Union is located in Franklin County, Missouri. Union has a 2025 population of 508 . It is also the county seat of Franklin County . Union is currently declining at a rate of -0.2% annually but its population has increased by 0.2% since the most recent census, which recorded a population of 507 in 2020.
The average household income in Union is $79,809 with a poverty rate of 11.7%. The median age in Union is 32.6 years: 32.9 years for males, and 22.9 years for females. For every 100 females there are 77.1 males.
Data after 2023 is projected based on recent change
The racial composition of Union includes 98.91% White, and smaller percentages for Two or more races and multiracial populations.
White (98.91%)
Two or more races (1.09%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 634 | 98.91% |
| Two or more races | 7 | 1.09% |
Married
Widowed
Divorced
Separated
Never Married
Union's average per capita income is $50,125. Household income levels show a median of $69,417. The poverty rate stands at 11.7%.
Name | Median | Mean |
|---|---|---|
| Families | $76,250 | $92,417 |
| Married Families | $75,625 | - |
| Households | $69,417 | $79,809 |
| Non Families | $67,583 | $52,855 |
Average Income
Median Household Income
Poverty Rate