Korean Peninsula is a territory of South Korea
South Korea is located in East Asia, on the southern portion of the Korean Peninsula located out from the far east of the Asian landmass. The only country that shares a land border with South Korea is North Korea, lying to the north with 238 kilometres (148 mi) of the border running along the Korean Demilitarized Zone. South Korea is mostly surrounded by water and has 2,413 kilometres (1,499 mi) of coast line along three seas; to the west is the Yellow Sea (called Sohae Korean: 서해; Hanja: 西海; in South Korea, literally means west sea), to the south is the East China Sea, and to the east is the Sea of Japan (called Donghae Korean: 동해; Hanja: 東海; in South Korea, literally means east sea). Geographically, South Korea's landmass is approximately 100,364 square kilometres (38,751 sq mi).[1] 290 square kilometres (110 sq mi) of South Korea are occupied by water. The approximate coordinates are 37° North, 128° East. [...] The total land area of the peninsula, including the islands, is 223,170 square kilometers. Some 44.8 percent (100 210 square kilometers) of this total, excluding the area within the DMZ, constitutes the territory of the Republic of Korea. The combined territories of North Korea and South Korea are about the same size as the United Kingdom. South Korea alone is about the size of Portugal or Hungary, or the U.S. state of Indiana.[2]