- source: Getty Thesaurus of Geographic Names
- source: Family History Library Catalog
- the text in this section is copied from an article in Wikipedia
Vandalia is a city in Audrain and Ralls Counties in the U.S. state of Missouri. The population was 3,899 at the 2010 census.
Col. Aaron McPike, who founded Vandalia in 1874, called Vandalia "Queen of the Prairie". Vast rolling prairies had underlying coal and refractory types of clay. Brickplants are major employers in Audrain County today.
The Audrain County portion of Vandalia is part of the Mexico Micropolitan Statistical Area, while the Ralls County portion is part of the Hannibal Micropolitan Statistical Area.