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What is the city code for Denver?

  1. DCA

  2. DEN

  3. MCO

  4. YVR

The correct answer is: DCA

The city code for Denver is DEN. This code is specifically designated for Denver International Airport, which serves as the primary airport for the city. Each airport in the United States has a unique three-letter IATA code that helps travelers identify it easily, and DEN is well-known among those codes. DCA refers to Ronald Reagan Washington National Airport, located in Washington, D.C. MCO is the code for Orlando International Airport in Florida, and YVR designates Vancouver International Airport in Canada. These codes are associated with different cities, making them distinct from Denver's unique designation.