Vandalia is a village in Penn Township within Cass County in the U.S. state of Michigan.

[4] It is part of the South Bend–Mishawaka, IN-MI, Metropolitan Statistical Area sometimes referred to as Michiana.

[5] On July 8, 1850, Theron J Wilcox was the colony's first postmaster and Ada Kinsbury is credited with being the area’s first merchant.

[6] An Underground Railroad memorial sign resides at Milo E. Barnes Park just off M-60.

Vandalia is also known as the nearest incorporated community to the defunct Rainbow Farm.

According to the United States Census Bureau, the village has a total area of 0.99 square miles (2.56 km2), all land.

23.4% of all households were made up of individuals, and 6.5% had someone living alone who was 65 years of age or older.

15.7% of all households were made up of individuals, and 6.3% had someone living alone who was 65 years of age or older.