Irwin is located in Shelby County, IA. The population is 389, making Irwin the 4th largest city in Shelby County.
There are 1 public schools in Irwin with an average Homefacts rating of C-. The total crime rate for Irwin is low , and there are 0 registered sex offenders residing in the city. Unemployment in Irwin is low and the median home sales price is $0. Detailed and up-to-date Irwin property reports are available for any property address.
Cities near Irwin include Jefferson Township, Greeley Township and Polk Township.