Merchant marine:
total: 418
country comparison to the world: 26
by type: barge carrier 6, bulk carrier 58, cargo 58, carrier 3, chemical tanker 30, container 87, passenger 18, passenger/cargo 56, petroleum tanker 45, refrigerated cargo 3, roll on/roll off 27, vehicle carrier 27
foreign-owned: 86 (Australia 1, Bermuda 5, Canada 1, Denmark 34, France 4, Germany 3, Malaysia 2, Norway 10, Singapore 17, Sweden 5, UK 4)
registered in other countries: 734 (Antigua and Barbuda 6, Australia 2, Bahamas 100, Belgium 2, Bermuda 25, Cambodia 4, Canada 9, Cayman Islands 54, Comoros 2, Cyprus 7, Georgia 1, Greece 7, Hong Kong 31, Indonesia 2, Ireland 2, Isle of Man 2, Italy 21, Liberia 39, Luxembourg 3, Malta 35, Marshall Islands 168, Netherlands 15, Norway 9, Panama 102, Portugal 4, Saint Kitts and Nevis 1, Saint Vincent and the Grenadines 19, Sierra Leone 1, Singapore 33, South Korea 8, UK 11, unknown 8) (2010)
Ports and terminals:
cargo ports (tonnage): Baton Rouge, Corpus Christi, Houston, Long Beach, Los Angeles, New Orleans, New York, Plaquemines, Tampa, Texas City
container ports (TEUs): Los Angeles (7,849,985), Long Beach (6,350,125), New York/New Jersey (5,265,058), Savannah (2,616,126), Oakland (2,236,244), Hampton Roads (2,083,278) (2008)
cruise departure ports (passengers): Miami (2,032,000), Port Everglades (1,277,000), Port Canaveral (1,189,000), Seattle (430,000), Long Beach (415,000) (2009)
(Source: website of U.S. Central Intelligence Agency)