Atascadero Flag

Atascadero

County Seat:
No
Area (mi²):
26.071
State:
California

Atascadero is a city located in San Luis Obispo County, California. Atascadero has a 2026 population of 29,743. Atascadero is currently growing at a rate of 0.17% annually but its population has decreased by -0.01% since the most recent census, which recorded a population of 29,746 in 2020.

29.7K
Total Population
1,141
Density (mi²)
51 0.17%
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)