Bexar County, TX population age distribution
A complete breakdown of Bexar 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 | 136,261 | 6.85% |
5 to 9 years | 140,771 | 7.07% |
10 to 14 years | 145,909 | 7.33% |
15 to 19 years | 144,842 | 7.28% |
20 to 24 years | 143,892 | 7.23% |
25 to 29 years | 157,509 | 7.91% |
30 to 34 years | 155,315 | 7.8% |
35 to 39 years | 144,517 | 7.26% |
40 to 44 years | 131,743 | 6.62% |
45 to 49 years | 123,984 | 6.23% |
50 to 54 years | 114,373 | 5.75% |
55 to 59 years | 114,727 | 5.76% |
60 to 64 years | 96,801 | 4.86% |
65 to 69 years | 82,978 | 4.17% |
70 to 74 years | 63,814 | 3.21% |
75 to 79 years | 41,154 | 2.07% |
80 to 84 years | 24,875 | 1.25% |
85 years and over | 27,057 | 1.36% |
TABLE OF CONTENTS
Bexar County, TX population by age group
Sources: U.S. Census Bureau, American Community Survey (ACS) 2021

The largest age group in Bexar County, TX was for the group of age 25-29 years with a population of 157,509 (7.91%), according to the 2021 American Community Survey.
At the same time, the smallest age group in Bexar County, TX was the 80-84 years with a population of 24,875 (1.25%).
Bexar County, TX population by age cohort
To better understand the age distribution of Bexar 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

Here's the population for each of the three cohorts.
Age Group | Population | % of Total Population |
---|---|---|
Under 18 years | 508,656 | 25.55% |
18 to 64 years | 1,241,988 | 62.4% |
85 years and over | 239,878 | 12.05% |
Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:
- Bexar County's population under 18 was 25.55%, compared to the 22.51% nationwide.
- Bexar County's working population (between 18 and 64) was 62.40%, compared to 61.45% nationwide.
- Bexar County's elderly or the senior population (over 65 age) was 12.05% as compared to 16.04% nationwide.
Bexar County, TX population pyramid
Population pyramid for Bexar 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 Bexar County's population pyramid:
- Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Bexar County, TX, is 31.9.
- Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Bexar County, TX, is 18.1.
- Total dependency ratio for Bexar County, TX is 49.9.
- Potential support ratio, which is the number of youth (working age population) per elderly, for Bexar County, TX is 5.5.

Here's the Bexar County, TX's male and female population across different age groups:
Age Group | Population(Male) | Population(Female) | Total Population |
---|---|---|---|
Under 5 years | 69,390 | 66,871 | 136,261 |
5 to 9 years | 73,548 | 67,223 | 140,771 |
10 to 14 years | 72,772 | 73,137 | 145,909 |
15 to 19 years | 74,441 | 70,401 | 144,842 |
20 to 24 years | 73,948 | 69,944 | 143,892 |
25 to 29 years | 80,592 | 76,917 | 157,509 |
30 to 34 years | 79,293 | 76,022 | 155,315 |
35 to 39 years | 72,681 | 71,836 | 144,517 |
40 to 44 years | 66,610 | 65,133 | 131,743 |
45 to 49 years | 61,186 | 62,798 | 123,984 |
50 to 54 years | 56,374 | 57,999 | 114,373 |
55 to 59 years | 56,513 | 58,214 | 114,727 |
60 to 64 years | 45,110 | 51,691 | 96,801 |
65 to 69 years | 38,154 | 44,824 | 82,978 |
70 to 74 years | 28,944 | 34,870 | 63,814 |
75 to 79 years | 17,266 | 23,888 | 41,154 |
80 to 84 years | 10,074 | 14,801 | 24,875 |
85 years and over | 10,404 | 16,653 | 27,057 |
Things to know
What is the population of Bexar County, TX under 18?
Bexar County's population under the age of 18 is 508,656, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 25.55% of the total resident population of Bexar County, TX.
What is the aging population in Bexar County, TX?
Bexar County's population aged 65 years and above was 239,878. As per the U.S. Census Bureau's American Community Survey, this population is 12.05% of the entire population.
References
- U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates