Irwin Map
Irwin is a city in Shelby County, Iowa, United States, along the West Nishnabotna River. The population was 372 at the 2000 census.
Irwin is located at 41°47?26?N 95°12?26?W / 41.79056°N 95.20722°W / 41.79056; -95.20722 (41.790449, -95.207341).
According to the United States Census Bureau, the city has a total area of 0.6 square miles (1.6 km²), all of it land.
Nearby cities include Manning, Earling, Harlan, Kimballton, Panama.