Map of Unionville city, Missouri

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.

Unionville city overview:
Name:	Unionville city
LSAD Code:	25
LSAD Description:	city (suffix)
State:	Missouri
County:	Putnam County
Elevation:	1,047 ft (319 m)
Total Area:	2.00 sq mi (5.17 km²)
Land Area:	2.00 sq mi (5.17 km²)
Water Area:	0.00 sq mi (0.00 km²)
Total Population:	1,735
Population Density:	869.24/sq mi (335.54/km²)
ZIP code:	63565
Area code:	660
FIPS code:	2975166
GNISfeature ID:	2397090

Online Interactive Map

Click on to view map in "full screen" mode.

Unionville online map. Source: Basemap layers from Google Map, Open Street Map (OSM), Arcgisonline, Wmflabs. Boundary Data from Database of Global Administrative Areas.

Unionville location map. Where is Unionville city?

Unionville location on the U.S. Map. Where is Unionville city. — Unionville location on the U.S. Map.

Unionville location on the Missouri map. Where is Unionville city. — Location of Unionville in Missouri.

History

Unionville was first named Harmony when established in 1853 as the county seat for Putnam County. Prior to that the county seat had moved several times, often with heated debate, thus the centralized location hoping to bring “harmony” to all concerned. (see Putnam County history for more details)

The Union Township trustees first met on February 4, 1873, at the court-house in Unionville. Since that day, Unionville straddles the municipal border between Union Township and Wilson Township.

On May 22, 1962, Continental Airlines Flight 11, en route from O’Hare Airport in Chicago, Illinois to the downtown Kansas City, Missouri airport, crashed in a clover field north of Unionville, near Lake Thunderhead, killing all 37 passengers and 8 crew. Investigators subsequently determined that one of the jetliner’s passengers, Thomas G. Doty, detonated a bomb inside the Boeing 707 in a suicide-for-insurance plot.

Unionville Road Map

Unionville city Satellite Map

Geography

Unionville is located in central Putnam County at the intersection of US Route 136 and Missouri Route 5. Lake Thunderhead on North Blackbird Creek lies to the northwest of the city and the Missouri-Iowa border is seven miles north.

According to the United States Census Bureau, the city has a total area of 2.00 square miles (5.18 km), all of it land.