Popof Island (Siitikdax̂[1] in Aleut) is an island in the Shumagin Islands south of mainland Alaska. The largest community in the area, Sand Point, is located on the northwest coast. Popof Island is 10 miles (16 km) long, 5 miles (8.0 km) wide and the peak elevation is 1,550 feet (470 meters). It is located at 55°18′49″N 160°22′29″W / 55.31361°N 160.37472°W. It has a land area of 93.651 km2 (36.159 sq mi) and a total population of 578 persons at the 2020 census.
Pirate Cove on the island was developed as a major codfish fishing station.[2]
A herd of introduced bison is on the uninhabited side of the island and currently numbers about 120.