Total area: 2.8 km2
land area: 2.8 km2

Comparative area: about 4.7 times the size of The Mall in Washington, DC

Land boundaries: none

Coastline: 10 km

Maritime claims:
@m5Contiguous zone: 12 nm
@m5Continental shelf: 200 m
@m5Extended economic zone: 200 nm
@m5Territorial sea: 12 nm

Climate: tropical, but generally dry; consistent northeast trade winds with little seasonal temperature variation

Terrain: mostly flat with a maximum elevation of 4 meters

Natural resources: guano (deposits worked until about 1890)

Land use: 0% arable land; 0% permanent crops; 0% meadows and pastures; 0% forest and woodland; 100% other

Environment: some low-growing vegetation

Note: strategic location 1,328 km west-southwest of Honolulu in the North Pacific Ocean, about one-third of the way between Hawaii and the Marshall Islands; Johnston Island and Sand Island are natural islands; North Island (Akau) and East Island (Hikina) are manmade islands formed from coral dredging; closed to the public; former nuclear weapons test site

NOTE: The information regarding Johnston Atoll on this page is re-published from the 1989 World Fact Book of the United States Central Intelligence Agency. No claims are made regarding the accuracy of Johnston Atoll Geography 1989 information contained here. All suggestions for corrections of any errors about Johnston Atoll Geography 1989 should be addressed to the CIA.