Costco Phone Number: What Is It & How to Contact

Kayla Jul 09, 2026

When it comes to shopping at Costco, one of the most frequently asked questions is, "What is the Costco phone number?" Whether you're a current member looking for assistance or a potential customer interested in joining, having the right contact information can save you time and ensure you get the help you need.

the table shows different types of contact cards
the table shows different types of contact cards

Costco Wholesale Corporation, more commonly known as Costco, is a multinational corporation that operates a chain of warehouse clubs. With a vast array of products and services, it's no surprise that customers often have questions or need assistance. In this comprehensive guide, we'll provide you with the Costco phone number, along with other useful contact information, and discuss various ways to get in touch with the company.

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List Of Numbers On A Phone Screen, Caller Ids, Cell Phone Codes, Phone Life Hacks, Emergency Sos Phone Tips, Emergency Phone Number Guide, Important Phone Number List, Emergency Phone Numbers, Phone Call Log With Numbers

Costco Customer Service Phone Number

If you're looking for the main Costco customer service phone number, you can reach out to their dedicated customer service team at:

an iphone screen showing receipts on it's display in front of a computer monitor
an iphone screen showing receipts on it's display in front of a computer monitor

1-800-774-2678

This toll-free number is available for customers in the United States and Canada. If you're calling from outside these countries, you can find the appropriate contact information on the Costco website's international contact page.

some important phone codes
some important phone codes

When dialing this number, you'll be connected to an automated system that will guide you through various options to help you find the information you need. If your issue requires speaking to a customer service representative, the system will connect you to the appropriate department.

Costco Business Hours

Before contacting Costco customer service, it's essential to know their business hours. The customer service department is typically open:

an iphone screen showing the order form for a customer's phone number and other details
an iphone screen showing the order form for a customer's phone number and other details
  • Monday through Friday: 6:00 AM to 6:00 PM (PST)
  • Saturday and Sunday: 7:00 AM to 4:00 PM (PST)

These hours may vary depending on the region and local holidays. It's always a good idea to check the Costco website for the most up-to-date information.

Costco Customer Service Email

an advertisement for the phone number list
an advertisement for the phone number list

In addition to the phone number, Costco offers an email contact option for customers who prefer written communication. You can reach out to the customer service team via email at:

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They just annoying
the coup page for costco next, the members only portal most shoppers miss
the coup page for costco next, the members only portal most shoppers miss
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Hahahhha
an image of a cell phone with the text blocked contacts on it's screen
an image of a cell phone with the text blocked contacts on it's screen
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Phone Number to Order Pizza at Costco in Los Angeles
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the numbers to call when bored
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an iphone screen showing the settings and numbers for different items in order to receive them
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an iphone screen showing the calendars for different events
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Call all numbers
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an iphone screen with the text call this number it's so cute
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Free numberss
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the numbers to call when bored are in white and black letters on purple background, with an
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411 224 235 my phone number
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someone is texting on their phone while sitting in the back of a car,
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proof for client tell am say you really love him
JJ Maybank
JJ Maybank
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an iphone screen showing the settings for different audio and video options, including ringtones
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phone number trick

When sending an email, be sure to include your full name, contact information, and a detailed description of your issue or inquiry. This will help the customer service team better assist you.

Costco Membership Inquiries

If you're interested in becoming a Costco member or have questions about your existing membership, you can contact the membership services department for assistance.

Membership Services Phone Number: 1-800-774-2678

When calling this number, select the appropriate option for membership services from the automated menu. You can also find detailed information about Costco memberships, including benefits and pricing, on the company's website.

Costco Membership Cancellation

If you're looking to cancel your Costco membership, you can do so by contacting the membership services department. To cancel your membership, you'll need to provide your full name, membership number, and a valid reason for cancellation.

You can cancel your membership by:

  • Calling the membership services phone number at 1-800-774-2678
  • Visiting your local Costco warehouse and speaking to a membership specialist
  • Sending a written request to Costco's membership cancellation address:

Costco Wholesale

Attn: Membership Cancellation

999 Lake Drive

Issaquah, WA 98027-6201

When sending a written request, be sure to include your full name, membership number, and a brief explanation for your cancellation.

Costco Executive Membership Upgrade

If you're interested in upgrading your Costco membership to an Executive Membership, you can do so by contacting the membership services department or visiting your local Costco warehouse. Executive Memberships offer additional benefits, such as an annual 2% reward on qualified purchases and access to exclusive savings.

To upgrade your membership, you can:

  • Call the membership services phone number at 1-800-774-2678
  • Visit your local Costco warehouse and speak to a membership specialist

Before upgrading, be sure to review the benefits and pricing for Executive Memberships on the Costco website to ensure it's the right choice for you.

