The event is free.
Over 2500 people attended last year's annual party and another large crowd is expected Saturday, when the team from Radio Disney will entertain the young families and kids with music, games and prizes, including Cars II DVDs.
Kids are encouraged to wear costumes and trick 'r treat participating mall merchants.
Halloween photos will be available at the photo booth near the party.Package prices begin at $16.95.
All 14 Mall restaurants will be open for service throughout the day, inlcuding Panera, Goldberg's Deli, Red Robin, Old Country Buffet and Burger King.
For Market Place information, visit http://marketplaceatfactoria.com.
The Market Place at Factoria is home to several national brand stores in the Northwest, including Target, Old Navy, OshKosh B’Gosh, TJ Maxx, DSW Shoe Warehouse and the eastside’s only Nordstrom Rack, as well as dozens of independently owned shops, services and restaurants. The Mall is located at the crossing of Interstate 90 and Highway 405.