Thurston County, WA population age distributions
A complete breakdown of Thurston 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 | 16,139 | 5.44% |
| 5 to 9 years | 17,762 | 5.99% |
| 10 to 14 years | 18,109 | 6.1% |
| 15 to 19 years | 16,525 | 5.57% |
| 20 to 24 years | 16,675 | 5.62% |
| 25 to 29 years | 20,644 | 6.96% |
| 30 to 34 years | 21,806 | 7.35% |
| 35 to 39 years | 21,388 | 7.21% |
| 40 to 44 years | 21,082 | 7.11% |
| 45 to 49 years | 17,706 | 5.97% |
| 50 to 54 years | 17,714 | 5.97% |
| 55 to 59 years | 17,120 | 5.77% |
| 60 to 64 years | 19,646 | 6.62% |
| 65 to 69 years | 17,518 | 5.91% |
| 70 to 74 years | 16,065 | 5.42% |
| 75 to 79 years | 9,675 | 3.26% |
| 80 to 84 years | 5,497 | 1.85% |
| 85 years and over | 5,569 | 1.88% |
TABLE OF CONTENTS
Thurston County, WA population by age group
Sources: U.S. Census Bureau, American Community Survey (ACS) 2019-2023
FIGURE 1
Thurston County, WA population by age group.
The largest age group is 30 to 34 years with a population of 21,806 (7.35% of the total population).
The largest age group in Thurston County, WA was for the group of age 30 to 34 years with a population of 21,806 (7.35%), according to the 2019-2023 American Community Survey.
At the same time, the smallest age group in Thurston County, WA was the 80 to 84 years with a population of 5,497 (1.85%).
Thurston County, WA population by age cohort
To better understand the age distribution of Thurston County, WA'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
Thurston County, WA population by age cohort
The largest age group was 18 to 64 years with a population of 179,723 (60.59% of the total population).
Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:
- Thurston County 's population under 18 was 21.10%, compared to the 22.16% nationwide.
- Thurston County's working population (between 18 and 64) was 60.59%, compared to 61% nationwide.
- Thurston County's elderly or the senior population (over 65 age) was 18.31% as compared to 16.84% nationwide.
Thurston County, WA population pyramid
Population pyramid for Thurston County, WA 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 Thurston County's population pyramid:
- Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Thurston County, WA, is 27.3.
- Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Thurston County, WA, is 28.5.
- Total dependency ratio for Thurston County, WA is 55.9.
- Potential support ratio, which is the number of youth (working age population) per elderly, for Thurston County, WA is 3.5.
FIGURE 3
Thurston County, WA population pyramid
Thurston County population distrubution across age and gender. A wide base suggests population increase, narrow base indicates declining birth rates.
Thurston County, WA population pyramid
Here's the Thurston County, WA's male and female population across different age groups .
| Age Group | Population(Male) | Population(Female) | Total Population |
|---|---|---|---|
| Under 5 years | 8,401 | 7,738 | 16,139 |
| 5 to 9 years | 8,765 | 8,997 | 17,762 |
| 10 to 14 years | 9,770 | 8,339 | 18,109 |
| 15 to 19 years | 8,484 | 8,041 | 16,525 |
| 20 to 24 years | 8,372 | 8,303 | 16,675 |
| 25 to 29 years | 10,571 | 10,073 | 20,644 |
| 30 to 34 years | 10,957 | 10,849 | 21,806 |
| 35 to 39 years | 11,167 | 10,221 | 21,388 |
| 40 to 44 years | 10,099 | 10,983 | 21,082 |
| 45 to 49 years | 8,771 | 8,935 | 17,706 |
| 50 to 54 years | 8,817 | 8,897 | 17,714 |
| 55 to 59 years | 8,334 | 8,786 | 17,120 |
| 60 to 64 years | 9,189 | 10,457 | 19,646 |
| 65 to 69 years | 7,937 | 9,581 | 17,518 |
| 70 to 74 years | 7,535 | 8,530 | 16,065 |
| 75 to 79 years | 4,231 | 5,444 | 9,675 |
| 80 to 84 years | 2,496 | 3,001 | 5,497 |
| 85 years and over | 2,023 | 3,546 | 5,569 |
Things to know
What is the population of Thurston County, WA under 18?
Thurston County's population under the age of 18 is 62,593, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 21.10% of the total resident population of Thurston County, WA.
What is the aging population in Thurston County, WA?
Thurston County's population aged 65 years and above was 54,324. As per the U.S. Census Bureau's American Community Survey, this population is 18.31% of the entire population.
References
- U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates