Union is located in Prairie County, Arkansas. Union has a 2025 population of 19 . Union is currently declining at a rate of 0% annually and its population has decreased by 0% since the most recent census, which recorded a population of 0 in 2020.
The median age in Union is 47.3 years: 0 years for males, and 0 years for females. For every 100 females there are 137.5 males.
Data after 2023 is projected based on recent change
The racial composition of Union includes 73.68% White, and smaller percentages for and multiracial populations.
White (73.68%)
Two or more races (26.32%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 14 | 73.68% |
| Two or more races | 5 | 26.32% |
Married
Widowed
Divorced
Separated
Never Married