ZIP Code 64494
About Union Star
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.
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Area Profile
US Census (ACS 5-year · Gazetteer)
1,066
population
$59,348
median household income
19
people / sq mi
$122,200
median home value
$930
median gross rent
40.0
median age
480
housing units
424
households
56.7
land area (sq mi)