Sandusky is an unincorporated community in Clinton Township, Decatur County, Indiana.
Sandusky was laid out 1882 along the railroad that was built through it. It was likely named after Sandusky, Ohio. A post office was established at Sandusky in 1882, and remained in operation until it was discontinued in 1905.
The United States Census Bureau defined Sandusky as a census designated place in the 2022 American Community Survey.