San Juan County, Washington Age & Gender Distribution (2024)
Population distribution by age and gender for San Juan County, Washington
San Juan County, Washington Age & Gender Statistics (2024)
Total Population
18,478
Median Age
57.0
Male Median
56.0
Female Median
58.0
San Juan County, Washington Population Growth
San Juan County, Washington Demographic Trend
Since 2010, the population of has changed by +18.8%%.
+18.8%% Growth
San Juan County, Washington Age & Gender Pyramid
Figure 2: Population distribution by age and gender for 2024.
San Juan County, Washington Historical Population Data
| Year | Median Age | Population |
|---|---|---|
| 2024 | 57.0 | 18,478 |
| 2023 | 56.7 | 18,266 |
| 2022 | 56.5 | 18,001 |
| 2021 | 56.5 | 17,631 |
| 2020 | 56.7 | 16,953 |
| 2019 | 56.6 | 16,788 |
| 2018 | 56.1 | 16,473 |
| 2017 | 55.7 | 16,221 |
| 2016 | 55.1 | 16,056 |
| 2015 | 54.4 | 15,956 |
| 2014 | 53.8 | 15,847 |
| 2013 | 53.3 | 15,786 |
| 2012 | 52.9 | 15,740 |
| 2011 | 52.4 | 15,662 |
| 2010 | 51.9 | 15,551 |
San Juan County, Washington Age Group Breakdown (2024)
| Age Cohort | Percentage |
|---|---|
| Under 5 | 2.5% |
| 5–17 | 10.0% |
| 18–24 | 4.4% |
| 25–34 | 8.3% |
| 35–54 | 22.3% |
| 55–64 | 16.4% |
| 65+ | 36.0% |
Dependency Ratios for San Juan County, Washington
- Total Dependency Ratio:
- 94.5
- Youth Dependency:
- 24.5
- Old-Age Dependency:
- 70.1
The dependency ratio measures dependents (ages 0-17 and 65+) per 100 working-age individuals (ages 18-64).
Age & Gender FAQs for San Juan County, Washington
The median age in San Juan County, Washington is 57.0 years.
According to latest Census data, the total population of San Juan County, Washington is 18,478.
In San Juan County, Washington, seniors (ages 65+) make up 36.0% of the population, while children under 18 represent 10.0%.
Based on historical data since 2010, the population in San Juan County, Washington is aging.