San Luis Obispo Flag

San Luis Obispo

County Seat:
Yes
Area (mi²):
13.64
State:
California

San Luis Obispo is a city located in San Luis Obispo County, California. San Luis Obispo has a 2026 population of 49,729. It is also the county seat of San Luis Obispo County. San Luis Obispo is currently growing at a rate of 1.26% annually and its population has increased by 5.38% since the most recent census, which recorded a population of 47,191 in 2020.

49.7K
Total Population
3,646
Density (mi²)
619 1.26%
Growth

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)