San Luis Obispo County, CA — Demographics & Population
Population, age distribution, race & ethnicity, and education data
Population Overview
Source: Census Bureau ACS (2023)Total Population
281,486
Male
142,085
50.5%
Female
139,401
49.5%
Median Age
40.2 yrs
Avg Household Size
2.5
Foreign Born
9.6%
Race & Ethnicity
Source: Census Bureau ACS (2023)Age Distribution
Source: Census Bureau ACS (2023)Education
Source: Census Bureau ACS (2023)Bachelor's or Higher26.5%
High School or Higher38.8%
Other Demographics
Source: Census Bureau ACS (2023)Veterans
5.4%
Disability
0.0%
Non-English Home
5.6%
Married
42.0%
San Luis Obispo County, CA has a population of 281,486 according to 2023 Census Bureau estimates. The median age is 40.2 years. The largest racial or ethnic group is White at 72.4% of the population. 26.5% of residents hold a bachelor's degree or higher. 9.6% of residents are foreign-born.