Kumoricon began in 2003 in Springfield, OR (Eugene area) for two days on Thanksgiving weekend. Since 2004, it has been located in the Portland metro area and held all three days of Labor Day weekend. Kumoricon is Oregon’s largest anime convention, and has always been all volunteer and all fan-run.

Attendance figures: Most figures are estimates. Attendance is measured by count of paid attendance or membership purchases at standard attendee rates. Staff, exhibitors, guests, and complimentary badges are not counted. VIP badges are counted. A weekend badge is counted once regardless of how many days the person attended. Non-picked up and non-attending paid pre-registered badges are counted. Multiple single-day badges by a single person are counted at the number of badges purchased. (This last category is typically very low in number.)

Web Site History

• Kumoricon 2006 web site – In this copy, the header has already been replaced with the 2007 teaser art and mascot. We will have a version with the original 2006 header and mascot later. Please check back.
• Kumoricon 2007 web site
• Kumoricon 2008 web site – Archive coming shortly!
  • Winter Masquerade Ball web pages – In February 2008, Kumoricon held a formal masquerade ball as a stand-alone event.
• Kumoricon 2009 web site – Archive coming shortly!
  • Dance Dance Kumoricon web pages – In July 2009, Kumoricon held a gaming-themed dance as a stand-alone event.