Liljendal is a municipality of Finland.
It is located in the province of Southern Finland and is part of the Eastern Uusimaa region. The municipality has a population of 1,463 (2004-12-31) and covers an area of 119.76 km² of which 5.68 km² is water. The population density is 12.82 inhabitants per km².
The municipality is bilingual, with majority being Swedish and minority Finnish speakers.
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