Middletown was platted in 1829.
The town's name is locational, for it lies halfway between New Castle and Anderson.
A post office was established at Middletown in 1830.
Middletown was incorporated as a town in 1840.

The John W. Hedrick House and Middletown Commercial Historic District are listed on the National Register of Historic Places.
Middletown was platted in 1829. The town's name is locational, for it lies halfway between New Castle and Anderson. A post office was established at Middletown in 1830. Middletown was incorporated as a town in 1840.
The John W. Hedrick House and Middletown Commercial Historic District are listed on the National Register of Historic Places.
Middletown, Indiana