Irwin, Ohio

Irwin is an unincorporated community in southwestern Union Township, Union County, Ohio, United States. It is located at the intersection of Ohio State Route 4 and 161.^[3] Irwin has a post office which serves the surrounding area, including the community of Rosedale.

Irwin, Ohio
Unincorporated community
Post office
Location of Irwin, Ohio
Coordinates: 40°07′21″N 83°29′22″W
Country	United States
State	Ohio
Counties	Union
Elevation [1]	1,011 ft (308 m)
Time zone	UTC-5 (Eastern (EST))
• Summer (DST)	UTC-4 (EDT)
ZIP code	43029[2]
Area code	614
GNIS feature ID	1064891[1]

History

A post office has been in operation at Irwin since 15 May 1858.^[4] The community was named for one Mr. Irwin, a pioneer settler.^[5]

Located near Irwin is Elmwood Place, a historic farm that is listed on the National Register of Historic Places.^[6]