Union Township Vanderburgh County
Township
Farm on Nurrenbern Road
Location in Vanderburgh County
Coordinates: 37°52′31″N 87°37′50″W / 37.87528°N 87.63056°W / 37.87528; -87.63056
Country	United States
State	Indiana
County	Vanderburgh
Government
• Type	Indiana township
Area
• Total	28.09 sq mi (72.8 km2)
• Land	27.54 sq mi (71.3 km2)
• Water	0.55 sq mi (1.4 km2)  1.96%
Elevation	361 ft (110 m)
Population  (2020)[1]
• Total	264
• Density	10.6/sq mi (4.1/km2)
ZIP code	47712
GNIS feature ID	453937

Union Township is the most sparsely populated of the eight townships in Vanderburgh County, Indiana, United States. As of the 2010 census, its population was 292 and it contained 227 housing units.^[2] This is largely due to the entire township being located within the Ohio River Floodplain.

Union Township was organized in 1819.^[3] It was the subject of Handly's Lessee v. Anthony, a case before the United States Supreme Court regarding the border between Indiana and Kentucky.

According to the 2010 census, the township has a total area of 28.09 square miles (72.8 km²), of which 27.54 square miles (71.3 km²) (or 98.04%) is land and 0.55 square miles (1.4 km²) (or 1.96%) is water.^[2]

• Cypress
• Rahm
• Vaughan

• Perry Township (north)

The township contains Stroud Cemetery.

• Ohio River

• Evansville-Vanderburgh School Corporation

• Indiana's 8th congressional district
• State House District 76
• State Senate District 49

• "Union Township, Vanderburgh County, Indiana". Geographic Names Information System. United States Geological Survey, United States Department of the Interior. Retrieved February 20, 2010.
• United States Census Bureau 2007 TIGER/Line Shapefiles
• IndianaMap