Northwest Seaport Alliance (Seattle–Tacoma)

The Northwest Seaport Alliance unites the ports of Seattle and Tacoma, operating 10 container terminals with 23 berths and 47 cranes, with BNSF and Union Pacific rail access.

History

The Port of Seattle was formed in 1911 and the Port of Tacoma in 1918. After decades of rivalry, the Federal Maritime Commission approved their marine cargo alliance on July 23, 2015, and it was formally created on August 4, 2015.

Port statistics

Container imports, Seattle + Tacoma (TEUs)

1,244,260

as of 2025 · Source

Container terminals

10

as of 2026 · Source

Cranes

47

as of 2026 · Source

1. Carrier name hidden

   Tacoma, WA

   138 trucks · about 3.1 mi

2. Carrier name hidden

   Tacoma, WA

   138 trucks · about 0.4 mi

3. Carrier name hidden

   Tacoma, WA

   111 trucks · about 0.4 mi

4. Carrier name hidden

   Seattle, WA

   75 trucks · about 19.1 mi

5. Carrier name hidden

   Tacoma, WA

   63 trucks · about 3.1 mi

6. Carrier name hidden

   Seatac, WA

   60 trucks · about 13.8 mi

7. Carrier name hidden

   Tacoma, WA

   60 trucks · about 8.2 mi

8. Carrier name hidden

   Tacoma, WA

   43 trucks · about 5.0 mi

9. Carrier name hidden

   Seattle, WA

   35 trucks · about 19.1 mi

10. Carrier name hidden

    Tacoma, WA

    27 trucks · about 0.4 mi