Irwin is a city in Ohio. So far we have accumulated 0 streets in Irwin and on these streets we have added 0 real estate properties.
- Federal District
Irwin is an unincorporated community in southwestern Union Township, Union County, Ohio, United States. It is located at 40°07'21?N83°29'22?W? / ?40.12250°N 83.48944°W, at the intersection of Ohio State Route 4 and 161. Although it is unincorporated, Irwin has a post office which serves the surrounding area, including the community of Rosedale.