Rio Vista Real EstateRio Vista is located in California. Rio Vista, California has a population of 8,350. Rio Vista is less family-centric than the surrounding county with 11.13% of the households containing married families with children. The county average for households married with children is 30.62%. The median household income in Rio Vista, California is $65,797. The median household income for the surrounding county is $72,950 compared to the national median of $57,652. The median age of people living in Rio Vista is 62.3 years. Rio Vista WeatherThe average high temperature in July is 91.4 degrees, with an average low temperature in January of 38.7 degrees. The average rainfall is approximately 21.2 inches per year, with 0 inches of snow per year. Rio Vista MapReal estate near Rio VistaNearby CitiesNearby Cities Homes for Sale |