Llano County, TX Population by Age

The median age in Llano County, TX is 57.5, as per 2019-2023 ACS 5 -Year Estimates. Of the total population, 12.91% were under the age of 15, 11.30% aged 15 to 29, 38.84% aged 30 to 64, 32.89% aged 65 to 84, and 4.06% were 85 years of age and older.
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Updated Feb 22, 2025

Llano County, TX population age distributions

A complete breakdown of Llano 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 817 3.71%
5 to 9 years 646 2.93%
10 to 14 years 1,380 6.27%
15 to 19 years 862 3.92%
20 to 24 years 828 3.76%
25 to 29 years 797 3.62%
30 to 34 years 842 3.83%
35 to 39 years 903 4.1%
40 to 44 years 892 4.05%
45 to 49 years 1,041 4.73%
50 to 54 years 1,238 5.62%
55 to 59 years 1,424 6.47%
60 to 64 years 2,209 10.04%
65 to 69 years 2,300 10.45%
70 to 74 years 2,262 10.28%
75 to 79 years 1,549 7.04%
80 to 84 years 1,128 5.12%
85 years and over 893 4.06%
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Llano County, TX population by age group

Key stats
4,533
Population under 25 years
3,434
Population aged 25-44
5,912
Population aged 45-64
8,132
Population aged 65+

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

FIGURE 1

Llano County, TX population by age group.

The largest age group is 65 to 69 years with a population of 2,300 (10.45% of the total population).

Source: U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates.

The largest age group in Llano County, TX was for the group of age 65 to 69 years with a population of 2,300 (10.45%), according to the 2019-2023 American Community Survey.

At the same time, the smallest age group in Llano County, TX was the 5 to 9 years with a population of 646 (2.93%).

Llano County, TX population by age cohort

To better understand the age distribution of Llano County, TX'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

Llano County, TX population by age cohort

The largest age group was 18 to 64 years with a population of 10,447 (47.46% of the total population).

Source: U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates.

Llano County, TX population by age cohort

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

Age Group Population % of Total Population
Under 18 years 3,432 15.59%
18 to 64 years 10,447 47.46%
65 years and over 8,132 36.95%
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Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:

  • Llano County 's population under 18 was 15.59%, compared to the 22.16% nationwide.
  • Llano County's working population (between 18 and 64) was 47.46%, compared to 61% nationwide.
  • Llano County's elderly or the senior population (over 65 age) was 36.95% as compared to 16.84% nationwide.

Llano County, TX population pyramid

Population pyramid for Llano County, TX 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 Llano County's population pyramid:

  • Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Llano County, TX, is 25.8.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Llano County, TX, is 73.7.
  • Total dependency ratio for Llano County, TX is 99.4.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Llano County, TX is 1.4.

FIGURE 3

Llano County, TX population pyramid

Llano County 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.

Llano County, TX population pyramid

Here's the Llano County, TX's male and female population across different age groups .

Age Group Population(Male) Population(Female) Total Population
Under 5 years 301 516 817
5 to 9 years 193 453 646
10 to 14 years 869 511 1,380
15 to 19 years 433 429 862
20 to 24 years 397 431 828
25 to 29 years 409 388 797
30 to 34 years 338 504 842
35 to 39 years 515 388 903
40 to 44 years 359 533 892
45 to 49 years 597 444 1,041
50 to 54 years 652 586 1,238
55 to 59 years 721 703 1,424
60 to 64 years 982 1,227 2,209
65 to 69 years 1,067 1,233 2,300
70 to 74 years 1,077 1,185 2,262
75 to 79 years 684 865 1,549
80 to 84 years 626 502 1,128
85 years and over 439 454 893
Exploring Llano County's Diversity? Request Customized Data Now!

Things to know

What is the population of Llano County, TX under 18?

Llano County's population under the age of 18 is 3,432, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 15.59% of the total resident population of Llano County, TX.

What is the aging population in Llano County, TX?

Llano County's population aged 65 years and above was 8,132. As per the U.S. Census Bureau's American Community Survey, this population is 36.95% of the entire population.

References

Datasets

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

Key observations

The largest age group in Llano County, TX was for the group of age 65 to 69 years years with a population of 2,300 (10.45%), according to the ACS 2019-2023 5-Year Estimates. At the same time, the smallest age group in Llano County, TX was the 5 to 9 years years with a population of 646 (2.93%). 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 Llano County is shown in this column.
  • % of Total Population: This column displays the population of each age group as a proportion of Llano 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 Llano County Population by Age. You can refer the same here

Llano County, TX Age Cohorts Dataset: Children, Working Adults, and Seniors in Llano 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 Llano 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 Llano 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 10,447 (47.46% 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 Llano County population analysis. Total expected values are 3 groups ( Children, Working Population and Senior Population).
  • Population: The population for the age cohort in Llano County is shown in the following column.
  • Percent of Total Population: The population as a percent of total population of the Llano 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 Llano County Population by Age. You can refer the same here

Llano County, TX 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 Llano County, TX population pyramid, which represents the Llano 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 Llano County, TX, is 25.8.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Llano County, TX, is 73.7.
  • Total dependency ratio for Llano County, TX is 99.4.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Llano County, TX is 1.4.
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 Llano County population analysis. Total expected values are 18 and are define above in the age groups section.
  • Population (Male): The male population in the Llano County for the selected age group is shown in the following column.
  • Population (Female): The female population in the Llano County for the selected age group is shown in the following column.
  • Total Population: The total population of the Llano 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 Llano 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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