Rio Dell is a city in Humboldt County, California, United States. It is located on the west bank of the Eel River 1 mile north of Scotia at an elevatio…
Rio Dell is a city in Humboldt County, California, United States. It is located on the west bank of the Eel River 1 mile north of Scotia at an elevation of 161 feet. The population was 3,363 at the 2010 census, up from 3,174 at the 2000 census.