Barrett township represents an area within the Barrett township subdivision of the Beadle County (South Dakota),
which is not part of any official city, town or other place of the Barrett township subdivision.
This area is populated by approximatelly 101 people and occupies the area of 37 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 35 and the “median female” is 28 years old.
Statistical data for the Barrett township based on the 2010 U.S. Census