Angle Inlet is a census-designated place and unincorporated community in Angle Township, Lake of the Woods County, Minnesota, United States. Its population was 54 as of the 2020 census. The community is part of the Northwest Angle, the only place in the contiguous United States north of the 49th parallel; it is the northernmost census-designated place in the contiguous United States. The French built Fort Saint Charles nearby in 1732.