Karluk is a census-designated place located in the U.S. state of Alaska. It is within Kodiak Island Borough 88 miles southwest of Kodiak City. The total area of Karluk is 57.9 square miles at 57°34′41″N 154°21′45″W. It is elevated by 137 feet above sea level. Education in Karluk is served by the Kodiak Island Borough School District. There were 37 people living in the place according to the 2010 census data. The population density was 0.7/sq mi. Karluk has Zip code 99608 and Area code 907.