San Luis Obispo County, California Age & Gender Distribution (2024)
Population distribution by age and gender for San Luis Obispo County, California
San Luis Obispo County, California Age & Gender Statistics (2024)
Total Population
281,555
Median Age
40.4
Male Median
38.9
Female Median
42.3
San Luis Obispo County, California Population Growth
San Luis Obispo County, California Demographic Trend
Since 2010, the population of has changed by +6.0%%.
+6.0%% Growth
San Luis Obispo County, California Age & Gender Pyramid
Figure 2: Population distribution by age and gender for 2024.
San Luis Obispo County, California Historical Population Data
| Year | Median Age | Population |
|---|---|---|
| 2024 | 40.4 | 281,555 |
| 2023 | 40.2 | 281,486 |
| 2022 | 40.0 | 281,712 |
| 2021 | 39.7 | 282,771 |
| 2020 | 39.5 | 282,517 |
| 2019 | 39.2 | 282,165 |
| 2018 | 39.1 | 281,455 |
| 2017 | 39.0 | 280,119 |
| 2016 | 39.0 | 278,680 |
| 2015 | 39.3 | 276,517 |
| 2014 | 39.5 | 274,184 |
| 2013 | 39.5 | 272,094 |
| 2012 | 39.3 | 270,121 |
| 2011 | 39.1 | 267,871 |
| 2010 | 39.0 | 265,577 |
San Luis Obispo County, California Age Group Breakdown (2024)
| Age Cohort | Percentage |
|---|---|
| Under 5 | 4.4% |
| 5–17 | 13.1% |
| 18–24 | 14.9% |
| 25–34 | 11.0% |
| 35–54 | 22.0% |
| 55–64 | 12.4% |
| 65+ | 22.1% |
Dependency Ratios for San Luis Obispo County, California
- Total Dependency Ratio:
- 65.6
- Youth Dependency:
- 29.0
- Old-Age Dependency:
- 36.7
The dependency ratio measures dependents (ages 0-17 and 65+) per 100 working-age individuals (ages 18-64).
Age & Gender FAQs for San Luis Obispo County, California
The median age in San Luis Obispo County, California is 40.4 years.
According to latest Census data, the total population of San Luis Obispo County, California is 281,555.
In San Luis Obispo County, California, seniors (ages 65+) make up 22.1% of the population, while children under 18 represent 13.1%.
Based on historical data since 2010, the population in San Luis Obispo County, California has remained stable.