Minnesota State Highway 99 (MN 99) is a 40.098-mile-long (64.531 km) highway in south-central Minnesota, which runs from its intersection with State Highway 111 in Nicollet and continues east to its eastern terminus at its intersection with State Highway 21 in Erin Township, near the city of Faribault. MN 99 passes through the cities of St. Peter and Le Center.