Costco Business and Corporate Inquiries

If you're a business owner or representative interested in partnering with Costco or have questions about Costco's business services, you can contact the business services department for assistance.

Business Services Phone Number: 1-800-774-2678

When calling this number, select the appropriate option for business services from the automated menu. You can also find detailed information about Costco's business services, including purchasing programs, delivery options, and catering services, on the company's website.

Costco Wholesale Business Account

If you're interested in opening a Costco Wholesale business account, you can do so by contacting the business services department or visiting your local Costco warehouse. Business accounts offer additional benefits, such as access to exclusive pricing, dedicated account management, and streamlined ordering processes.

To open a business account, you can:

  • Call the business services phone number at 1-800-774-2678
  • Visit your local Costco warehouse and speak to a business services representative

Before opening a business account, be sure to review the benefits and pricing on the Costco website to ensure it's the right choice for your business.

Costco Catering Services

Costco offers catering services for various events, including weddings, corporate events, and private parties. If you're interested in learning more about Costco's catering services or placing an order, you can contact the catering department for assistance.

Catering Phone Number: 1-800-774-2678

When calling this number, select the appropriate option for catering from the automated menu. You can also find detailed information about Costco's catering services, including menus, pricing, and ordering options, on the company's website.

In addition to the phone number, you can also find your local Costco warehouse's catering contact information by using the store locator tool on the Costco website. This will provide you with the phone number and email address for the catering department at your nearest warehouse.

Costco Travel

Costco Travel is a full-service travel agency that offers a wide range of vacation packages, cruises, and travel services. If you have questions about Costco Travel or need assistance with an existing booking, you can contact the Costco Travel customer service team.

Costco Travel Phone Number: 1-866-834-3066

This phone number is available for customers in the United States and Canada. If you're calling from outside these countries, you can find the appropriate contact information on the Costco Travel website.

When calling this number, you'll be connected to a customer service representative who can assist you with your travel needs. You can also find detailed information about Costco Travel's services, including vacation packages, cruises, and travel insurance, on the Costco Travel website.

Costco Travel Bookings and Cancellations

To make a new booking or cancel an existing reservation with Costco Travel, you can contact the customer service team by phone or through the Costco Travel website. When making a new booking, be sure to have your preferred travel dates, destinations, and any other relevant information ready.

To cancel a reservation, you'll need to provide your full name, booking reference number, and a valid reason for cancellation. Be sure to review the cancellation policies for your specific booking, as fees may apply depending on the circumstances.

Costco Travel Insurance

Costco Travel offers travel insurance plans to protect your vacation investment. If you have questions about Costco Travel's insurance options or need assistance with a claim, you can contact the travel insurance department for assistance.

Travel Insurance Phone Number: 1-855-216-4304

When calling this number, you'll be connected to a customer service representative who can help you with your travel insurance needs. You can also find detailed information about Costco Travel's insurance plans, including coverage options and pricing, on the Costco Travel website.

In addition to the phone number, you can also submit a claim or request assistance through the Costco Travel website's online portal. This convenient option allows you to manage your travel insurance needs from the comfort of your own home.

Costco Careers and Job Inquiries

If you're interested in pursuing a career with Costco or have questions about job opportunities, you can contact the human resources department for assistance.

Careers Phone Number: 1-800-774-2678

When calling this number, select the appropriate option for careers from the automated menu. You can also find detailed information about Costco's career opportunities, including job descriptions, benefits, and the application process, on the company's careers website.

To apply for a position with Costco, you can submit your resume and application through the careers website. Be sure to review the available positions and requirements before submitting your application to ensure you're a good fit for the role.

Costco Internship Program

Costco offers an internship program for college students and recent graduates interested in gaining experience in the retail industry. If you have questions about the internship program or need assistance with the application process, you can contact the human resources department for assistance.

To learn more about Costco's internship program, including available positions, eligibility requirements, and the application process, you can visit the company's careers website. Be sure to review the program details and submit your application well in advance of the deadline to ensure your consideration.

Costco Employee Benefits

Costco offers a comprehensive benefits package for full-time and part-time employees, including health insurance, retirement plans, and employee discounts. If you have questions about employee benefits or need assistance with the enrollment process, you can contact the human resources department for assistance.

To learn more about Costco's employee benefits, including plan options, coverage details, and enrollment information, you can visit the company's careers website or speak to a human resources representative. Be sure to review the benefits package carefully to ensure you understand the available options and make the best choices for your needs.

In conclusion, having the right contact information is essential for getting the assistance you need when shopping at Costco. Whether you're a current member looking for customer service or a potential employee interested in career opportunities, this comprehensive guide has provided you with the necessary phone numbers, email addresses, and resources to help you navigate Costco's various services. By taking the time to familiarize yourself with these contact options, you'll be well-equipped to handle any inquiries or issues that may arise during your shopping experience. Happy shopping!