Mercer Island, WA population age distributions
A complete breakdown of Mercer Island'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 | 1,030 | 4.04% |
| 5 to 9 years | 1,663 | 6.53% |
| 10 to 14 years | 1,933 | 7.59% |
| 15 to 19 years | 1,906 | 7.49% |
| 20 to 24 years | 803 | 3.15% |
| 25 to 29 years | 1,198 | 4.7% |
| 30 to 34 years | 920 | 3.61% |
| 35 to 39 years | 1,512 | 5.94% |
| 40 to 44 years | 1,605 | 6.3% |
| 45 to 49 years | 2,018 | 7.92% |
| 50 to 54 years | 2,298 | 9.02% |
| 55 to 59 years | 1,832 | 7.19% |
| 60 to 64 years | 1,541 | 6.05% |
| 65 to 69 years | 1,431 | 5.62% |
| 70 to 74 years | 1,171 | 4.6% |
| 75 to 79 years | 906 | 3.56% |
| 80 to 84 years | 644 | 2.53% |
| 85 years and over | 1,053 | 4.14% |
TABLE OF CONTENTS
Mercer Island, WA population by age group
Sources: U.S. Census Bureau, American Community Survey (ACS) 2018-2022
FIGURE 1
Mercer Island, WA population by age group.
The largest age group is 50 to 54 years with a population of 2,298 (9.02% of the total population).
The largest age group in Mercer Island, WA was for the group of age 50 to 54 years with a population of 2,298 (9.02%), according to the 2018-2022 American Community Survey.
At the same time, the smallest age group in Mercer Island, WA was the 80 to 84 years with a population of 644 (2.53%).
Mercer Island, WA population by age cohort
To better understand the age distribution of Mercer Island, 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
Mercer Island, WA population by age cohort
The largest age group was 18 to 64 years with a population of 14,377 (56.46% of the total population).
Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:
- Mercer Island 's population under 18 was 23.10%, compared to the 22.11% nationwide.
- Mercer Island's working population (between 18 and 64) was 56.46%, compared to 61.36% nationwide.
- Mercer Island's elderly or the senior population (over 65 age) was 20.44% as compared to 16.53% nationwide.
Mercer Island, WA population pyramid
Population pyramid for Mercer Island, 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 Mercer Island's population pyramid:
- Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Mercer Island, WA, is 29.6.
- Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Mercer Island, WA, is 33.3.
- Total dependency ratio for Mercer Island, WA is 62.9.
- Potential support ratio, which is the number of youth (working age population) per elderly, for Mercer Island, WA is 3.0.
FIGURE 3
Mercer Island, WA population pyramid
Mercer Island population distrubution across age and gender. A wide base suggests population increase, narrow base indicates declining birth rates.
Mercer Island, WA population pyramid
Here's the Mercer Island, WA's male and female population across different age groups .
| Age Group | Population(Male) | Population(Female) | Total Population |
|---|---|---|---|
| Under 5 years | 427 | 603 | 1,030 |
| 5 to 9 years | 793 | 870 | 1,663 |
| 10 to 14 years | 969 | 964 | 1,933 |
| 15 to 19 years | 929 | 977 | 1,906 |
| 20 to 24 years | 446 | 357 | 803 |
| 25 to 29 years | 614 | 584 | 1,198 |
| 30 to 34 years | 441 | 479 | 920 |
| 35 to 39 years | 595 | 917 | 1,512 |
| 40 to 44 years | 815 | 790 | 1,605 |
| 45 to 49 years | 939 | 1,079 | 2,018 |
| 50 to 54 years | 1,120 | 1,178 | 2,298 |
| 55 to 59 years | 935 | 897 | 1,832 |
| 60 to 64 years | 627 | 914 | 1,541 |
| 65 to 69 years | 752 | 679 | 1,431 |
| 70 to 74 years | 543 | 628 | 1,171 |
| 75 to 79 years | 379 | 527 | 906 |
| 80 to 84 years | 333 | 311 | 644 |
| 85 years and over | 351 | 702 | 1,053 |
Things to know
What is the population of Mercer Island, WA under 18?
Mercer Island's population under the age of 18 is 5,882, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 23.10% of the total resident population of Mercer Island, WA.
What is the aging population in Mercer Island, WA?
Mercer Island's population aged 65 years and above was 5,205. As per the U.S. Census Bureau's American Community Survey, this population is 20.44% of the entire population.
References
- U.S. Census Bureau American Community Survey (ACS) 2018-2022 5-Year Estimates