Mercer Island, WA population age distribution
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 | 971 | 3.81% |
5 to 9 years | 1,850 | 7.25% |
10 to 14 years | 2,087 | 8.18% |
15 to 19 years | 1,592 | 6.24% |
20 to 24 years | 889 | 3.49% |
25 to 29 years | 1,180 | 4.63% |
30 to 34 years | 908 | 3.56% |
35 to 39 years | 1,341 | 5.26% |
40 to 44 years | 1,674 | 6.56% |
45 to 49 years | 2,259 | 8.86% |
50 to 54 years | 2,047 | 8.03% |
55 to 59 years | 2,009 | 7.88% |
60 to 64 years | 1,655 | 6.49% |
65 to 69 years | 1,403 | 5.5% |
70 to 74 years | 1,252 | 4.91% |
75 to 79 years | 886 | 3.47% |
80 to 84 years | 525 | 2.06% |
85 years and over | 978 | 3.83% |
TABLE OF CONTENTS
Mercer Island, WA population by age group
Sources: U.S. Census Bureau, American Community Survey (ACS) 2021
The largest age group in Mercer Island, WA was for the group of age 45-49 years with a population of 2,259 (8.86%), according to the 2021 American Community Survey.
At the same time, the smallest age group in Mercer Island, WA was the 80-84 years with a population of 525 (2.06%).
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
Here's the population for each of the three cohorts.
Age Group | Population | % of Total Population |
---|---|---|
Under 18 years | 6,003 | 23.54% |
18 to 64 years | 14,459 | 56.69% |
85 years and over | 5,044 | 19.78% |
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 23.54%, compared to the 22.51% nationwide.
- Mercer Island's working population (between 18 and 64) was 56.69%, compared to 61.45% nationwide.
- Mercer Island's elderly or the senior population (over 65 age) was 19.78% as compared to 16.04% 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 31.6.
- 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 32.4.
- Total dependency ratio for Mercer Island, WA is 64.0.
- Potential support ratio, which is the number of youth (working age population) per elderly, for Mercer Island, WA is 3.1.
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 | 400 | 571 | 971 |
5 to 9 years | 884 | 966 | 1,850 |
10 to 14 years | 1,094 | 993 | 2,087 |
15 to 19 years | 819 | 773 | 1,592 |
20 to 24 years | 470 | 419 | 889 |
25 to 29 years | 566 | 614 | 1,180 |
30 to 34 years | 421 | 487 | 908 |
35 to 39 years | 548 | 793 | 1,341 |
40 to 44 years | 828 | 846 | 1,674 |
45 to 49 years | 1,026 | 1,233 | 2,259 |
50 to 54 years | 1,017 | 1,030 | 2,047 |
55 to 59 years | 967 | 1,042 | 2,009 |
60 to 64 years | 718 | 937 | 1,655 |
65 to 69 years | 687 | 716 | 1,403 |
70 to 74 years | 623 | 629 | 1,252 |
75 to 79 years | 401 | 485 | 886 |
80 to 84 years | 239 | 286 | 525 |
85 years and over | 301 | 677 | 978 |
Things to know
What is the population of Mercer Island, WA under 18?
Mercer Island's population under the age of 18 is 6,003, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 23.54% 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 5,044. As per the U.S. Census Bureau's American Community Survey, this population is 19.78% of the entire population.
References
- U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates