Paso Robles, officially El Paso de Robles, is a city in San Luis Obispo County, California, United States. Located on the Salinas River about 30 mi (48 km) north of San Luis Obispo, the city is known for its hot springs, abundance of wineries, production of olive oil, almond orchards, and playing host to the California Mid-State Fair. At the 2020 census, the population was 31,490.