Irwin is an

unincorporated community An unincorporated area is a region that is not governed by a local municipal corporation. Widespread unincorporated communities and areas are a distinguishing feature of the United States and Canada. Most other countries of the world either have ...

in southwestern Union Township, Union County,

Ohio Ohio () is a state in the Midwestern region of the United States. Of the fifty U.S. states, it is the 34th-largest by area, and with a population of nearly 11.8 million, is the seventh-most populous and tenth-most densely populated. The sta ...

, United States. It is located at , at the intersection of Ohio State Route 4 and 161. Irwin has a post office which serves the surrounding area, including the community of Rosedale.

History

A post office has been in operation at Irwin since 15 May 1858. The community was named for one Mr. Irwin, a pioneer settler. Located near Irwin is Elmwood Place, a historic farm that is listed on the

National Register of Historic Places The National Register of Historic Places (NRHP) is the United States federal government's official list of districts, sites, buildings, structures and objects deemed worthy of preservation for their historical significance or "great artistic ...

References

Unincorporated communities in Union County, Ohio Unincorporated communities in Ohio {{UnionCountyOH-geo-stub