St. Johns is located in Perry County, IL. The population is 164, making St. Johns the 6th largest city in Perry County.
There are 0 public schools in St. Johns with an average Homefacts rating of NA. The total crime rate for St. Johns is low , and there are 0 registered sex offenders residing in the city. Unemployment in St. Johns is very high and the median home sales price is $0. Detailed and up-to-date St. Johns property reports are available for any property address.