Rio is located in Illinois. Rio, Illinois has a population of 167. Rio is less family-centric than the surrounding county with 21% households with children. The county percentage for households with children is 23%.
The median household income in Rio, Illinois is $77,206. The median household income for the surrounding county is $46,342 compared to the national median of $66,222. The median age of people living in Rio is 47 years.
The average high temperature in July is 84.79 degrees, with an average low temperature in January of 12.77 degrees. The annual precipitation is 37.71.