Grant Township, St. Clair County, Michigan

Grant Township is a civil township of St. Clair County in the U.S. state of Michigan. As of the 2020 Census, the township population was 1,829.

Communities

Blaine is an unincorporated community near the center of the township at . Thomas S. Knapp of Detroit made the first land purchase here in 1828 on which he built a sawmill. When Grant Township was organized in 1866, it was named for then General (and later U.S. president) Ulysses S Grant. The settlement became known as Grant Center, but because there was another post office with that name in Michigan at the time, it requested the name Blaine, after Republican U.S. Senator James G. Blaine. The post office operated from November 1879 until December 1960.
Jeddo is an unincorporated community in the northern part of the township at . It was first known as "Potter's Corners" after A.S. Potter, an early settler. It was given a post office named "Pottersburg" in February 1859. It was renamed Jeddo in July 1864.

According to the United States Census Bureau, the township has a total area of , all land.

As of the census