St. Lorenzen (; ) is a comune (municipality) in South Tyrol in northern Italy, located about northeast of Bolzano. As of 30 November 2010, it had a population of 3,752 and an area of .
St Lorenzen borders the following municipalities: Bruneck, Kiens, Pfalzen, Lüsen, Mareo, and Rodeneck.
As of 30 November 2010, it had a population of 3,752 and an area of .
The municipality of St Lorenzen contains the frazioni (subdivisions, mainly villages and hamlets) Ellen (Elle), Fassing (Fassine), Runggen (Ronchi), Montal (Mantana), Pflaurenz (Floronzo), Saalen (Sares), Sonnenburg (Castelbadia), Stefansdorf (Sante Stefano), St Martin (San Martino), Moos (Palù), Lothen, and Onach.
St Lorenzen borders the following municipalities: Bruneck, Kiens, Pfalzen, Lüsen, Mareo, and Rodeneck.
The emblem represents Saint Laurence, with a vert palm in his right hand and a grill on the left, on argent. The emblem is used by the 17th century, but appears in the seal since 1271.
According to the 2024 census, 93.84% of the population speak German, 3.95% Italian and 2.22% Ladin as first language.
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