Rio Dell Real EstateRio Dell is located in California. Rio Dell, California has a population of 3,385. Rio Dell is more family-centric than the surrounding county with 37.55% of the households containing married families with children. The county average for households married with children is 26.15%. The median household income in Rio Dell, California is $34,292. The median household income for the surrounding county is $43,718 compared to the national median of $57,652. The median age of people living in Rio Dell is 39.9 years. Rio Dell WeatherThe average high temperature in July is 70.8 degrees, with an average low temperature in January of 43.3 degrees. The average rainfall is approximately 54.7 inches per year, with 0.5 inches of snow per year. Rio Dell MapReal estate near Rio DellNearby CitiesNearby Cities Homes for Sale |