Union Star, MO

Union Star is a city in northwest DeKalb County, Missouri, United States, along the Third Fork Platte River. The 2020 census counted 380 residents. Union Star is part of the St. Joseph, MO–KS Metropolitan Statistical Area. A post office called Union Star has been in operation since 1863. That mix gives Union Star a clear local shape within Missouri, with older layers still visible in current places. The local scoop is a place whose streets, landmarks, and institutions keep its earlier story close to the present. Union Star is located in the Polk township of DeKalb County on the border with Andrew County. Union Star is 20 miles from Saint Joseph and Exit 50 on Interstate 29, on U.S. Highway 169.