San Luis Obispo city, California Demographics & Population 2026

Population Overview

San Luis Obispo city is a mid-sized community located in California. The total population is 48,039. It ranks as the 196th most populous out of 1,577 cities and towns in California.

Age Demographics

The median age in San Luis Obispo city is 26.2 years. This is 30% lower than the state median of 37.6 years. Only 10.8% of residents are under 18, indicating fewer families with children.

Economy, Income & Housing

The median household income in San Luis Obispo city is $66,711. This is 31% lower than the state median of $96,334. Compared to the national median of $78,538, household income here is 15% lower. The poverty rate stands at 30.0%. This is 150% higher than the state poverty rate of 12.0%. With more than one in five residents living below the poverty line, economic hardship is a significant challenge for the community. The unemployment rate is 6.7%. This is 4% higher than the state rate of 6.4%. The median home value is $896,500. Housing costs are 29% higher than the state median of $695,400. The home-value-to-income ratio of 13.4x suggests that housing affordability is a significant concern for many residents. 39.0% of occupied housing units are owner-occupied. This homeownership rate is 30% lower than the state average of 55.8%.

Race & Ethnicity

The largest racial or ethnic group in San Luis Obispo city is White (non-Hispanic), making up 70.5% of the population. Hispanic or Latino residents account for 17.3%. The White (non-Hispanic) population is significantly higher than the state average (70.5% vs 34.6%). The Black or African American population (1.2%) is well below the state average of 5.3%. The Hispanic or Latino population (17.3%) is well below the state average of 39.8%. The Asian population (5.1%) is well below the state average of 15.0%.

Education

54.4% of residents aged 25 and older hold a bachelor's degree or higher. This is 49% higher than the state rate of 36.5%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 96.0%. Notably, 23.3% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All demographic data for San Luis Obispo city, California is sourced from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates (2019-2023). The ACS collects data from approximately 3.5 million households annually, providing reliable estimates for communities of all sizes. Comparisons are made against California state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,577 Census-designated places in California. For official data, visit data.census.gov.