Seas of the Pacific Ocean

List of the 12 Seas Surrounding the Pacific Ocean

The Pacific Ocean is the largest of the world's five oceans. It has a total area of 60.06 million square miles (155.557 million sq km) and it stretches from the Arctic Ocean in the north to the Southern Ocean in the south and has coastlines along the continents of Asia, Australia, North America and South America (map). In addition, some areas of the Pacific Ocean feed into what is called a marginal sea instead of pushing right up against the coastlines of the aforementioned continents.

By definition a marginal sea is an area of water that is a "partially enclosed sea adjacent to or widely open to the open ocean" (

The Pacific Ocean shares its borders with 12 different marginal seas. The following is a list of those seas arranged by area. All figures were obtained from unless otherwise noted.

1) Philippine Sea
Area: 2,000,000 square miles (5,180,000 sq km)

2) Coral Sea
Area: 1,850,000 square miles (4,791,500 sq km)

3) South China Sea
Area: 1,350,000 square miles (3,496,500 sq km)

4) Tasman Sea
Area: 900,000 square miles (2,331,000 sq km)
Note: Figure obtained from Encyclopedia Britannica

5) Bering Sea
Area: 878,000 square miles (2,274,020 sq km)
Note: Figure obtained from

6) East China Sea
Area: 750,000 square miles (1,942,500 sq km)

7) Sea of Okhotsk
Area: 611,000 square miles (1,582,490 sq km)

8) Sea of Japan
Area: 377,600 square miles (977,984 sq km)

9) Yellow Sea
Area: 146,000 square miles (378,140 sq km)

10) Celebes Sea
Area: 110,000 square miles (284,900 sq km)

11) Sulu Sea
Area: 100,000 square miles (259,000 sq km)
Note: Figure obtained from Encyclopedia Britannica

12) Sea of ChiloƩ
Area: Unknown


(28 June 2011). Marginal Sea - Wikipedia, the Free Encyclopedia. Retrieved from: