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Decatur township, Mifflin County, Pennsylvania Population by Age

The median age in Decatur township, Mifflin County, Pennsylvania is 49.2, as per 2019-2023 ACS 5 -Year Estimates. Of the total population, 19.90% were under the age of 15, 14.42% aged 15 to 29, 43.80% aged 30 to 64, 20.27% aged 65 to 84, and 1.62% were 85 years of age and older.
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By Neilsberg Research
Updated Feb 22, 2025

Decatur township, Mifflin County, Pennsylvania population age distributions

A complete breakdown of Decatur township'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 147 4.97%
5 to 9 years 172 5.81%
10 to 14 years 270 9.12%
15 to 19 years 148 5%
20 to 24 years 138 4.66%
25 to 29 years 141 4.76%
30 to 34 years 57 1.93%
35 to 39 years 197 6.66%
40 to 44 years 86 2.91%
45 to 49 years 174 5.88%
50 to 54 years 209 7.06%
55 to 59 years 291 9.83%
60 to 64 years 282 9.53%
65 to 69 years 269 9.09%
70 to 74 years 146 4.93%
75 to 79 years 141 4.76%
80 to 84 years 44 1.49%
85 years and over 48 1.62%
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Decatur township, Mifflin County, Pennsylvania population by age group

Key stats
875
Population under 25 years
481
Population aged 25-44
956
Population aged 45-64
648
Population aged 65+

Sources: U.S. Census Bureau, American Community Survey (ACS) 2019-2023

FIGURE 1

Decatur township, Mifflin County, Pennsylvania population by age group.

The largest age group is 55 to 59 years with a population of 291 (9.83% of the total population).

Source: U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates.
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The largest age group in Decatur township, Mifflin County, Pennsylvania was for the group of age 55 to 59 years with a population of 291 (9.83%), according to the 2019-2023 American Community Survey.

At the same time, the smallest age group in Decatur township, Mifflin County, Pennsylvania was the 80 to 84 years with a population of 44 (1.49%).

Decatur township, Mifflin County, Pennsylvania population by age cohort

To better understand the age distribution of Decatur township, Mifflin County, Pennsylvania'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

Decatur township, Mifflin County, Pennsylvania population by age cohort

The largest age group was 18 to 64 years with a population of 1,628 (55% of the total population).

Source: U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates.
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Decatur township, Mifflin County, Pennsylvania population by age cohort

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

Age Group Population % of Total Population
Under 18 years 684 23.11%
18 to 64 years 1,628 55%
65 years and over 648 21.89%
Exploring Decatur township's Diversity? Request Customized Data Now!

Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:

  • Decatur township 's population under 18 was 23.11%, compared to the 22.16% nationwide.
  • Decatur township's working population (between 18 and 64) was 55%, compared to 61% nationwide.
  • Decatur township's elderly or the senior population (over 65 age) was 21.89% as compared to 16.84% nationwide.

Decatur township, Mifflin County, Pennsylvania population pyramid

Population pyramid for Decatur township, Mifflin County, Pennsylvania 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 Decatur township's population pyramid:

  • Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Decatur township, Mifflin County, Pennsylvania, is 34.2.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Decatur township, Mifflin County, Pennsylvania, is 37.6.
  • Total dependency ratio for Decatur township, Mifflin County, Pennsylvania is 71.8.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Decatur township, Mifflin County, Pennsylvania is 2.7.

FIGURE 3

Decatur township, Mifflin County, Pennsylvania population pyramid

Decatur township 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) 2019-2023 5-Year Estimates.
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Decatur township, Mifflin County, Pennsylvania population pyramid

Here's the Decatur township, Mifflin County, Pennsylvania's male and female population across different age groups .

