Commerce is a city located in southeast Los Angeles County, California, United States. The population was 12,823 at the 2010 census, up from 12,568 at the 2000 census. It is usually referred to as the City of Commerce to distinguish it from the common noun. It is bordered by Vernon on the west, Los Angeles on the northwest, East Los Angeles on the north, Montebello on the east, Downey and Bell Gardens on the south, and Maywood on the southwest.