Updated October 16, 2026
Quick answer
For Halloween 2026, the best Costco cake is a custom half-sheet cake for $27.99 with a Halloween design (serves about 48), or a 10-inch round for $16.99–$17.99 (serves about 16). Halloween falls on Saturday, October 31, so order by Wednesday, October 28 for weekend parties. Fall extras this year include the Pumpkin Bar Cake ($16.99), Pumpkin Cheesecake ($21.99) and the $5.99 pumpkin pie.
$27.99
Half sheet
~48
Servings
Oct 28
Order by
Oct 31
Halloween (Sat)
Costco Halloween Cake Prices (2026)
Costco doesn’t charge extra for a Halloween design. A spooky half sheet costs the same as a plain one.
Best for parties
Halloween Half Sheet
$27.99
Halloween 10″ Round
$16.99
Pumpkin Bar Cake
$16.99
| Item | Price | Size / Serves | How to get it |
|---|---|---|---|
| Half-sheet cake, Halloween design | $27.99 | ~48 | Custom order |
| 10-inch round, Halloween design | $16.99–$17.99 | ~16 | Custom order |
| Pumpkin Bar Cake | $16.99 | 2.5 lb · ~20 | Bakery case |
| Pumpkin Cheesecake with Whipped Topping | $21.99 | 4+ lb | Bakery case |
| Kirkland Signature Pumpkin Pie | $5.99 | 58 oz · 12 slices | Bakery case |
| Tuxedo Chocolate Mousse Cake | $18.99 | 42 oz · ~12 | Bakery case |
| Halloween cupcakes (12-pack) | $8.99 last season | 12 large | Some stores |
Halloween Designs You Can Order
In October, most warehouses add Halloween options to the cake design book at the kiosk and in the app. The exact set changes by store, but these themes show up most often:
- Jack-o’-lanterns and pumpkin patches
- Ghosts, bats and spider webs
- “Happy Halloween” lettering with orange, purple and green borders
- Fall leaves and harvest themes (good for both Halloween and Thanksgiving)
You can change the icing colors on most designs and add a short message like “Boo!” or a name. Costco doesn’t do photo cakes, licensed characters or fondant, so for something scarier, order a plain cake and decorate it at home (ideas below).
Which Halloween Cake Should You Buy?
| Your party | Best pick | Why |
|---|---|---|
| School or office party, 25–48 people | Halloween half sheet | Cheapest per slice (about $0.58) |
| Family night, 8–16 people | 10-inch round or Pumpkin Bar Cake | Right size, less waste |
| Last-minute, no time to order | Pumpkin Bar Cake or Tuxedo Cake | Sitting in the bakery case |
| Adults’ party or dessert table | Pumpkin Cheesecake | Fall flavor, looks impressive |
| Kids’ party | Half sheet + cupcakes | Easy to serve, fun colors |
How to Order a Costco Halloween Cake
- Open the Costco app (Warehouse → Order Grocery/Bakery) if your warehouse supports it, or pick up a cake order form at the bakery kiosk.
- Choose half sheet or 10-inch round, then white or chocolate.
- Pick a Halloween design from the book and your icing colors.
- Write your message exactly as it should appear.
- Pick a pickup date and time, then submit. Pay at the register on pickup.
Timing for Halloween 2026: Costco asks for at least 24 hours, but the last week of October is busy. Order by Wednesday, Oct 28 for Friday or Saturday parties. If you’re late, check the bakery case: many stores keep pre-decorated Halloween cakes at the same price. Full steps: how to order a cake from Costco.
Make a Costco Cake Scarier at Home
Order a plain chocolate half sheet, then add:
- Crushed chocolate cookies as “dirt” with gummy worms
- Candy eyes and candy corn
- Plastic spiders or mini pumpkins on top (remove before cutting)
- A drip of orange or purple ganache along the edges
More ideas: vintage Halloween cake designs, Halloween cupcake ideas and Halloween dessert ideas.
Other Costco Fall Treats for Your Party
- Pumpkin pie: $5.99, nearly 4 lb
- Pumpkin Cheesecake with Whipped Topping: $21.99
- Pumpkin Bar Cake: $16.99, 2.5 lb
- Caramel Apple Strudel Bites: $7.99
- Cupcakes and cookie trays for kids’ tables
Costco Halloween Cake FAQ
Does Costco have Halloween cakes in 2026?
Yes. Most warehouses add Halloween designs for custom half-sheet ($27.99) and 10-inch round ($16.99–$17.99) cakes in October. Some stores also stock pre-decorated Halloween cakes in the bakery case.
How much is a Costco Halloween cake?
The same as any custom Costco cake: $27.99 for a half sheet that serves about 48, and $16.99–$17.99 for a 10-inch round that serves about 16.
When should I order a Halloween cake from Costco?
At least 24 hours ahead, but for Halloween weekend (Oct 30–31, 2026), order by Wednesday, October 28.
Can I order a Costco Halloween cake online?
At warehouses that have switched to app ordering, yes: use Warehouse → Order Grocery/Bakery in the Costco app. Otherwise, use the paper form at the bakery kiosk.
Can I get a Costco Halloween cake the same day?
Not as a custom order. Check the bakery case for pre-decorated Halloween cakes, or grab a Pumpkin Bar Cake or Tuxedo Cake.
Is Costco open on Halloween?
Yes. Halloween isn’t a Costco holiday closure, and warehouses keep regular hours on October 31.
Related: Costco sheet cake · Costco birthday cakes · Costco Thanksgiving desserts · All Costco cake prices
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