Rio is located in Knox County, IL. The population is 210.
There are 0 public schools in Rio with an average Homefacts rating of NA. The total crime rate for Rio is low , and there are 0 registered sex offenders residing in the city. Unemployment in Rio is very high and the median home sales price is $0. Detailed and up-to-date Rio property reports are available for any property address.
Cities near Rio include Rio Township, North Henderson and North Henderson Township.