
Unionville
- County:
- Putnam County
- County Seat:
- Yes
- Area (mi²):
- 1.996
- State:
- Missouri
Unionville is a city located in Putnam County, Missouri. Unionville has a 2025 population of 1,695. It is also the county seat of .Unionville is currently declining at a rate of -0.41% annually and its population has decreased by -2.02% since the most recent census, which recorded a population of 1,730 in 2020.
The average household income in Unionville is $63,714 with a poverty rate of 18.36%. The median age in Unionville is 36.4 years: 31 years for males, and 42.8 years for females.