Jefferson County, Oregon Age & Gender Distribution (2024)
Population distribution by age and gender for Jefferson County, Oregon
Jefferson County, Oregon Age & Gender Statistics (2024)
Total Population
25,203
Median Age
41.5
Male Median
40.9
Female Median
42.2
Jefferson County, Oregon Population Growth
Jefferson County, Oregon Demographic Trend
Since 2010, the population of has changed by +16.4%%.
+16.4%% Growth
Jefferson County, Oregon Age & Gender Pyramid
Figure 2: Population distribution by age and gender for 2024.
Jefferson County, Oregon Historical Population Data
| Year | Median Age | Population |
|---|---|---|
| 2024 | 41.5 | 25,203 |
| 2023 | 41.3 | 24,973 |
| 2022 | 41.1 | 24,659 |
| 2021 | 40.7 | 24,232 |
| 2020 | 41.0 | 24,048 |
| 2019 | 40.8 | 23,607 |
| 2018 | 40.5 | 23,143 |
| 2017 | 40.6 | 22,707 |
| 2016 | 40.2 | 22,305 |
| 2015 | 39.9 | 22,061 |
| 2014 | 40.1 | 21,830 |
| 2013 | 40.2 | 21,461 |
| 2012 | 40.1 | 21,746 |
| 2011 | 39.6 | 21,786 |
| 2010 | 39.1 | 21,652 |
Jefferson County, Oregon Age Group Breakdown (2024)
| Age Cohort | Percentage |
|---|---|
| Under 5 | 5.9% |
| 5–17 | 16.8% |
| 18–24 | 7.6% |
| 25–34 | 12.8% |
| 35–54 | 23.6% |
| 55–64 | 13.4% |
| 65+ | 19.9% |
Dependency Ratios for Jefferson County, Oregon
- Total Dependency Ratio:
- 74.2
- Youth Dependency:
- 39.5
- Old-Age Dependency:
- 34.7
The dependency ratio measures dependents (ages 0-17 and 65+) per 100 working-age individuals (ages 18-64).
Age & Gender FAQs for Jefferson County, Oregon
The median age in Jefferson County, Oregon is 41.5 years.
According to latest Census data, the total population of Jefferson County, Oregon is 25,203.
In Jefferson County, Oregon, seniors (ages 65+) make up 19.9% of the population, while children under 18 represent 16.8%.
Based on historical data since 2010, the population in Jefferson County, Oregon is aging.