Ústí nad Labem is a city located in the northwestern part of the Czech Republic. It serves as the capital of the Ústí nad Labem Region and has a population of approximately 90,000 inhabitants.
The city is situated at the confluence of the Elbe and Bílina rivers. It forms part of the Ústí nad Labem-Chomutov agglomeration, which includes the cities of Chomutov, Teplice, Most, and Děčín, totaling about 550,000 inhabitants.