Thorne Bay is a city in Prince of Wales-Hyder Census Area, Alaska, United States. At the 2000 census the population was 557. According to the United States Census Bureau, the city has a total area of 30.4 square miles (79 km sq), of which, 25.5 square miles (66 km sq) of it is land and 4.8 square miles (12 km sq) of it (15.85%) is water.
As of the census of 2000, there were 463 people, 219 households, and 157 families residing in the city. The population density was 21.8 people per square mile (8.4/km²). There were 327 housing units at an average density of 12.8 per square mile (4.9/km²). The racial makeup of the city was 92.46% White, 2.87% Native American, 0.18% Pacific Islander, 0.54% from other races, and 3.95% from two or more races. 1.26% of the population were Hispanic or Latino of any race.
In the1970's-80's Thorne Bay was the World's largest logging camp and it still holds the record. Thorne Bay also has the worlds largest tree grapple, which local teenagers call "the claw." The grapple is placed in front of the small town, with a sign that says Thorne Bay.