Irwin is located in Barton County, MO. The population is 81, making Irwin the 8th largest city in Barton County.
There are 0 public schools in Irwin with an average Homefacts rating of NA. 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 Union Township, Doylesport Township and Sheldon.