Mackey is an unincorporated community in Boone County, in the U.S. state of Iowa.

[1] The community was named after Sebastian Mackey, an early settler.

[3] A variant name was "Mackey’s Grove".

[3] A post office called Mackeys Grove was established in 1870, the name was changed to Mackey in 1883, and the post office closed in 1905.

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