High Quality Content by WIKIPEDIA articles! The Port of Jacksonville (JAXPORT) is an international trade seaport on the St. Johns River in Jacksonville, Florida. The newest port in the United States, it carries over 21 million tons of cargo each year and has an annual impact of over $19 billion, including 65,000 jobs. It serves the Greater Jacksonville Metropolitan Area, and is the second largest handler of vehicles in the United States with 656,805 in fiscal year 2008. Jaxport was the 36th largest port in the country and third in Florida, behind the Port of Tampa and Port Everglades in 2008.