Crumstown is an unincorporated community in Warren Township, St. Joseph County, Indiana. Christian Holler laid out the original plat of the town of Crum's Point (Crumstown) on April 21, 1875, on the line of the Grand Trunk Railroad. In Warren Township near the junction of the Grapevine Creek and the Kankakee River. Christian Holler platted an addition to the town on January 20, 1882. The population in 1900, was one hundred.