"The Port of Seattle has worked hard for its competitive advantage, and these numbers reflect that," said Linda Styrk, managing director of Seattle port's Seaport division.
The improvement was attributed to the addition of Maersk and CMA CGM containerships, the increase in vessel sizes, and the port's "fee free" policies at its terminals contributed to its success.
According to the statement, Seattle port is situated close to two major national rail hubs, and two major interstate highways, and currently maintains four terminals, with 24 cranes, 11 container berths up to 50 feet deep.
"We have the capacity for larger containerships, we remain fee-free, and have great proximity to rail facilities and major highways," said Styrk.
Meanwhile, CEO of Seattle port Tay Yoshitani was pleased with the results.
"The cargo volumes are exciting, and we are proud of our record year," said Yoshitani.
"But the thousands of family-wage jobs generated by those two million containers are even more important. We are grateful to the customers and labor partners who worked with us to make 2010 so successful."
Cargoes handled at the Port of Seattle's seaport generates over 135,000 jobs for Washington, and creates over $2 billion in annual business revenue for the region, according to the port.