Millboro township represents an area within the Millboro township subdivision of the Tripp County (South Dakota),
which is not part of any official city, town or other place of the Millboro township subdivision.
This area is populated by approximatelly 35 people and occupies the area of 36 square miles - 1 square miles represent water areas.
Racial makeup of the population is : White (100%), Two or More races (0%) and (%).
The male part of the population has a median age of 41 and the “median female” is 52 years old.
Statistical data for the Millboro township based on the 2010 U.S. Census