Karlskoga straddles the northern shore ofLake Möckeln.[4][5] Among the city's main topographical features are the two rivers, Timsälven and Svartälven. Other features include anesker,Rävåsen, designated as a nature reserve, and contiguous with thecity center.[6]
The broader Karlskoga area distinguishes itself from its surrounding regions, e.g. the Närke Plain, with its abundantwoodlands and hills, which made it better suited for activities beyondagriculture, such as theironwork industry.
Karlskoga evolved around thearms manufacturerBofors, and by 1970, it counted almost 10,000 employees.[7] The many jobs in the arms industry during the 1900s multiplied Karlskoga's population. Today, Karlskoga is still a thriving center of the arms industry, but its economy is more diverse than during the peak-Bofors era.
Karlskoga was initially calledMöckelns bodar,[9] Möckelsboderna[4] orBodarna,[10] being derived from cottages located at the shore of lake Möckeln.[11] The locality's name "Karlskoga" was coined in 1591, and has been in use ever since. It is derived fromCharles (Karl) IX,[4] withskog meaning woods.[12]
Karlskoga and its surrounding area were sparsely populated in the beginning of the 16th century.[11] It was not until the 1580s that the area started to see an increase in population, when Charles IX made people settle in the area. EthnicSwedes (people from the historical provinces ofNärke andSödermanland), and particularlyFinns,[a] began to settle the area,[12][13] where they took up the farming methodslash-and-burn. They were followed byHuguenots, fleeing religious oppression inFrance,[14] and by other groups including bothDutch andGerman settlers, mostly skilledmetalsmiths.[14]
The parish of Karlskoga was established in 1586 and awooden church was soon built. It was small in size, and was solely made up of thesacristy still preserved at this site,[15] which was a consequence ofpopulation increase in the years prior. The first priest elected was Olaus Gestricius[16] (herr Olaf på Möckelnsbodar)[17] by the late 1500s.[18]
During the 17th century, fourteen smallironworks and eightwater-driven hammers for producingbar iron were established. This encompassed the emergence of both Björkborn Works and Bofors Works. As the owner of both ironworks,Sigrid Ekehielm assumed the leadership of an industrial empire.[19]
Most of the original ironworks were still operating in the 1860s, but the dominating ironworks was the one in nearbyBofors. In 1871, Bofors produced 6,124 metric tons ofiron, more than any other plant in Sweden. In 1882, Karlskoga Parish (socken) had 11,184 inhabitants.
The town of Karlskoga has evolved around Bofors, which in the late 19th century was transformed from an iron works to a manufacturer ofcannon and in the 20th century to a more diversified defense industry.Bofors was incorporated in 1873 and has since the 1880s been specializing in the lucrative manufacture of cannon.
Even though he died in his villa inSanremo,Italy and had a home inParis, it was decided that his legal residence was at Björkborn in Karlskoga, which had been his final residence in Sweden.[23][24] Because of that it was here his famoustestament that was written in Paris in 1895 was legally registered, which eventually made it possible to establish theNobel Prize.
In 1940 the town of Karlskoga and the surrounding area (the same territory as today's Karlskoga Municipality) got the formal title of acity (stad). Since 1971 this term has no legal meaning and only the built-up area is considered ade facto town.
Karlskoga spent most of the 20th century as a growing company town to Bofors. Only with thedemilitarization in the most recent decades has this started to be a problem for the town. There were 8,500 workers in Bofors in 1980, but the number had decreased to 2,600 as of 1998.
On January 10, 1985, agas leak occurred in Karlskoga, when a chemical plant releasedsulfuric acid gas over the area. The incident resulted in the evacuation of 300 people and left 20 individuals injured.[25][26]
During the first decade of the 21st century, approximately 1,000 apartments inmulti-family buildings were demolished due to reduced demand for firearms products. This resulted in the population dwindling to 29,600.[27] During the 2010s, however, the population trend reversed, and the numbers began to rise.
In 2023, the magazineFokus ranked Karlskoga as the fifteenth best municipality to live in Sweden.[28]
Karlskoga is situated more or less in a low mountainous ridge calledKilsbergen that separatesNärke fromVärmland. Such areas have traditionally been financially poor. This led to a significantSwedish emigration to North America from the district in the latter half of the 19th century.Stockholm, Wisconsin was for instance founded in 1854 by immigrants from Karlskoga.[29]
The city borders on the municipalities ofHällefors andStorfors to the north;Lekeberg to the east; Degerfors and the Lake Möckeln to the south; andKristinehamn to the west.
The many residential communities of Karlskoga express a character distinct to thecompany town.Million programme residential buildings can be found in enclaves such as Baggängen, Ekeby, Sandviken andSkranta.
The Rosendal neighbourhood, historically significant for the architecture of its homes,[30] planned community by the Bofors Works, was designated as an area of national interest forcultural heritage.[31]
Population size may be affected by changes in administrative divisions.
Karlskoga's population grew steadily from the time when arms manufacturer Bofors had started to expand, until the 1970s. Thereafter, it underwent a sharp decline (down by almost 10,000 inhabitants over a 30-year period), with signs of recovery only in the very last few years as of 2021.[32][33] Nevertheless, with 27,386 inhabitants, Karlskoga is the second most populous place in Örebro County followingÖrebro (126,009).
The presence of foreign residents in Karlskoga accounts for 16.5% of inhabitants. This compares with 19.1% in the town Örebro.
In the 1580s, a total of five Finns settled in Möckelsbodar (present-day Karlskoga).[36] In 1649, 32 of a total of 186agricultural holdings were occupied by Finns.[37]
In 2017, the three most commonly reported ethnic origins (by-birth) overall were Finns (935 or 3.1 per cent),Syrians (650 or 2.1 per cent) andSomalis (409 or 1.3 per cent).[c]
Various religious denominations and congregations are based in Karlskoga, including theChurch of Sweden, which has several churches in Karlskoga. The oldest church, theKarlskoga Church, is the parish church in the Karlskoga parish and can be traced back to the 1600s. Later churches built in the city include the Karlberg Church and the Rävåsen Church. There are also severalfree churches represented in Karlskoga. TheSwedish Pentecostal Movement has its own church, while theJehovah's Witnesses have theirKingdom Hall.
A baptist congregation, the Bofors Baptist congregation, was established in 1884,[40] and St. George's Catholic congregation was established in 1956.[41]
Karlskoga Tidning-Kuriren stands as Karlskoga's primary and soledaily newspaper. It formed through the merger ofKarlskoga Tidning andKarlskoga Kuriren, the city's two former daily newspapers, it came into existence in 2020.[48] There is also a commercialradio station based in Karlskoga,Cityradion.
Alfred Nobel. He lived at theBjörkborn Manor house, on the property of theBofors works, which he owned. His residency there is the reason his will was adjudicated in Karlskoga, establishing theNobel Prizes.