The top 25
tonnage ports handled a total of 1,744 million tons of cargo, about 71.3 percent
of the tonnage handled by the top 100 ranked ports. The top 100 ports account
for 95.5 percent of total tonnage handled by U.S. ports. The highest
tonnage figures are associated with ports that handle large quantities of both
liquid bulk cargo (e.g., petroleum or chemicals) and dry bulk cargo (e.g., coal
or grain), such as the ports of Houston, South Louisiana, and Corpus Christi. The 2020 top
tonnage port was the port of Houston.