The Inland Empire is a metropolitan area and region in Southern California east of the Los Angeles metropolitan area. The term may be used to refer to the cities of western Riverside County and southwestern San Bernardino County. Norco is a city in Riverside County, California, in the United States. According to city ordinances, the architecture of Norco "shall reflect a desired Western theme," including qualities "described as rural, informal, traditional, rustic, low-profile and equestrian oriented." The city's name is an abbreviation of "North Corona". It was named after the North Corona Land Company.