Milroy is a census-designated place in Anderson Township, in the southern part of Rush County, in the U.S. state of Indiana. History Milroy was laid out and platted in 1830. The Milroy post office has been in operation since 1832. Education The community contains Milroy Elementary School, a public school in the county school district. Geography Milroy is located at . Demographics References External links Town of Milroy Economic Development Corporation website Unincorporated communities in Rush County, Indiana Unincorporated communities in Indiana