Kaiserswerth is one of the oldest quarters of the City of Düsseldorf, part of Borough 5. It is in the north of the city and next to the river Rhine. It houses the Kaiserwerth Deaconesses' Institute where Florence Nightingale worked. Kaiserswerth has an area of 4.80 km2 (1.85 sq mi), and 7,923 inhabitants (2020).

Düsseldorf is the capital city of North Rhine-Westphalia, the most populous state of Germany. It is the second-largest city in the state after Cologne, and the seventh-largest city in Germany, with a 2022 population of 629,047.