Where is Södermalm Sweden? Map of Södermalm

In the neighborhood of Södermalm something that you will not miss in Stockholm is the variety; being a city with so much history, it has very different neighborhoods that make it a multifaceted and entertaining city. There you will find very diverse corners that will help you to understand more thoroughly not only the history of this land but also the European past. Among those little corners that you can not miss is Södermalm.

Where is södermalm?
What state is Stockholm Sweden in?