Unionville is a city located in Putnam County Missouri. It is also the county seat of Putnam County. With a 2020 population of 1,702, it is the 262nd largest city in Missouri and the 8235th largest city in the United States . Unionville is currently declining at a rate of -1.16% annually and its population has decreased by -8.74% since the most recent census, which recorded a population of 1,865 in 2010. Spanning over 2 miles, Unionville has a population density of 853 people per square mile.
The average household income in Unionville is $41,322 with a poverty rate of 15.69%. The median rental costs in recent years comes to $568 per month, and the median house value is $67,000. The median age in Unionville is 37.5 years, 37.1 years for males, and 42 years for females.