Paso Robles is a city in San Luis Obispo County, California, United States. The population was 24,297 at the 2000 census. In 2007 the population is at 29,297. 2010 population estimate is around 32,000. Paso Robles is the fastest growing city w/ population in San Luis Obispo County. The population estimate for 2025 is 44,000. A resort city located on the Salinas River north of San Luis Obispo, California, it is known for its hot springs, and for playing host to the California Mid-State Fair. In English, the name means 'Oak Pass' or 'The Pass of the Oaks.' El Paso de Robles (Paso Robles) apartments for rent comparison page shows most up to date rent information on El Paso de Robles (Paso Robles) apartments and houses. Rent information is obtained from multiple rental sources but we cannot guarantee their accuracy.