Madison township represents an area within the Madison township subdivision of the Butler County (Iowa),
which is not part of any official city, town or other place of the Madison township subdivision.
This area is populated by approximatelly 276 people and occupies the area of 38 square miles - 1 square miles represent water areas.
Racial makeup of the population is : White (98.19%), Two or More races (0.72%) and American Indian and Alaska Native (0.36%).
The male part of the population has a median age of 44 and the “median female” is 42 years old.
Statistical data for the Madison township based on the 2010 U.S. Census