Rock Island, WA population age distributions
A complete breakdown of Rock 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 | 73 | 5.8% |
| 5 to 9 years | 88 | 6.99% |
| 10 to 14 years | 116 | 9.21% |
| 15 to 19 years | 134 | 10.64% |
| 20 to 24 years | 83 | 6.59% |
| 25 to 29 years | 90 | 7.15% |
| 30 to 34 years | 47 | 3.73% |
| 35 to 39 years | 79 | 6.27% |
| 40 to 44 years | 102 | 8.1% |
| 45 to 49 years | 109 | 8.66% |
| 50 to 54 years | 67 | 5.32% |
| 55 to 59 years | 99 | 7.86% |
| 60 to 64 years | 26 | 2.07% |
| 65 to 69 years | 21 | 1.67% |
| 70 to 74 years | 48 | 3.81% |
| 75 to 79 years | 24 | 1.91% |
| 80 to 84 years | 23 | 1.83% |
| 85 years and over | 30 | 2.38% |
TABLE OF CONTENTS
Rock Island, WA population by age group
Sources: U.S. Census Bureau, American Community Survey (ACS) 2018-2022
FIGURE 1
Rock Island, WA population by age group.
The largest age group is 15 to 19 years with a population of 134 (10.64% of the total population).
The largest age group in Rock Island, WA was for the group of age 15 to 19 years with a population of 134 (10.64%), according to the 2018-2022 American Community Survey.
At the same time, the smallest age group in Rock Island, WA was the 65 to 69 years with a population of 21 (1.67%).
Rock Island, WA population by age cohort
To better understand the age distribution of Rock 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
Rock Island, WA population by age cohort
The largest age group was 18 to 64 years with a population of 743 (59.02% of the total population).
Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:
- Rock Island 's population under 18 was 29.39%, compared to the 22.11% nationwide.
- Rock Island's working population (between 18 and 64) was 59.02%, compared to 61.36% nationwide.
- Rock Island's elderly or the senior population (over 65 age) was 11.60% as compared to 16.53% nationwide.
Rock Island, WA population pyramid
Population pyramid for Rock 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 Rock Island's population pyramid:
- Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Rock Island, WA, is 33.1.
- Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Rock Island, WA, is 17.5.
- Total dependency ratio for Rock Island, WA is 50.6.
- Potential support ratio, which is the number of youth (working age population) per elderly, for Rock Island, WA is 5.7.
FIGURE 3
Rock Island, WA population pyramid
Rock Island population distrubution across age and gender. A wide base suggests population increase, narrow base indicates declining birth rates.
Rock Island, WA population pyramid
Here's the Rock Island, WA's male and female population across different age groups .
| Age Group | Population(Male) | Population(Female) | Total Population |
|---|---|---|---|
| Under 5 years | 19 | 54 | 73 |
| 5 to 9 years | 34 | 54 | 88 |
| 10 to 14 years | 32 | 84 | 116 |
| 15 to 19 years | 62 | 72 | 134 |
| 20 to 24 years | 62 | 21 | 83 |
| 25 to 29 years | 46 | 44 | 90 |
| 30 to 34 years | 39 | 8 | 47 |
| 35 to 39 years | 22 | 57 | 79 |
| 40 to 44 years | 35 | 67 | 102 |
| 45 to 49 years | 42 | 67 | 109 |
| 50 to 54 years | 37 | 30 | 67 |
| 55 to 59 years | 53 | 46 | 99 |
| 60 to 64 years | 12 | 14 | 26 |
| 65 to 69 years | 9 | 12 | 21 |
| 70 to 74 years | 35 | 13 | 48 |
| 75 to 79 years | 12 | 12 | 24 |
| 80 to 84 years | 17 | 6 | 23 |
| 85 years and over | 0 | 30 | 30 |
Things to know
What is the population of Rock Island, WA under 18?
Rock Island's population under the age of 18 is 370, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 29.39% of the total resident population of Rock Island, WA.
What is the aging population in Rock Island, WA?
Rock Island's population aged 65 years and above was 146. As per the U.S. Census Bureau's American Community Survey, this population is 11.60% of the entire population.
References
- U.S. Census Bureau American Community Survey (ACS) 2018-2022 5-Year Estimates