Union is located in Moody County, South Dakota. Union has a 2025 population of 79. Union is currently declining at a rate of -1.25% annually and its population has decreased by -1.25% since the most recent census, which recorded a population of 80 in 2020.
The median age in Union is 29.4 years: 0 years for males, and 0 years for females.
Data after 2023 is projected based on recent change
The racial composition of Union includes 100% White, and smaller percentages for and multiracial populations.
White (100.0%)
Race | Population | Percentage (of total) |
---|---|---|
White | 51 | 100% |
Married
Widowed
Divorced
Separated
Never Married