Across the river, it shares borders with Düsseldorf boroughs 5, 1 and 3.

Borough 4 is made up of four Stadtteile (city parts): The borough is home to the headquarters of Vodafone Germany, bakery chain Kamps, world-leading tea bag producer Teekanne as well as the Rheinische Post publishing house.

The borough is served by numerous railway stations and highway.

[3] Stations include a dense net of both Düsseldorf Stadtbahn light rail- and Rheinbahn tram-stations.

The Japanische Internationale Schule in Düsseldorf (JISD) first opened in a church building in Oberkassel on April 21, 1971, before moving to its permanent home in 1973.