Napa County, California Age & Gender Distribution (2024)
Population distribution by age and gender for Napa County, California
Napa County, California Age & Gender Statistics (2024)
Total Population
134,869
Median Age
42.9
Male Median
42.2
Female Median
44.0
Napa County, California Population Growth

Napa County, California Demographic Trend
Since 2010, the population of has changed by +0.6%%.
+0.6%% Growth
Napa County, California Age & Gender Pyramid

Figure 2: Population distribution by age and gender for 2024.
Napa County, California Historical Population Data
| Year | Median Age | Population |
|---|---|---|
| 2024 | 42.9 | 134,869 |
| 2023 | 42.8 | 136,070 |
| 2022 | 42.5 | 137,384 |
| 2021 | 42.1 | 138,795 |
| 2020 | 41.8 | 138,572 |
| 2019 | 41.3 | 139,623 |
| 2018 | 41.1 | 140,530 |
| 2017 | 40.8 | 141,005 |
| 2016 | 40.7 | 140,823 |
| 2015 | 40.3 | 140,295 |
| 2014 | 40.3 | 139,253 |
| 2013 | 39.8 | 137,837 |
| 2012 | 39.6 | 136,644 |
| 2011 | 39.5 | 135,377 |
| 2010 | 39.4 | 134,051 |
Napa County, California Age Group Breakdown (2024)
| Age Cohort | Percentage |
|---|---|
| Under 5 | 4.5% |
| 5–17 | 15.0% |
| 18–24 | 8.2% |
| 25–34 | 12.0% |
| 35–54 | 25.7% |
| 55–64 | 13.4% |
| 65+ | 21.1% |
Dependency Ratios for Napa County, California
- Total Dependency Ratio:
- 68.2
- Youth Dependency:
- 32.7
- Old-Age Dependency:
- 35.5
The dependency ratio measures dependents (ages 0-17 and 65+) per 100 working-age individuals (ages 18-64).
Age & Gender FAQs for Napa County, California
The median age in Napa County, California is 42.9 years.
According to latest Census data, the total population of Napa County, California is 134,869.
In Napa County, California, seniors (ages 65+) make up 21.1% of the population, while children under 18 represent 15.0%.
Based on historical data since 2010, the population in Napa County, California is aging.