Atascadero is a city in San Luis Obispo County, California, about equidistant from San Francisco and Los Angeles. Atascadero is further inland than most other San Luis Obispo County cities, and as a result, usually experiences drier summers and cooler winters than neighboring cities such as San Luis Obispo and Pismo Beach. The current population is around 28,000. Atascadero apartments for rent comparison page shows most up to date rent information on Atascadero apartments and houses. Rent information is obtained from multiple rental sources but we cannot guarantee their accuracy.