We are a leading container gateway in the United States. The Northwest Seaport Alliance handled nearly $76 billion of waterborne trade with 176 trading partners globally in 2024. Marine cargo operations at NWSA facilities support over 52,000 jobs and drives $14 billion in business output for Washington state*. On this page, you can find monthly and historical cargo by business sector. In-depth statistics for previous years can also be found in our annual trade reports, below. Cargo volumes are for NWSA-managed facilities unless otherwise indicated.
* Community Attributes Economic Impact Analysis, July 2025
Volume data
Annual Trade Reports
Recent monthly cargo reports
- NWSA records strongest September since 2005 as import container volumes surgeOctober 17, 2018
- NWSA’s container volumes dip in August September 17, 2018
- NWSA July 2018 volumes up nearly 11 percent August 17, 2018
- NWSA June 2018 volumes show 8.6 percent increaseJuly 19, 2018
- NWSA May 2018 import volumes increaseJune 19, 2018
- NWSA’s export volumes grew in April; 279,715 TEUs moved through gateway May 18, 2018
- NWSA container volumes decline post-Lunar New YearApril 16, 2018
- NWSA container volumes grow 6 percent in FebruaryMarch 19, 2018
- NWSA container volumes decline in JanuaryFebruary 21, 2018
- NWSA international container volumes grew 4 percent in 2017January 18, 2018
- NWSA container volumes see 2 percent increase through NovemberDecember 19, 2017
- NWSA container volumes see 4 percent increase through OctoberNovember 17, 2017