Laredo is an unincorporated rural community in Hill County, Montana, United States. The elevation is 2,644 feet. Laredo is located at latitud…Laredo is an unincorporated rural community in Hill County, Montana, United States. The elevation is 2,644 feet. Laredo is located at latitude 48.431 and longitude -109.883. It is located on U.S. Route 87, 13 miles south of Havre.