Erwin township represents an area within the Erwin township subdivision of the Gogebic County (Michigan),
which is not part of any official city, town or other place of the Erwin township subdivision.
This area is populated by approximatelly 326 people and occupies the area of 49 square miles - 2 square miles represent water areas.
Racial makeup of the population is : White (97.24%), Two or More races (2.15%) and American Indian and Alaska Native (0.61%).
The male part of the population has a median age of 50 and the “median female” is 49 years old.
Statistical data for the Erwin township based on the 2010 U.S. Census