Montebello is a city in Los Angeles County, California, United States, in the southwestern part of the San Gabriel Valley. It is located on 8.4 sq mi (22 Square kilometer) of land just 8 mi (13 km) east of downtown Los Angeles. It is considered part of the Gateway Cities, and the city is a member of the Gateway Cities Council of Governments. The name, Montebello, means Beautiful mountain in both Italian and Spanish. In the early 20th century, Montebello was a well-known source for oil reserves. The population was 62,500 at the 2010 census; according to the California Department of Finance, the estimated population of Montebello on January 1, 2011, was 62,789.