Alsergrund is the ninth district of Vienna, Austria (German: 9. Bezirk, Alsergrund). It is located just north of the first, central district, Innere Stadt. Alsergrund was incorporated in 1862, with seven suburbs. The area is densely populated, with a lot of government-built housing. According to the census of 2001, there were 37,816 inhabitants over 2.99 square km (1.15 sq.