Rowland Heights is an unincorporated area and census designated place of 13.1 square miles (34 km2), located in and below the Puente Hills in the San Gabriel Valley, in Los Angeles County, California and borders Orange County in the Los Angeles metropolitan area. It is known for a large Chinese community and higher than average home prices when compared to the rest of Los Angeles County. The population of the census designated place (CDP) was 48,993 at the 2010 census.