🇺🇸 Columbia, United States

Columbia, the capital city of the United States, is located in the District of Columbia. It has a population of approximately 700,000 people. While it is not a coastal city, it is of interest to seafarers, shipowners, and crewing companies due to its proximity to major ports on the East Coast, such as Baltimore and Norfolk. It also serves as the headquarters for various governmental agencies related to maritime affairs.