Popof Island is an island in the Shumagin Islands

Shumagin Islands

The Shumagin Islands are a group of 20 islands in the Aleutians East Borough south of the mainland of Alaska, USA, at54°54'–55°20' North 159°15'–160°45' West. The largest islands are Unga Island, Popof Island, Korovin Island, and Nagai Island. Other islands include Andronica, Big Koniuji, Little...

 south of mainland Alaska

Alaska

Alaska is the largest state in the United States by area. It is situated in the northwest extremity of the North American continent, with Canada to the east, the Arctic Ocean to the north, and the Pacific Ocean to the west and south, with Russia further west across the Bering Strait...

. The largest community in the area, Sand Point

Sand Point, Alaska

Sand Point, also known as Qagun Tayagungin, is a city in Aleutians East Borough, Alaska, United States. At the 2000 census the population was 952. In 2009, the population was 962. It is located on northwestern Popof Island, off the Alaska Peninsula...

, is located on the northwest coast. Popof Island is 10 miles (16 km) long, 5 miles (8 km) wide and the peak elevation is 1,550 feet (472 meters). It is located at 55°18′49"N 160°22′29"W. It has a land area of 93.651 km² (36.159 sq mi) and a total population of 952 persons at the 2000 census

United States Census, 2000

The Twenty-second United States Census, known as Census 2000 and conducted by the Census Bureau, determined the resident population of the United States on April 1, 2000, to be 281,421,906, an increase of 13.2% over the 248,709,873 persons enumerated during the 1990 Census...

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A herd of introduced bison is on the uninhabited side of the island, and currently numbers 120.