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Tromøy (island)

Tromøya / Tromøy
Historic: Tromø
Nickname: The pearl of Southern Norway
Norway - Tromøy.png
Location in southeastern Norway
Tromøya is located in Aust-Agder
Tromøya
Tromøya
Location of the island
Tromøya is located in Norway
Tromøya
Tromøya
Location of the island
Geography
Location Aust-Agder, Norway
Coordinates 58°27′40″N 8°53′36″E / 58.4612°N 08.8932°E / 58.4612; 08.8932Coordinates: 58°27′40″N 8°53′36″E / 58.4612°N 08.8932°E / 58.4612; 08.8932
Area 28.6 km2 (11.0 sq mi)
Area rank 1st in Aust-Agder
Length 12.5 km (7.77 mi)
Width 3.8 km (2.36 mi)
Highest elevation 94 m (308 ft)
Highest point Vardåsen
Administration
Norway
County Aust-Agder
Municipality Arendal
Demographics
Population 5,300 (2015)
Pop. density 185 /km2 (479 /sq mi)

Tromøya or Tromøy (historic: Tromø) is the largest island in Southern Norway. The 28.6-square-kilometre (11.0 sq mi) island is entirely located in the municipality of Arendal in Aust-Agder county, Norway. The island has about 5,300 residents (in 2015) which gives it a population density of about 185 inhabitants per square kilometre (480/sq mi). The island is located directly across the harbor from the town of Arendal. The highest point on the island is the 95-metre (312 ft) tall Vardåsen. The island is separated from the mainland to the north by the Tromøysundet strait and it is separated from the island of Hisøya to the southwest by the Galtesundet strait.

The 400-metre (1,300 ft) long Tromøy Bridge (Norwegian: Tromøybroa) is the suspension bridge that has been the only road connection to the mainland since it was completed in 1961. There is also a passenger ferry that takes six minutes to transport riders from Skilsø to the town of Arendal. The company Aker Pusnes is located in Pusnes. It is a designer and supplier of all types of deck machinery and mooring systems for marine and offshore applications.

Historically, the island belonged to the municipality of Østre Moland until 1878. From 1878 until 1992, the island was part of the municipality of Tromøy. Since 1992, the island has been a part of the municipality of Arendal.

The name of the island (originally the parish) historically was Tromø, but more recently it has been spelled Tromøy or Tromøya. These names come from the Old Norse word Þruma which means "rim", "edge", or "border". The suffix , øy, or -øya all mean "island".


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