The Ketu South Municipal is one of the 261 Metropolitan, Municipal and District Assemblies (MMDAs) in Ghana, and forms part of the 18 of Municipalities and Districts in the Volta Region.
The Ketu South Municipal established by Legislative Instrument (LI) 1469 of 1989. The Ketu South Municipality lies within latitudes 60 03 north and 60 10 north, and longitude 1 0 6 east and 10 11’east and is located at the south-eastern corner of Ghana with Denu as its capital.
The Municipal shares boundaries with Ketu North Municipal to the north, the Republic of Togo to the east , the Gulf of Guinea to the south and to the west with Keta Municipal.
The population of the Municipality according to 2010 population and housing census stands at 160,756 with 75,648 males and 85,108 females.