It lies south of the southern tip of Kodiak Island in the western part of the Gulf of Alaska.
Sitkinak Island has a land area of 235.506 km2 (90.929 sq mi) and no resident population.
[1] From 1960 to 1977 the United States Coast Guard operated a Loran-C station on the island.
They have about 600 head of cattle which are slaughtered and processed on the island in late fall to sell as "Beyond Organic" beef.
The unique herd of cattle have thrived on the eastern and western islands of Sitkinak since 1937.