South Africa is 662 times larger than Gboko.
Area: 1,214,470 km2 World Factbook
Population: 48,375,645 (July 2014) World Factbook
South Africa, officially the Republic of South Africa, is a country located at the southern tip of Africa. It has 2,798 kilometres of coastline that stretches along the South Atlantic and Indian oceans. Wikipedia
Area: 1,836 km2 calculated
Gboko is a fast growing town in the Benue State of North-central Nigeria. The name Gboko also refers to a Local Government in Benue State. The population for the town is over 500,000, mostly Tiv people. Wikipedia