King Cove (Aleut: Agdaaĝux̂) is a city in Aleutians East Borough, Alaska, United States. As of the 2010 census, its population was 938, up from 792 in 2000, but at the 2020 census this had reduced to 757.

King Cove is located at 55°04′20″N 162°19′05″W / 55.072125°N 162.318040°W / 55.072125; -162.318040. King Cove is on the Pacific side of the Alaska Peninsula, near the tip of that peninsula. It is 18 miles (29 km) southeast of Cold Bay and 620 miles (1,000 km) southwest of Anchorage. It lies at approximately 55° 03′ N Latitude and 162° 19′ W Longitude. The area encompasses 2.9 square miles (8 km²) of land and 2.0 square miles (5 km²) of water.

According to the U.S. Census Bureau, the city has a total area of 29.8 square miles (77 km²), of which, 25.3 square miles (66 km²) is land and 4.5 square miles (12 km²) (15.23%) is water.

King Cove first appeared on the 1940 U.S. Census as an unincorporated village. It formally incorporated in 1949.

As of the 2020 census, King Cove had a population of 757. The median age was 42.3 years. 13.6% of residents were under the age of 18 and 8.3% of residents were 65 years of age or older. For every 100 females there were 178.3 males, and for every 100 females age 18 and over there were 195.9 males age 18 and over.

0.0% of residents lived in urban areas, while 100.0% lived in rural areas.

There were 165 households in King Cove, of which 37.6% had children under the age of 18 living in them. Of all households, 39.4% were married-couple households, 23.6% were households with a male householder and no spouse or partner present, and 21.8% were households with a female householder and no spouse or partner present. About 29.1% of all households were made up of individuals and 9.6% had someone living alone who was 65 years of age or older.

There were 208 housing units, of which 20.7% were vacant. The homeowner vacancy rate was 0.0% and the rental vacancy rate was 17.6%.