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Party City O'Fallon, MO - O'Fallon Retail Walk Shopping Center

2935 Highway K
O'Fallon, MO 63368
(636) 281-0912
Store# 5330
Flagship Store
A whole new Halloween experience
Coming Soon!
See store ad.
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About Us

Shop Party City in O'Fallon for Halloween Costumes, Decorations & Supplies

Are you looking for the ultimate Halloween store in O'Fallon, MO? Party City O'Fallon Retail Walk Shopping Center is that and more. Because Halloween is our biggest season, every year our retail space is transformed into a Halloween super store jam-packed with costumes, props, and all the stuff of spooky make-believe.

In our O'Fallon Halloween store, we carry all styles and sizes of costumes, a huge assortment of costume accessories, Halloween props, party supplies, and more. Because we also manufacture Halloween merchandise, many of the products we sell are exclusive to Party City — you can't buy them anywhere else. Costumes, accessories, and decorations are easy to find, thanks to the careful layout of our shelves and aisles.

Why Shop Party City O'Fallon as Your Halloween Store?

Ongoing customer service
For us, Halloween is an ongoing business. All year we offer a core selection of costumes and accessories unavailable in other shops in O'Fallon, MO, especially during the off-season. And unlike temporary Halloween stores that vanish in November, Party City O'Fallon is open for business all year at a permanent location.

30 years in the Halloween business
Founded in 1986, Party City Corporation is one of the original specialty party retailers, and has grown into the largest chain of party stores in the United States. We specialize in party supplies and focus on Halloween as the single biggest party season.

Commitment to product standards
We test all products for quality and safety. If it doesn't pass muster, we won't offer it for sale.

Ease of shopping
Store isles are organized by product type, and hundreds of outfits are featured on a "costume wall," making it a breeze to compare one costume to another. Store associates are always standing by to help, and to answer any questions you may have. All stores are equipped with fitting rooms so that you can try on your costume before you buy.

Halloween Store Inventory Includes:

  • Halloween costumes for kids & adults
    • Baby & toddler costumes
    • Boys', girls' & teen costumes
    • Licensed costumes: Star Wars, Disney, Marvel, etc.
    • Plus size costumes
    • Deluxe costumes
    • Pet costumes
  • Costume accessories
    • Wigs for kids & adults
    • Tutus, petticoats & undergarments
    • Leggings & hosiery
    • Halloween makeup
    • Hats, gloves & shoes
    • Masks & costume weapons
  • Decorations & props
    • Yard decorations
    • Animated props
    • Family-friendly decorations
    • Inflatable props
    • Hanging, window & wall decorations
    • Stretch spider webs
    • Fog machines & Halloween lights
  • Halloween party supplies
    • Treat bags & lights
    • Pumpkin carving supplies
    • Skull pitchers & mugs
    • Baking pans & cupcake stands
    • Complete Halloween party themes