The Washington State Convention and Trade Center is a convention center located next to and over Interstate 5 in downtown Seattle, Washington, adjacent to Freeway Park. Planning for its construction began in 1982; construction began in 1985, and the center opened on June 18, 1988. An expansion that doubled the usable space was undertaken from 1999 to 2001. It is notable for being the location of the WTO Meeting of 1999 that was disrupted by protestors. It has over 200,000 square feet of exhibit space.

WASHINGTON STATE CONVENTION CENTER TICKETS EVENT DATE AVAILABILITY PAX West - 4 Day Pass Tickets 9/4 Sep 04, 2026 Friday PAX West - Friday Tickets 9/4 Sep 04, 2026 Fri, 10:00 AM PAX West - Saturday Tickets 9/5 Sep 05, 2026 Sat, 10:00 AM PAX West - Sunday Tickets 9/6 Sep 06, 2026 Sun, 10:00 AM PAX West - Monday Tickets 9/7 Sep 07, 2026 Mon, 10:00 AM

Events

• The 41st annual TESOL Convention was held there.
• Sakura-Con 2006, 2007 and 2008 were held there, and is contracted to return in 2009.
• Penny Arcade Expo 2007, 2008 was held there in August, and may return in 2009.