thumb|right|250px|U.S. Post Office in Weidman
Weidman is an unincorporated community and census-designated place (CDP) in Isabella County in the U.S. state of Michigan.
Geography
According to the United States Census Bureau, the CDP has a total area of , of which are land and , or 4.98%, are water. The built-up center of town is in the southern part of the CDP, on the south side of Lake of the Hills on the Coldwater River. The Coldwater is a south-flowing tributary of the Chippewa River and thus part of the Saginaw River drainage basin.
Weidman is by road northwest of Mount Pleasant, the Isabella County seat, and southwest of Clare.
The community is situated on the boundary between Nottawa Township on the east and Sherman Township on the west. The area of the CDP within Sherman Township is somewhat larger than that within Nottawa Township. The Nottawa Township section lies within the Isabella Indian Reservation. The postal delivery area for the Weidman 48893 ZIP Code is much larger, including large portions of both Sherman and Nottawa townships, as well as portions of Coldwater and Gilmore townships on the north and Broomfield and Deerfield townships on the south, as well as the village of Lake Isabella and the western half of the community of Beal City.
Demographics
As of the census