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 the largest fan convention in the Portland, OR / Vancouver, WA metro area, 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.)

Mini-Events

Since 2007, Kumoricon has produced several one-day mini-events, including dances and “mini-cons”.

This list only includes events which were hosted or co-hosted by Kumoricon. It does not include events hosted only by other organizations at which Kumoricon provided activities or content.

Website History

• Kumoricon 2006 website
  • As archived, with 2007 teaser banner
  • With 2006 banner displayed during the convention
• Kumoricon 2007 website
• Kumoricon 2008 website
  • Winter Masquerade Ball web pages – In February 2008, Kumoricon held a formal masquerade ball as a stand-alone event.
  • Summer Swing Dance web pages – In July 2008, Kumoricon hosted a swing dance as a stand-alone event.
• Kumoricon 2009 website
  • (Please Don’t Let It) Snow Ball web pages – In February 2009, Kumoricon held an anime-themed dance as a stand-alone event.
  • Dance Dance Kumoricon web pages – In July 2009, Kumoricon held a gaming-themed dance as a stand-alone event.
• Kumoricon 2010 website
  • Kumori-Cat Ball web pages – In April 2010, Kumoricon held a cosplay-themed dance as a stand-alone event.
• Kumoricon 2011 website