what is the population of san luis obispo
San Luis Obispo, California San Luis Obispo (/sæn ˌluːɪs əˈbɪspoʊ/;[9] Spanish for St. Louis, the Bishop [of Toulouse]), or SLO /ˈsloʊ/ for short, is a city in the U.S. state of California, located roughly midway between Los Angeles and San Francisco on the Central Coast. The population was 45,119 at the 2010 census.[10] The population of San Luis Obispo County was 269,637 in 2010.