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Johnston County, NC Population by Age

The median age in Johnston County, NC is 38.5, as per 2021 ACS 5-Year Estimates. Of the total population, 20.82% were under the age of 15, 18.39% aged 15 to 29, 47.48% aged 30 to 64, 12.05% aged 65 to 84, and 1.26% were 85 years of age and older.
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By Neilsberg Research
Updated Sep 17, 2023

Johnston County, NC population age distribution

A complete breakdown of Johnston 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 12,889 6.1%
5 to 9 years 13,566 6.42%
10 to 14 years 17,532 8.3%
15 to 19 years 14,735 6.97%
20 to 24 years 11,614 5.5%
25 to 29 years 12,515 5.92%
30 to 34 years 13,564 6.42%
35 to 39 years 14,207 6.72%
40 to 44 years 14,877 7.04%
45 to 49 years 15,917 7.53%
50 to 54 years 15,496 7.33%
55 to 59 years 13,232 6.26%
60 to 64 years 13,047 6.17%
65 to 69 years 9,703 4.59%
70 to 74 years 8,400 3.98%
75 to 79 years 4,386 2.08%
80 to 84 years 2,968 1.4%
85 years and over 2,672 1.26%
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TABLE OF CONTENTS

Johnston County, NC population by age group

Key stats
70,336
Population under 25 years
55,163
Population aged 25-44
57,692
Population aged 45-64
28,129
Population aged 65+

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

The graph shows Johnston 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
Johnston County, NC population by age group. The largest age group was 10-14 years with a poulation of 17,532 (8.30% of the total population). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

The largest age group in Johnston County, NC was for the group of age 10-14 years with a population of 17,532 (8.30%), according to the 2021 American Community Survey.

At the same time, the smallest age group in Johnston County, NC was the 85+ years with a population of 2,672 (1.26%).

Johnston County, NC population by age cohort

To better understand the age distribution of Johnston County, NC'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 Johnston 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.
Johnston County, NC 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 129,452 (61.26% 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 53,739 25.43%
18 to 64 years 129,452 61.26%
85 years and over 28,129 13.31%
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Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:

  • Johnston County's population under 18 was 25.43%, compared to the 22.51% nationwide.
  • Johnston County's working population (between 18 and 64) was 61.26%, compared to 61.45% nationwide.
  • Johnston County's elderly or the senior population (over 65 age) was 13.31% as compared to 16.04% nationwide.

Johnston County, NC population pyramid

Population pyramid for Johnston County, NC 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 Johnston County's population pyramid:

  • Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Johnston County, NC, is 31.6.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Johnston County, NC, is 20.2.
  • Total dependency ratio for Johnston County, NC is 51.8.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Johnston County, NC is 4.9.
The graph shows Johnston 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.
Johnston County, NC population pyramid i.e. Johnston County population distrubution across age and gender. Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Here's the Johnston County, NC's male and female population across different age groups:

Age Group Population(Male) Population(Female) Total Population
Under 5 years 6,588 6,301 12,889
5 to 9 years 6,802 6,764 13,566
10 to 14 years 9,233 8,299 17,532
15 to 19 years 7,532 7,203 14,735
20 to 24 years 5,963 5,651 11,614
25 to 29 years 6,183 6,332 12,515
30 to 34 years 6,518 7,046 13,564
35 to 39 years 7,038 7,169 14,207
40 to 44 years 7,302 7,575 14,877
45 to 49 years 7,902 8,015 15,917
50 to 54 years 7,707 7,789 15,496
55 to 59 years 6,731 6,501 13,232
60 to 64 years 6,314 6,733 13,047
65 to 69 years 4,710 4,993 9,703
70 to 74 years 3,621 4,779 8,400
75 to 79 years 1,877 2,509 4,386
80 to 84 years 1,150 1,818 2,968
85 years and over 1,024 1,648 2,672
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Things to know

What is the population of Johnston County, NC under 18?

Johnston County's population under the age of 18 is 53,739, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 25.43% of the total resident population of Johnston County, NC.

What is the aging population in Johnston County, NC?

Johnston County's population aged 65 years and above was 28,129. As per the U.S. Census Bureau's American Community Survey, this population is 13.31% of the entire population.

References

Datasets

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

Key observations

The largest age group in Johnston County, NC was for the group of age 10-14 years with a population of 17,532 (8.30%), according to the 2021 American Community Survey. At the same time, the smallest age group in Johnston County, NC was the 85+ years with a population of 2,672 (1.26%). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

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

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

Context

The dataset tabulates the Johnston 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 Johnston 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.

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

Johnston County, NC 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 Johnston County, NC population pyramid, which represents the Johnston 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 Johnston County, NC, is 31.6.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Johnston County, NC, is 20.2.
  • Total dependency ratio for Johnston County, NC is 51.8.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Johnston County, NC is 4.9.

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

Explore related topics

Johnston County, NC Demographics Johnston County, NC 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