Rio Oso is located in Sutter County, CA. The population is 322, making Rio Oso the 4th largest city in Sutter County.
There are 1 public schools in Rio Oso with an average Homefacts rating of B. The total crime rate for Rio Oso is low , and there are 3 registered sex offenders residing in the city. Unemployment in Rio Oso is high and the median home sales price is $0. Detailed and up-to-date Rio Oso property reports are available for any property address.