Killduff is an unincorporated community in southeastern Jasper County, Iowa, United States.

[1] Killduff has a post office which opened on July 2, 1883.

[2] Killduff was once located on the Iowa Central Railway.

[4] In 1912, Killduff contained a post office, two stores, a lumber yard, and a blacksmith shop.

This article about the geography of Jasper County, Iowa is a stub.