Diddams Party & Toy Store – Party Supplies, Toys, Costumes

Diddams Party and Toy Stores is your one-stop shop for party supplies, balloons, custom banners, costumes, toys, candy, custom t-shirts, catering supplies, and so much more!

Our Goal Is to Help You Throw Your Best Party!

Established in 1989, Diddams Party & Toy Store is the largest, family-owned and operated party store in the Bay Area. We carry a huge selection of party supplies, toys, balloons, custom banners, custom t-shirts, candy, and costumes, plus specialty and hard-to-find items. Since we carry a variety of items from a large list of vendors, we’re able to bring you unique items that you won’t find elsewhere. We offer a wide variety of custom services to help you throw a unique and memorable celebration. Our Custom Balloon Decor is unlike anything you’ve ever seen! Diddams offers custom balloon decor for large parties and events. We also have in-store print services for banners and t-shirts. Contact Diddams Party & Toy for details and pricing.

Store Locations

Please visit Diddams’ store locations in Almaden, Mountain View, San Carlos, San Mateo, Daly City. For large orders, contact us directly at (650) 965-0138. Store Locator