Rio is located in Illinois. Rio, Illinois has a population of 199. Rio is less family-centric than the surrounding county with 23.81% of the households containing married families with children. The county average for households married with children is 25.27%.
The median household income in Rio, Illinois is $46,250. The median household income for the surrounding county is $45,994 compared to the national median of $69,021. The median age of people living in Rio is 49.7 years.
The average high temperature in July is 84 degrees, with an average low temperature in January of 13.6 degrees. The average rainfall is approximately 37.5 inches per year, with 24.6 inches of snow per year.
