Minnesota State Highway 55 (MN 55) is a highway in west-central, central, and east-central Minnesota, which runs from the North Dakota state line near Tenney and continues east and southeast to its eastern terminus at its intersection with U.S. Highway 61 in Hastings.This route, signed east–west, runs roughly diagonally across the central part of Minnesota.Highway 55 is 221 miles (356 km) in length.