Bochum ( BOHKH-uum, also US: -əm, German: [ˈboːxʊm] ; Westphalian: Baukem) is a city in North Rhine-Westphalia. With a population of 372,348 (April 2023), it is the sixth-largest city (after Cologne, Düsseldorf, Dortmund, Essen and Duisburg) in North Rhine-Westphalia, one of the most populous German federal states, and the 16th-largest city in Germany. https://en.wikipedia.org/wiki/Bochum