Sioux County, IA Population by Age

The median age in Sioux County, IA is 33.8, as per 2021 ACS 5-Year Estimates. Of the total population, 22.73% were under the age of 15, 23.12% aged 15 to 29, 38.73% aged 30 to 64, 13.27% aged 65 to 84, and 2.15% were 85 years of age and older.
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Updated Sep 17, 2023

Sioux County, IA population age distribution

A complete breakdown of Sioux 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 2,566 7.2%
5 to 9 years 2,628 7.37%
10 to 14 years 2,907 8.15%
15 to 19 years 3,235 9.08%
20 to 24 years 3,144 8.82%
25 to 29 years 1,864 5.23%
30 to 34 years 1,896 5.32%
35 to 39 years 2,113 5.93%
40 to 44 years 2,258 6.33%
45 to 49 years 1,590 4.46%
50 to 54 years 1,747 4.9%
55 to 59 years 2,118 5.94%
60 to 64 years 2,085 5.85%
65 to 69 years 1,564 4.39%
70 to 74 years 1,322 3.71%
75 to 79 years 1,076 3.02%
80 to 84 years 768 2.15%
85 years and over 766 2.15%
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Sioux County, IA population by age group

Key stats
14,480
Population under 25 years
8,131
Population aged 25-44
7,540
Population aged 45-64
5,496
Population aged 65+

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

The graph shows Sioux 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
Sioux County, IA population by age group. The largest age group was 15-19 years with a poulation of 3,235 (9.08% of the total population). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

The largest age group in Sioux County, IA was for the group of age 15-19 years with a population of 3,235 (9.08%), according to the 2021 American Community Survey.

At the same time, the smallest age group in Sioux County, IA was the 85+ years with a population of 766 (2.15%).

Sioux County, IA population by age cohort

To better understand the age distribution of Sioux County, IA'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 Sioux 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.
Sioux County, IA 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 20,392 (57.21% 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 9,759 27.38%
18 to 64 years 20,392 57.21%
85 years and over 5,496 15.42%
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Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:

  • Sioux County's population under 18 was 27.38%, compared to the 22.51% nationwide.
  • Sioux County's working population (between 18 and 64) was 57.21%, compared to 61.45% nationwide.
  • Sioux County's elderly or the senior population (over 65 age) was 15.42% as compared to 16.04% nationwide.

Sioux County, IA population pyramid

Population pyramid for Sioux County, IA 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 Sioux County's population pyramid:

  • Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Sioux County, IA, is 36.7.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Sioux County, IA, is 24.9.
  • Total dependency ratio for Sioux County, IA is 61.7.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Sioux County, IA is 4.0.
The graph shows Sioux 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.
Sioux County, IA population pyramid i.e. Sioux County population distrubution across age and gender. Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Here's the Sioux County, IA's male and female population across different age groups:

Age Group Population(Male) Population(Female) Total Population
Under 5 years 1,330 1,236 2,566
5 to 9 years 1,487 1,141 2,628
10 to 14 years 1,334 1,573 2,907
15 to 19 years 1,667 1,568 3,235
20 to 24 years 1,595 1,549 3,144
25 to 29 years 997 867 1,864
30 to 34 years 969 927 1,896
35 to 39 years 1,137 976 2,113
40 to 44 years 1,201 1,057 2,258
45 to 49 years 814 776 1,590
50 to 54 years 895 852 1,747
55 to 59 years 973 1,145 2,118
60 to 64 years 1,137 948 2,085
65 to 69 years 805 759 1,564
70 to 74 years 636 686 1,322
75 to 79 years 454 622 1,076
80 to 84 years 302 466 768
85 years and over 279 487 766
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Things to know

What is the population of Sioux County, IA under 18?

Sioux County's population under the age of 18 is 9,759, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 27.38% of the total resident population of Sioux County, IA.

What is the aging population in Sioux County, IA?

Sioux County's population aged 65 years and above was 5,496. As per the U.S. Census Bureau's American Community Survey, this population is 15.42% of the entire population.

References

Datasets

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

Key observations

The largest age group in Sioux County, IA was for the group of age 15-19 years with a population of 3,235 (9.08%), according to the 2021 American Community Survey. At the same time, the smallest age group in Sioux County, IA was the 85+ years with a population of 766 (2.15%). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

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

Sioux County, IA Age Cohorts Dataset: Children, Working Adults, and Seniors in Sioux 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 Sioux 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 Sioux 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.

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

Sioux County, IA 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 Sioux County, IA population pyramid, which represents the Sioux 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 Sioux County, IA, is 36.7.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Sioux County, IA, is 24.9.
  • Total dependency ratio for Sioux County, IA is 61.7.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Sioux County, IA is 4.0.

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