League City, TX population age distribution
A complete breakdown of League City'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 | 7,086 | 6.34% |
5 to 9 years | 9,596 | 8.58% |
10 to 14 years | 8,481 | 7.58% |
15 to 19 years | 8,526 | 7.62% |
20 to 24 years | 4,295 | 3.84% |
25 to 29 years | 7,342 | 6.56% |
30 to 34 years | 7,818 | 6.99% |
35 to 39 years | 8,512 | 7.61% |
40 to 44 years | 9,127 | 8.16% |
45 to 49 years | 9,345 | 8.36% |
50 to 54 years | 7,259 | 6.49% |
55 to 59 years | 6,911 | 6.18% |
60 to 64 years | 5,339 | 4.77% |
65 to 69 years | 4,597 | 4.11% |
70 to 74 years | 2,642 | 2.36% |
75 to 79 years | 1,899 | 1.7% |
80 to 84 years | 1,537 | 1.37% |
85 years and over | 1,535 | 1.37% |
TABLE OF CONTENTS
League City, TX population by age group
Sources: U.S. Census Bureau, American Community Survey (ACS) 2021

The largest age group in League City, TX was for the group of age 5-9 years with a population of 9,596 (8.58%), according to the 2021 American Community Survey.
At the same time, the smallest age group in League City, TX was the 85+ years with a population of 1,535 (1.37%).
League City, TX population by age cohort
To better understand the age distribution of League City, 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 | 30,640 | 27.39% |
18 to 64 years | 68,997 | 61.69% |
85 years and over | 12,210 | 10.92% |
Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:
- League City's population under 18 was 27.39%, compared to the 22.51% nationwide.
- League City's working population (between 18 and 64) was 61.69%, compared to 61.45% nationwide.
- League City's elderly or the senior population (over 65 age) was 10.92% as compared to 16.04% nationwide.
League City, TX population pyramid
Population pyramid for League City, 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 League City's population pyramid:
- Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for League City, TX, is 33.8.
- Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for League City, TX, is 16.4.
- Total dependency ratio for League City, TX is 50.2.
- Potential support ratio, which is the number of youth (working age population) per elderly, for League City, TX is 6.1.

Here's the League City, TX's male and female population across different age groups:
Age Group | Population(Male) | Population(Female) | Total Population |
---|---|---|---|
Under 5 years | 3,657 | 3,429 | 7,086 |
5 to 9 years | 5,161 | 4,435 | 9,596 |
10 to 14 years | 4,342 | 4,139 | 8,481 |
15 to 19 years | 4,526 | 4,000 | 8,526 |
20 to 24 years | 2,182 | 2,113 | 4,295 |
25 to 29 years | 3,837 | 3,505 | 7,342 |
30 to 34 years | 3,657 | 4,161 | 7,818 |
35 to 39 years | 3,737 | 4,775 | 8,512 |
40 to 44 years | 4,537 | 4,590 | 9,127 |
45 to 49 years | 4,741 | 4,604 | 9,345 |
50 to 54 years | 3,632 | 3,627 | 7,259 |
55 to 59 years | 3,318 | 3,593 | 6,911 |
60 to 64 years | 2,728 | 2,611 | 5,339 |
65 to 69 years | 2,263 | 2,334 | 4,597 |
70 to 74 years | 1,180 | 1,462 | 2,642 |
75 to 79 years | 860 | 1,039 | 1,899 |
80 to 84 years | 625 | 912 | 1,537 |
85 years and over | 810 | 725 | 1,535 |
Things to know
What is the population of League City, TX under 18?
League City's population under the age of 18 is 30,640, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 27.39% of the total resident population of League City, TX.
What is the aging population in League City, TX?
League City's population aged 65 years and above was 12,210. As per the U.S. Census Bureau's American Community Survey, this population is 10.92% of the entire population.
References
- U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates