Vandalia is located in Ohio. Vandalia, Ohio has a population of 15,545. Vandalia is more family-centric than the surrounding county with 27% households with children. The county percentage for households with children is 26%.
The median household income in Vandalia, Ohio is $61,692. The median household income for the surrounding county is $53,638 compared to the national median of $66,222. The median age of people living in Vandalia is 41.3 years.
The average high temperature in July is 84.2 degrees, with an average low temperature in January of 19 degrees. The annual precipitation is 39.58.