Union is located in Jasper County, Indiana. Union has a 2025 population of 1,574 . Union is currently declining at a rate of -0.32% annually but its population has increased by 1.68% since the most recent census, which recorded a population of 1,548 in 2020.
The median age in Union is 35.5 years: 29.1 years for males, and 47.8 years for females. For every 100 females there are 109.6 males.
Data after 2023 is projected based on recent change
The racial composition of Union includes 65.23% White, 25.23% other race, and smaller percentages for and multiracial populations.
White (65.23%)
Other race (25.23%)
Two or more races (9.54%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 1,073 | 65.23% |
| Other race | 415 | 25.23% |
| Two or more races | 157 | 9.54% |
Married
Widowed
Divorced
Separated
Never Married