ZIP Code 63565
About Unionville
Unionville is a city in Putnam County, Missouri, United States. The population was 1,735 at the 2020 census. It is the county seat of Putnam County.
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Area Profile
US Census (ACS 5-year · Gazetteer)
3,975
population
$62,928
median household income
15
people / sq mi
$117,600
median home value
$533
median gross rent
42.1
median age
2,190
housing units
1,497
households
272.1
land area (sq mi)