Norco is a city in Riverside County, California, in the United States. As of the 2010 census, the city population was 27,063, up from 24,157 at the 2000 census. As a horse community, there are few sidewalks in the city of Norco instead, there are horse trails, and riders can ride to town and tie their horses at the many hitching rails and corrals placed close to businesses. In 2006, Norco began promoting itself as “Horsetown U.S.A.” and received a federal trademark. A large cement mural with this logo and reliefs of horses can be seen on the freeway near the I-15 southbound. The nickname can also be found on stickers and other promotional items sold around town.