Josefstadt is the eighth district of Vienna. It is near the center of Vienna and was established as a district in 1850, but borders changed later. Josefstadt is a heavily populated urban area with many workers and residential homes. It has a population of 24,279 people. With an area of 1.08 km², Josefstadt is the smallest district in Vienna, and was name…Josefstadt is the eighth district of Vienna. It is near the center of Vienna and was established as a district in 1850, but borders changed later. Josefstadt is a heavily populated urban area with many workers and residential homes. It has a population of 24,279 people. With an area of 1.08 km², Josefstadt is the smallest district in Vienna, and was named after the Holy Roman Emperor Joseph I.