Cold Spring is a city in Stearns County, Minnesota, United States. It is part of the St. Cloud Metropolitan Statistical Area. According to the United States Census Bureau, the city has a total area of 2.1 square miles (5.4 square kilometer), of which, 2.1 square miles (5.4 square kilometer) of it is land and 0.04 square miles (0.10 square kilometer) of it (0.95%) is water. Minnesota Highway 23 serves as a main route in the city.