Ottawa, KS Population by Age

The median age in Ottawa, KS is 35.5, as per 2021 ACS 5-Year Estimates. Of the total population, 19.35% were under the age of 15, 23.07% aged 15 to 29, 43.08% aged 30 to 64, 12.56% aged 65 to 84, and 1.95% were 85 years of age and older.
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Updated Sep 17, 2023

Ottawa, KS population age distribution

A complete breakdown of Ottawa'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 575 4.57%
5 to 9 years 1,118 8.88%
10 to 14 years 743 5.9%
15 to 19 years 1,099 8.73%
20 to 24 years 927 7.36%
25 to 29 years 879 6.98%
30 to 34 years 906 7.2%
35 to 39 years 727 5.77%
40 to 44 years 474 3.76%
45 to 49 years 665 5.28%
50 to 54 years 893 7.09%
55 to 59 years 1,083 8.6%
60 to 64 years 677 5.38%
65 to 69 years 702 5.57%
70 to 74 years 392 3.11%
75 to 79 years 316 2.51%
80 to 84 years 171 1.36%
85 years and over 245 1.95%
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Ottawa, KS population by age group

Key stats
4,462
Population under 25 years
2,986
Population aged 25-44
3,318
Population aged 45-64
1,826
Population aged 65+

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

The graph shows Ottawa'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
Ottawa, KS population by age group. The largest age group was 5-9 years with a poulation of 1,118 (8.88% of the total population). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

The largest age group in Ottawa, KS was for the group of age 5-9 years with a population of 1,118 (8.88%), according to the 2021 American Community Survey.

At the same time, the smallest age group in Ottawa, KS was the 80-84 years with a population of 171 (1.36%).

Ottawa, KS population by age cohort

To better understand the age distribution of Ottawa, KS'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 Ottawa'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.
Ottawa, KS 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 7,801 (61.95% 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 2,965 23.55%
18 to 64 years 7,801 61.95%
85 years and over 1,826 14.5%
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Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:

  • Ottawa's population under 18 was 23.55%, compared to the 22.51% nationwide.
  • Ottawa's working population (between 18 and 64) was 61.95%, compared to 61.45% nationwide.
  • Ottawa's elderly or the senior population (over 65 age) was 14.50% as compared to 16.04% nationwide.

Ottawa, KS population pyramid

Population pyramid for Ottawa, KS 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 Ottawa's population pyramid:

  • Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Ottawa, KS, is 29.2.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Ottawa, KS, is 21.9.
  • Total dependency ratio for Ottawa, KS is 51.2.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Ottawa, KS is 4.6.
The graph shows Ottawa'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.
Ottawa, KS population pyramid i.e. Ottawa population distrubution across age and gender. Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Here's the Ottawa, KS's male and female population across different age groups:

Age Group Population(Male) Population(Female) Total Population
Under 5 years 367 208 575
5 to 9 years 652 466 1,118
10 to 14 years 330 413 743
15 to 19 years 473 626 1,099
20 to 24 years 499 428 927
25 to 29 years 442 437 879
30 to 34 years 480 426 906
35 to 39 years 397 330 727
40 to 44 years 219 255 474
45 to 49 years 290 375 665
50 to 54 years 450 443 893
55 to 59 years 539 544 1,083
60 to 64 years 320 357 677
65 to 69 years 292 410 702
70 to 74 years 190 202 392
75 to 79 years 209 107 316
80 to 84 years 18 153 171
85 years and over 62 183 245
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Things to know

What is the population of Ottawa, KS under 18?

Ottawa's population under the age of 18 is 2,965, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 23.55% of the total resident population of Ottawa, KS.

What is the aging population in Ottawa, KS?

Ottawa's population aged 65 years and above was 1,826. As per the U.S. Census Bureau's American Community Survey, this population is 14.50% of the entire population.

References

Datasets

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

Key observations

The largest age group in Ottawa, KS was for the group of age 5-9 years with a population of 1,118 (8.88%), according to the 2021 American Community Survey. At the same time, the smallest age group in Ottawa, KS was the 80-84 years with a population of 171 (1.36%). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

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

Ottawa, KS Age Cohorts Dataset: Children, Working Adults, and Seniors in Ottawa - 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 Ottawa 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 Ottawa. 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.

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

Ottawa, KS 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 Ottawa, KS population pyramid, which represents the Ottawa 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 Ottawa, KS, is 29.2.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Ottawa, KS, is 21.9.
  • Total dependency ratio for Ottawa, KS is 51.2.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Ottawa, KS is 4.6.

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

About the author

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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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