🇺🇸 Madison County, United States

Madison County is located in the state of Illinois, United States. It has a population of approximately 267,000 people. While it does not have any major ports or shipyards, it is situated near the Mississippi River, which can be of interest to seafarers. The city offers various recreational activities along the river, including boating and fishing, making it a potential destination for seafarers and shipowners.