Rio is located in Illinois. Rio, Illinois has a population of 204. Rio is less family-centric than the surrounding county with 18.31% of the households containing married families with children. The county average for households married with children is 24.85%.
The median household income in Rio, Illinois is $51,250. The median household income for the surrounding county is $41,972 compared to the national median of $57,652. The median age of people living in Rio is 43.5 years.
The average high temperature in July is 84.1 degrees, with an average low temperature in January of 13.8 degrees. The average rainfall is approximately 38.2 inches per year, with 23.6 inches of snow per year.
