Today, it houses about 4,400 citizens (including about 600 people not registered as residentials of the suburb). Südstadt is the second-smallest district of Heidelberg by population, after Schlierbach.
Currently, there are roughly 4,400 people living in it, including around 600 non-residents. Südstadt ranks as the second-smallest district in terms of population within Heidelberg, with Schlierbach having a larger population.