Helvetia Township, Madison County, Illinois

Helvetia Township is located in Madison County, Illinois, in the United States. As of the 2010 census, its population was 8,646 and it contained 3,638 housing units.

History
Helvetia Township was organized in 1876.

Geography
According to the 2010 census, the township has a total area of 36.2 sqmi, of which 35.88 sqmi (or 99.12%) is land and 0.32 sqmi (or 0.88%) is water.