85 years of age and older.
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By Neilsberg Research
Updated Sep 17, 2023

New London County, CT population age distribution

A complete breakdown of New London 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 13,084 4.86%
5 to 9 years 12,672 4.71%
10 to 14 years 17,005 6.32%
15 to 19 years 16,922 6.29%
20 to 24 years 19,483 7.24%
25 to 29 years 17,884 6.65%
30 to 34 years 17,125 6.36%
35 to 39 years 16,432 6.11%
40 to 44 years 14,245 5.29%
45 to 49 years 15,976 5.94%
50 to 54 years 18,742 6.96%
55 to 59 years 21,261 7.9%
60 to 64 years 18,942 7.04%
65 to 69 years 15,980 5.94%
70 to 74 years 13,058 4.85%
75 to 79 years 8,337 3.1%
80 to 84 years 5,668 2.11%
85 years and over 6,315 2.35%
Exploring New London County's Diversity? Request Customized Data Now!

TABLE OF CONTENTS

New London County, CT population by age group

Key stats
79,166
Population under 25 years
65,686
Population aged 25-44
74,921
Population aged 45-64
49,358
Population aged 65+

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

The graph shows New London 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
New London County, CT population by age group. The largest age group was 55-59 years with a poulation of 21,261 (7.90% of the total population). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

The largest age group in New London County, CT was for the group of age 55-59 years with a population of 21,261 (7.90%), according to the 2021 American Community Survey.

At the same time, the smallest age group in New London County, CT was the 80-84 years with a population of 5,668 (2.11%).

New London County, CT population by age cohort

To better understand the age distribution of New London County, CT'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 London 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.
New London County, CT 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 167,169 (62.11% 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 52,604 19.55%
18 to 64 years 167,169 62.11%
85 years and over 49,358 18.34%
Exploring New London 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:

  • New London County's population under 18 was 19.55%, compared to the 22.51% nationwide.
  • New London County's working population (between 18 and 64) was 62.11%, compared to 61.45% nationwide.
  • New London County's elderly or the senior population (over 65 age) was 18.34% as compared to 16.04% nationwide.

New London County, CT population pyramid

Population pyramid for New London County, CT 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 London County's population pyramid:

  • Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for New London County, CT, is 24.2.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for New London County, CT, is 27.9.
  • Total dependency ratio for New London County, CT is 52.0.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for New London County, CT is 3.6.
The graph shows New London 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.
New London County, CT population pyramid i.e. New London County population distrubution across age and gender. Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Here's the New London County, CT's male and female population across different age groups:

Age Group Population(Male) Population(Female) Total Population
Under 5 years 6,692 6,392 13,084
5 to 9 years 6,136 6,536 12,672
10 to 14 years 9,077 7,928 17,005
15 to 19 years 8,945 7,977 16,922
20 to 24 years 11,113 8,370 19,483
25 to 29 years 9,809 8,075 17,884
30 to 34 years 8,906 8,219 17,125
35 to 39 years 8,504 7,928 16,432
40 to 44 years 6,764 7,481 14,245
45 to 49 years 7,822 8,154 15,976
50 to 54 years 9,217 9,525 18,742
55 to 59 years 10,122 11,139 21,261
60 to 64 years 9,762 9,180 18,942
65 to 69 years 8,006 7,974 15,980
70 to 74 years 6,102 6,956 13,058
75 to 79 years 3,887 4,450 8,337
80 to 84 years 2,406 3,262 5,668
85 years and over 2,244 4,071 6,315
Exploring New London County's Diversity? Request Customized Data Now!

Things to know

What is the population of New London County, CT under 18?

New London County's population under the age of 18 is 52,604, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 19.55% of the total resident population of New London County, CT.

What is the aging population in New London County, CT?

New London County's population aged 65 years and above was 49,358. As per the U.S. Census Bureau's American Community Survey, this population is 18.34% of the entire population.

References

Datasets

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

Key observations

The largest age group in New London County, CT was for the group of age 55-59 years with a population of 21,261 (7.90%), according to the 2021 American Community Survey. At the same time, the smallest age group in New London County, CT was the 80-84 years with a population of 5,668 (2.11%). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

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

New London County, CT Age Cohorts Dataset: Children, Working Adults, and Seniors in New London County - 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 New London 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 New London 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.

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

New London County, CT 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 New London County, CT population pyramid, which represents the New London 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 New London County, CT, is 24.2.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for New London County, CT, is 27.9.
  • Total dependency ratio for New London County, CT is 52.0.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for New London County, CT is 3.6.

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

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New London County, CT Demographics New London County, CT 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