🇺🇸 Black Jack, United States

Black Jack is a small city located in St. Louis County, Missouri, United States. It has a population of approximately 6,800 people. Although it is not directly situated on the coast, it is relatively close to the Mississippi River, which provides opportunities for seafarers, shipowners, and crewing companies to explore. However, it does not have any ports, shipyards, or factories producing ship parts.