U. S. Post Office - Delton
The Delton Post Office serves most of the northern part of Barry township as well as portions of Johnstown Township to the east, Hope Township to the north, Orangeville Township to the northwest, Prairieville Township to the west. A small portion of southeastern Yankee Springs Township to the north of Orangeville Township is also served by the Delton ZIP code, 49046.

A post office was first requested under the name "Dellstown", but was established as Delton in May 1877.

United States Postal Service
10155 South M-43 Hwy
Delton, MI 49046
269-623-5255