Assumption is an unincorporated community in Carver and Sibley Counties, Minnesota, United States.The community is located eight miles east–northeast of Green Isle. Nearby places also include Hamburg, Norwood Young America, Bongards, Cologne, and Belle Plaine. The community is home to the Assumption State Wildlife Management Area.Assumption is located within Hancock Township in Carver County; and also located within Washington Lake Township in Sibley County.