Karlskoga is a town in the Swedish province of Örebro County and the historic county of Värmland.
The chief town of the same name is relative to the area saw the second largest city in the historical province of Värmland. This is due to the fact that the building is very scattered.
The main industry for the local foundation is the defense industry with the company Bofors as the main operation. Investment of the company building it was careful to choose a place far inland, which was well protected by forest areas, making it hard would for any enemies to achieve this. As Karlskoga in the middle of the 20th century was to receive city status was given to whether the city or Karlskoga Bofors should be called, and it was decided for the present name.
The political relaxations and thus the decline in the defense industry had a negative impact on the site. Around 1970, about 10,000 people working at Bofors AB and throughout the community lived about 40,000 people. Today about 2,000 people work in the defense contractor and the population of the municipality decreased by approximately 10,000.
About six kilometers north of the city lies the motorsport race Karlskoga Motor Stadium, the oldest permanent race track in Sweden. On the slopes of the Grand Prix of Sweden to the motorcycle world championship was held in 1978 and 1979, among others.