Mount Vernon township represents an area within the Mount Vernon township subdivision of the Davison County (South Dakota),
which is not part of any official city, town or other place of the Mount Vernon township subdivision.
This area is populated by approximatelly 189 people and occupies the area of 37 square miles - 1 square miles represent water areas.
Racial makeup of the population is : White (98.94%), Two or More races (0.53%) and Some Other Race (0%).
The male part of the population has a median age of 37 and the “median female” is 41 years old.
Statistical data for the Mount Vernon township based on the 2010 U.S. Census