What city is represented by the airport code DCA?

The airport code DCA stands for Ronald Reagan Washington National Airport, which is located in Washington, D.C. This airport primarily serves the metropolitan area of Washington, D.C., and is one of the major airports serving the capital of the United States. Airport codes are typically derived from the location’s name, and DCA effectively communicates the city's name and its significance as a governmental hub. Understanding airport codes is essential for travel and logistics planning, and recognizing DCA as representing Washington, D.C., enhances familiarity with U.S. airports and their codes.