Program Information The City of Norco, incorporated as a general law City in 1964 and a Charter City in 2003, is an animal-keeping and equestrian-oriented community situated along the Interstate 15 Freeway in Western Riverside County, CA. The City limits cover an area of approximately 15 square miles, with a population of approximately 26,703 as of January 2005. Residents enjoy over 400 acres of parkland and 95 miles of pedestrian/equestrian trails. Norco is also home to the U.S. Naval Surface Warfare Center, the California Rehabilitation Center and the Riverside Community College, Norco Campus.