Which city is associated with the airport code DBQ?

The airport code DBQ is associated with Dubuque, Iowa. Each airport in the United States is assigned a unique three-letter code by the International Air Transport Association (IATA) to simplify identification and communication. DBQ specifically designates Dubuque Regional Airport, which serves the city of Dubuque.

In this case, the other options correspond to different cities with their own distinct airport codes. Des Moines, for example, is represented by DSM; Dallas typically refers to DFW for Dallas/Fort Worth International Airport; and Denver is associated with DEN for Denver International Airport. Understanding these codes is essential for navigating air travel logistics and planning.