Elba Township is a township located in Gratiot County in the U.S. state of Michigan. As of the 2000 census, the township had a total population of 1,394.
According to the United States Census Bureau, the township has a total area of 91.0 km2 (35.1 mi2). 91.0 km2 (35.1 mi2) of it is land and none of it is covered by water.