Silver Bow County, MT Population by Age

The median age in Silver Bow County, MT is 40.3, as per 2019-2023 ACS 5 -Year Estimates. Of the total population, 17.22% were under the age of 15, 20.92% aged 15 to 29, 42.60% aged 30 to 64, 17.42% aged 65 to 84, and 1.82% were 85 years of age and older.
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Updated Feb 22, 2025

Silver Bow County, MT population age distributions

A complete breakdown of Silver Bow 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 1,993 5.6%
5 to 9 years 1,947 5.47%
10 to 14 years 2,190 6.15%
15 to 19 years 2,175 6.11%
20 to 24 years 2,901 8.15%
25 to 29 years 2,370 6.66%
30 to 34 years 2,046 5.75%
35 to 39 years 2,065 5.8%
40 to 44 years 2,243 6.3%
45 to 49 years 1,991 5.59%
50 to 54 years 1,939 5.45%
55 to 59 years 1,978 5.56%
60 to 64 years 2,902 8.15%
65 to 69 years 2,617 7.35%
70 to 74 years 1,555 4.37%
75 to 79 years 1,286 3.61%
80 to 84 years 745 2.09%
85 years and over 646 1.82%
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Silver Bow County, MT population by age group

Key stats
11,206
Population under 25 years
8,724
Population aged 25-44
8,810
Population aged 45-64
6,849
Population aged 65+

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

FIGURE 1

Silver Bow County, MT population by age group.

The largest age group is 60 to 64 years with a population of 2,902 (8.15% of the total population).

0-45-910-1415-1920-2425-2930-3435-3940-4445-4950-5455-5960-6465-6970-7475-7980-8485+0%1%2%3%4%5%6%7%8%
Source: U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates.

The largest age group in Silver Bow County, MT was for the group of age 60 to 64 years with a population of 2,902 (8.15%), according to the 2019-2023 American Community Survey.

At the same time, the smallest age group in Silver Bow County, MT was the 85 years and over with a population of 646 (1.82%).

Silver Bow County, MT population by age cohort

To better understand the age distribution of Silver Bow County, MT'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

Silver Bow County, MT population by age cohort

The largest age group was 18 to 64 years with a population of 21,406 (60.15% of the total population).

20.61%60.15%19.24%Under 18 years18-64 years65 years and over
Source: U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates.

Silver Bow County, MT population by age cohort

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

Age Group Population % of Total Population
Under 18 years 7,334 20.61%
18 to 64 years 21,406 60.15%
65 years and over 6,849 19.24%
Exploring Silver Bow 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:

  • Silver Bow County 's population under 18 was 20.61%, compared to the 22.16% nationwide.
  • Silver Bow County's working population (between 18 and 64) was 60.15%, compared to 61% nationwide.
  • Silver Bow County's elderly or the senior population (over 65 age) was 19.24% as compared to 16.84% nationwide.

Silver Bow County, MT population pyramid

Population pyramid for Silver Bow County, MT 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 Silver Bow County's population pyramid:

  • Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Silver Bow County, MT, is 27.1.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Silver Bow County, MT, is 30.3.
  • Total dependency ratio for Silver Bow County, MT is 57.4.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Silver Bow County, MT is 3.3.

FIGURE 3

Silver Bow County, MT population pyramid

Silver Bow County population distrubution across age and gender. A wide base suggests population increase, narrow base indicates declining birth rates.

0-45-910-1415-1920-2425-2930-3435-3940-4445-4950-5455-5960-6465-6970-7475-7980-8485+10981102111712011598119510411208112710869688911616128571474028414389584510739741303117510058571116905971108712861332841546461503Male PopulationFemale Population
Source: U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates.

Silver Bow County, MT population pyramid

Here's the Silver Bow County, MT's male and female population across different age groups .

Age Group Population(Male) Population(Female) Total Population
Under 5 years 1,098 895 1,993
5 to 9 years 1,102 845 1,947
10 to 14 years 1,117 1,073 2,190
15 to 19 years 1,201 974 2,175
20 to 24 years 1,598 1,303 2,901
25 to 29 years 1,195 1,175 2,370
30 to 34 years 1,041 1,005 2,046
35 to 39 years 1,208 857 2,065
40 to 44 years 1,127 1,116 2,243
45 to 49 years 1,086 905 1,991
50 to 54 years 968 971 1,939
55 to 59 years 891 1,087 1,978
60 to 64 years 1,616 1,286 2,902
65 to 69 years 1,285 1,332 2,617
70 to 74 years 714 841 1,555
75 to 79 years 740 546 1,286
80 to 84 years 284 461 745
85 years and over 143 503 646
Exploring Silver Bow County's Diversity? Request Customized Data Now!

Things to know

What is the population of Silver Bow County, MT under 18?

Silver Bow County's population under the age of 18 is 7,334, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 20.61% of the total resident population of Silver Bow County, MT.

What is the aging population in Silver Bow County, MT?

Silver Bow County's population aged 65 years and above was 6,849. As per the U.S. Census Bureau's American Community Survey, this population is 19.24% of the entire population.

References

Datasets

Explore datasets by year of publication.
2025
Silver Bow County, MT Age Group Population Dataset: A Complete Breakdown of Silver Bow County 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 Silver Bow 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 Silver Bow County. The dataset can be utilized to understand the population distribution of Silver Bow County by age. For example, using this dataset, we can identify the largest age group in Silver Bow County.

Key observations

The largest age group in Silver Bow County, MT was for the group of age 60 to 64 years years with a population of 2,902 (8.15%), according to the ACS 2019-2023 5-Year Estimates. At the same time, the smallest age group in Silver Bow County, MT was the 85 years and over years with a population of 646 (1.82%). 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 Silver Bow County is shown in this column.
  • % of Total Population: This column displays the population of each age group as a proportion of Silver Bow 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 Silver Bow County Population by Age. You can refer the same here

Silver Bow County, MT Age Cohorts Dataset: Children, Working Adults, and Seniors in Silver Bow County - 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 Silver Bow 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 Silver Bow 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 18 to 64 years with a poulation of 21,406 (60.15% 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 Silver Bow County population analysis. Total expected values are 3 groups ( Children, Working Population and Senior Population).
  • Population: The population for the age cohort in Silver Bow County is shown in the following column.
  • Percent of Total Population: The population as a percent of total population of the Silver Bow 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 Silver Bow County Population by Age. You can refer the same here

Silver Bow County, MT 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 Silver Bow County, MT population pyramid, which represents the Silver Bow County 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 Silver Bow County, MT, is 27.1.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Silver Bow County, MT, is 30.3.
  • Total dependency ratio for Silver Bow County, MT is 57.4.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Silver Bow County, MT is 3.3.
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 Silver Bow County population analysis. Total expected values are 18 and are define above in the age groups section.
  • Population (Male): The male population in the Silver Bow County for the selected age group is shown in the following column.
  • Population (Female): The female population in the Silver Bow County for the selected age group is shown in the following column.
  • Total Population: The total population of the Silver Bow 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 Silver Bow 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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