Center Township is one of twelve townships in Emmet County, Iowa, United States. As of the 2000 census, its population was 459.
Center Township was created in 1876. It was named from its central location.
According to the United States Census Bureau, Center Township covers an area of 36.45 square miles (94.41 square kilometers); of this, 36.03 square miles (93.32 square kilometers, 98.85 percent) is land and 0.42 square miles (1.09 square kilometers, 1.15 percent) is water.
The township contains Swan Lake Village Cemetery.