Costco Kumamoto Mifune Warehouse: Grand Opening April 1st – A First Look at Kumamoto’s Newest Wholesale Destination (Mifune Town)
2021.03.11

A Sarukuma writer’s firsthand visit to “Costco Kumamoto Mifune Warehouse” in Mifune Town, Kamimashiki District. We cover family-friendly tips, access information, and opening hours for international visitors exploring Kumamoto.
Introducing Costco Kumamoto Mifune Warehouse
Hello there, Gussan here!
The long-awaited Costco Kumamoto Mifune Warehouse opens April 1st, 2021 in Mifune Town, Kamimashiki District.
【Costco Kumamoto Mifune Warehouse】
With so many people eagerly anticipating this opening, I went to scope out the current situation!
Costco currently has two locations in Fukuoka, making this Kyushu’s third store and Kumamoto’s very first.
Now that Kumamoto residents (and visitors!) can grab Costco goods without traveling all the way to Fukuoka, the number of dedicated Costco fans in the prefecture is sure to skyrocket.
Costco Kumamoto Mifune Warehouse: Membership Registration
As anyone who has shopped at Costco knows,
you’ll need a Costco Membership Card (annual fee required) to enter the store.
Sign up before the day before opening and you can join with a ¥1,000 discount!
I’ve put together a separate guide on how to register for membership.
Check it out below↓
Costco Kumamoto Mifune Warehouse: Exterior and Parking
First, the view from the road.
It’s huuuuuuge — and that’s not even the half of it!
The whole building wouldn’t even fit in my camera frame from inside the car.
The Costco Kumamoto Mifune Warehouse Gas Station — a members-only fuel station — actually opened ahead of the main store on Saturday, February 27th, 2021.
This is a Costco members-only gas station.
To use the gas station, you’ll need your Costco membership card along with a Costco-approved credit card (Costco Global Card, Costco Orico Mastercard, or any Mastercard® brand credit card), or a rechargeable Costco Prepaid Card.
Prepaid cards can only be purchased by members.
Since refueling is something we tend to forget, having a gas station right where you’re already shopping is super convenient.
Getting closer to the main Costco building.
It looks like a giant kamaboko (Japanese fish cake) board lying on its side.
Here’s a comparison shot with our mascot Binako-chan.
She’s so dwarfed you can barely tell who it is!
And here’s the entrance.
There were way more people than I expected.
Many visitors are actually here to take advantage of the early-bird membership campaign and register before the grand opening.
Details on how to sign up are in our separate guide↓
Good news for travelers: Costco accepts prescriptions even from non-members at the in-store pharmacy.
The building also has nursing rooms and diaper-changing tables for families.
(*Note: photography inside the store is not permitted)
Costco also has a Tire Center stocking premium-brand tires, with its own dedicated entrance.
A separate parking area for Tire Center customers is located right across from it.
Costco Kumamoto Mifune Warehouse: Hours and Closures
The opening hours for Costco Kumamoto Mifune Warehouse are:
Daily 10:00 AM – 8:00 PM
(*National holidays: 9:00 AM – 8:00 PM)
Closed only on New Year’s Day.
The location is just off the Mifune Interchange exit!
It’s easy to access not only from across Kumamoto Prefecture but also from Miyazaki and Kagoshima.
Costco Kumamoto Mifune Warehouse: Information
| Website | https://www.costco.co.jp/ |
| Hours | Daily 10:00 AM – 8:00 PM Holidays 9:00 AM – 8:00 PM |
| Closed | New Year’s Day |
Membership registration guide here↓
Follow us on Instagram for daily updates!
Sarukuma shares lunch spots, parks, indoor play areas and more for families exploring Kumamoto.
We’d love a follow! (*´∀`*)

Costco Kumamoto Mifune Warehouse Store Information
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Address
Mifune Town, Kamimashiki District, Kumamoto Prefecture (near Mifune Interchange)
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Hours
Daily 10:00 AM – 8:00 PM / Holidays 9:00 AM – 8:00 PM
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Closed
New Year’s Day
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Website
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No
Tatami Seating
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No
Private Rooms
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No
Kids’ Tableware
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No
Kids’ Chairs
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No
Diaper Changing Table
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No
Stroller Access
Frequently Asked Questions
What family-friendly spots do you recommend in Mifune Town, Kamimashiki District?
“Costco Kumamoto Mifune Warehouse” is easy to visit with kids and one of the most popular spots in Mifune Town. See this article for full details.
What are the hours and closures for Costco Kumamoto Mifune Warehouse?
Hours and closures may change. Please check the official website or call ahead before your visit.
*Information is current as of the time of reporting. Prices and hours are subject to change. Please confirm before visiting.
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Article Writer
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Sarukuma Editorial
Sarukuma Editorial is a small team of locals based in Kumamoto, Japan, sharing the hidden gems, hometown flavors, and seasonal experiences that make our region special. We write the kind of guide we wish we had when showing friends around — honest, practical, and made by people who actually live here.
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