Age Group Population(Male) Population(Female) Total Population
Under 5 years 105 42 147
5 to 9 years 83 89 172
10 to 14 years 167 103 270
15 to 19 years 46 102 148
20 to 24 years 116 22 138
25 to 29 years 75 66 141
30 to 34 years 24 33 57
35 to 39 years 65 132 197
40 to 44 years 39 47 86
45 to 49 years 82 92 174
50 to 54 years 116 93 209
55 to 59 years 123 168 291
60 to 64 years 149 133 282
65 to 69 years 134 135 269
70 to 74 years 90 56 146
75 to 79 years 61 80 141
80 to 84 years 20 24 44
85 years and over 16 32 48
Exploring Decatur township's Diversity? Request Customized Data Now!

Things to know

What is the population of Decatur township, Mifflin County, Pennsylvania under 18?

Decatur township's population under the age of 18 is 684, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 23.11% of the total resident population of Decatur township, Mifflin County, Pennsylvania.

What is the aging population in Decatur township, Mifflin County, Pennsylvania?

Decatur township's population aged 65 years and above was 648. As per the U.S. Census Bureau's American Community Survey, this population is 21.89% of the entire population.

References

Datasets

Explore datasets by year of publication.
2025
Decatur township, Mifflin County, Pennsylvania Age Group Population Dataset: A Complete Breakdown of Decatur township Age Demographics from 0 to 85 Years and Over, Distributed Across 18 Age Groups // 2025 Edition
Last updated February 22, 2025
ACS
Free
Neilsberg
CSV, JSON
2019-2023
CC BY 4.0
About this dataset

Context

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

Key observations

The largest age group in Decatur township, Mifflin County, Pennsylvania was for the group of age 55 to 59 years years with a population of 291 (9.83%), according to the ACS 2019-2023 5-Year Estimates. At the same time, the smallest age group in Decatur township, Mifflin County, Pennsylvania was the 80 to 84 years years with a population of 44 (1.49%). Source: U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates

Content

When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2019-2023 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 Decatur township is shown in this column.
  • % of Total Population: This column displays the population of each age group as a proportion of Decatur township 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 Decatur township Population by Age. You can refer the same here

Decatur township, Mifflin County, Pennsylvania Age Cohorts Dataset: Children, Working Adults, and Seniors in Decatur township - Population and Percentage Analysis // 2025 Edition
Last updated February 22, 2025
ACS
Free
Neilsberg
CSV, JSON
2019-2023
CC BY 4.0
About this dataset

Context

The dataset tabulates the Decatur township 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 Decatur township. 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 1,628 (55% of the total population). Source: U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates.

Content

When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2019-2023 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 Decatur township population analysis. Total expected values are 3 groups ( Children, Working Population and Senior Population).
  • Population: The population for the age cohort in Decatur township is shown in the following column.
  • Percent of Total Population: The population as a percent of total population of the Decatur township 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 Decatur township Population by Age. You can refer the same here

Decatur township, Mifflin County, Pennsylvania Population Pyramid Dataset: Age Groups, Male and Female Population, and Total Population for Demographics Analysis // 2025 Edition
Last updated February 22, 2025
ACS
Free
Neilsberg
CSV, JSON
2019-2023
CC BY 4.0
About this dataset

Context

The dataset tabulates the data for the Decatur township, Mifflin County, Pennsylvania population pyramid, which represents the Decatur township population distribution across age and gender, using estimates from the U.S. Census Bureau American Community Survey (ACS) 2019-2023 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 Decatur township, Mifflin County, Pennsylvania, is 34.2.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Decatur township, Mifflin County, Pennsylvania, is 37.6.
  • Total dependency ratio for Decatur township, Mifflin County, Pennsylvania is 71.8.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Decatur township, Mifflin County, Pennsylvania is 2.7.
Content

When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2019-2023 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 Decatur township population analysis. Total expected values are 18 and are define above in the age groups section.
  • Population (Male): The male population in the Decatur township for the selected age group is shown in the following column.
  • Population (Female): The female population in the Decatur township for the selected age group is shown in the following column.
  • Total Population: The total population of the Decatur township 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 Decatur township 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

Decatur township, Mifflin County, Pennsylvania Demographics Decatur township, Mifflin County, Pennsylvania Population

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Collection 5 Resources