Union Star, Missouri

Union Star, Missouri
Location of Union Star, Missouri
Coordinates: 39°58′46″N 94°35′56″W / 39.97944°N 94.59889°W / 39.97944; -94.59889
CountryUnited States
StateMissouri
CountyDeKalb
Area
 • Total
0.26 sq mi (0.68 km2)
 • Land0.26 sq mi (0.68 km2)
 • Water0 sq mi (0.00 km2)
Elevation
971 ft (296 m)
Population
 (2020)
 • Total
380
 • Density1,451/sq mi (560.3/km2)
Time zoneUTC-6 (Central (CST))
 • Summer (DST)UTC-5 (CDT)
ZIP code
64494
Area code816
FIPS code29-75130
GNIS feature ID2397704

Union Star is a city in northwest DeKalb County, Missouri, United States, along the Third Fork Platte River. The population was 380 at the 2020 census. It is part of the St. Joseph, MO–KS Metropolitan Statistical Area.