San Miguel (San Luis Obispo County), California Demographics & Population 2026

Population Overview

San Miguel (San Luis Obispo County) is a small community located in California, within San Luis Obispo County. The total population is 3,227. It ranks as the 774th most populous out of 1,570 Census-designated places in California.

Age Demographics

The median age in San Miguel (San Luis Obispo County) is 30.4 years. This is 20% lower than the state median of 37.9 years. With 36.0% of the population under 18, San Miguel (San Luis Obispo County) has a notably young demographic profile, suggesting a family-oriented community.

Economy, Income & Housing

The median household income in San Miguel (San Luis Obispo County) is $95,458. This is 4% lower than the state median of $99,122. It is also 18% higher than the national median of $80,734. The poverty rate stands at 27.0%. This is 125% 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 5.9%. This is 10% lower than the state rate of 6.6%. The median home value is $539,700. Housing costs are 27% lower than the state median of $734,700. The home-value-to-income ratio is 5.7x. 58.0% of occupied housing units are owner-occupied. This homeownership rate is 4% higher than the state average of 55.9%.

Race & Ethnicity

The largest racial or ethnic group in San Miguel (San Luis Obispo County) is Hispanic or Latino, making up 77.5% of the population. White (non-Hispanic) residents account for 18.4%. The Black or African American population (1.2%) is well below the state average of 5.2%. The Hispanic or Latino population is significantly higher than the state average (77.5% vs 40.2%).

Education

16.4% of residents aged 25 and older hold a bachelor's degree or higher. This is 56% lower than the state rate of 37.1%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 73.7%.

Data Sources & Methodology

All demographic data for San Miguel (San Luis Obispo County), California is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against California state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,570 Census-designated places in California. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.