Atascadero is a city in San Luis Obispo County, California, about equidistant from Los Angeles and San Francisco on U.S. Route 101. Atascadero is part of the San Luis Obispo - Atascadero - Paso Robles metropolitan area. The cities of Atascadero and Paso Robles have approximately the same population. Atascadero is farther inland than most other cities in the county, and as a result, usually experiences warmer, drier summers, and cooler winters than other nearby cities such as San Luis Obispo and Pismo Beach.