Irwin is a city in Shelby County, Iowa, United States, along the West Nishnabotna River. The population was 319 at the time of the 2020 census.
History
The Western Town Lot Company established Irwin in 1881. The town was named for E. W. Irwin, the property owner. Irwin was incorporated in 1892.
In 1963, two United States Air Force B-47E bombers based at Schilling Air Force Base near Salina, Kansas, collided over western Iowa on August 19 and crashed several miles apart near Irwin. All six crewman ejected, but three were killed.
Geography
According to the United States Census Bureau, the city has a total area of , all of it land.