The Madison township is a subdivision of the Poweshiek County, in the state of Iowa.
This subdivision represents an area of 37 square miles - 1 square miles are water areas.
There are 1 cities, towns or villages in the Madison township subdivision - their combined population count is 433.
Approximatelly 207 people live in “Remainders” areas, that are officially not part of any city or town.
Total population of the subdivision is 640.
Racial makeup of this subdivision is as follows : White (98.44%),
followed by American Indian and Alaska Native (1.09%) and Black or African American (0.31%).
Median age for the male population is 50 and 49 for the female part.
Statistical data for the Madison township based on the 2010 U.S. Census