Joroinen
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Joroinen (Jorois in Swedish) is a municipality of Finland.
It is located in the province of Eastern Finland and is part of the Southern Savonia region. The municipality has a population of 5,723 (2003) and covers an area of 711.57 kmē of which 134.85 kmē is water. The population density is 8.0 inhabitants per kmē.
The municipality is unilingually Finnish.