Merrillan, WI

ZIP code 54754 centers on Osseo, a small city in Trempealeau County in western Wisconsin, near Interstate 94 and U.S. Highway 10. Notable local landmarks include Osseo’s historic downtown, Lake Martha and the adjacent city park, and Osseo-Fairchild High School. The surrounding postal area is largely rural, with farmland, wooded areas, and the rolling landscape characteristic of western Wisconsin.