There have also been participants from:

Alaska
     Anchorage School District

U.S. VIRGIN ISLANDS
     St. John Public Schools

INTERNATIONAL
     Bogotá, Columbia
     Nairobi, Kenya
     Bangkok, Thailand
     Managua, Nicaragua
     Johannesburg, South Africa
     Kyiv, Ukraine
     Kuala Lumpur, Malaysia
     Guadalajara, Mexico
     Harare, Zimbabwe
     Kobe, Japan
     Amman, Jordan
     Moscow, Russia