The Costco Wholesale Corporation phone number is 1-425-313-8100. The Costco Wholesale Corporation address is 999 Lake Drive, Issaquah, WA 98027. Costco also accepts corporate correspondence at P.O. Box 34331, Seattle, WA 98124.
Members and customers should normally contact the appropriate Costco warehouse, Member Services, Costco.com support, Costco Travel, pharmacy, or warranty department before escalating an unresolved issue to the corporate office.
Costco Wholesale Corporation Phone Number and Address
- Company: Costco Wholesale Corporation
- Costco Headquarters Address: 999 Lake Drive, Issaquah, WA 98027
- Costco Corporate Mailing Address: Costco Wholesale, P.O. Box 34331, Seattle, WA 98124
- Costco Corporate Office Phone Number: 1-425-313-8100
- Corporate Office Phone Hours: Monday–Friday, 8 a.m.–5 p.m. PT
- Costco.com Online Orders and Costco Logistics: 1-800-955-2292
- Membership and Warehouse Support: 1-800-774-2678 / 1-800-774-COSTCO
- Costco Business Center Orders: 1-800-788-9968
- Costco Technical and Warranty Services: 1-866-861-0450
- Costco Mail Order Pharmacy: 1-800-607-6861
- Costco Travel: 1-877-849-2730
- Stock Symbol: COST on Nasdaq
- Official Website: Costco.com
- Official Customer Service: Costco Contact Us
- Feedback and Complaints: Provide Feedback to Costco
- Investor Relations: Costco Investor Relations
Important: The Costco corporate office phone number is different from Costco’s principal customer-support numbers. Use the department associated with the membership, warehouse, online order, pharmacy, warranty, delivery, or travel issue before calling the home office.
Costco Headquarters and Main Office
Costco Wholesale Corporation’s headquarters and main administrative office are located at 999 Lake Drive in Issaquah, Washington. This location supports the company’s executive leadership, corporate administration, finance, investor relations, merchandising, legal, real estate, technology, membership operations, and other company-level functions.
Costco also publishes a corporate mailing address:
Costco Wholesale
P.O. Box 34331
Seattle, WA 98124
The Issaquah corporate office should not be confused with an individual Costco warehouse. Customers looking for inventory, warehouse hours, pharmacy, optical, tire center, food court, fuel station, hearing aid, or local management assistance should contact the specific warehouse involved.
Costco Executive Leadership
- President and Chief Executive Officer: Ron M. Vachris
- Executive Vice President and Chief Financial Officer: Gary Millerchip
- Executive Vice President, General Counsel and Corporate Secretary: John Sullivan
- Company Type: Publicly traded corporation
- Stock Exchange: Nasdaq
- Stock Symbol: COST
Leadership and executive titles can change. Investors and business contacts should verify current executive information through Costco Investor Relations.
Choose the Correct Costco Support Number
Costco Membership and Warehouse Support
Call 1-800-774-2678 for membership and warehouse support. This number is generally appropriate for:
- Membership renewals and cancellations
- Executive Membership questions
- Membership account updates
- Digital membership cards
- Membership refunds
- General warehouse-support questions
- Member-service complaints
Costco lists membership and warehouse telephone hours as Monday through Friday from 6 a.m. to 6 p.m. PT and Saturday through Sunday from 8 a.m. to 5 p.m. PT.
Costco.com Online Orders and Costco Logistics
Call 1-800-955-2292 for Costco.com online orders and orders delivered through Costco Logistics. This includes:
- Order status and tracking
- Shipping delays
- Large-item delivery
- Installation concerns
- Damaged or missing merchandise
- Order cancellations
- Returns and replacements
- Costco.com account support
Costco lists online-order telephone hours as Monday through Friday from 5 a.m. to 8 p.m. PT and Saturday through Sunday from 5 a.m. to 7 p.m. PT.
Costco Business Center Orders
Call 1-800-788-9968 for Costco Business Center order questions and business-delivery concerns.
Costco Technical and Warranty Services
Call 1-866-861-0450 for technical and warranty support involving eligible televisions, computers, appliances, electronics, and other covered products.
Costco Mail Order Pharmacy
Call 1-800-607-6861 for Costco Mail Order Pharmacy questions. Contact the pharmacy located inside a specific warehouse directly for local prescription or pharmacy-department concerns.
Costco Travel
Call 1-877-849-2730 for Costco Travel questions involving cruises, hotels, vacation packages, rental cars, reservations, changes, cancellations, and travel refunds.
Local Costco Warehouse Departments
Use Costco’s official warehouse locator to find and call the individual warehouse for:
- Warehouse inventory and product availability
- Store hours
- Pharmacy
- Tire Center
- Optical department
- Hearing Aid Center
- Food court
- Fuel station
- Lost property
- Local management concerns
How to Escalate a Complaint to Costco Corporate
- Start with the department involved: Contact the warehouse, Member Services, Costco.com support, pharmacy, Costco Travel, Business Center, or warranty team connected to the complaint.
- Ask for a manager: For a warehouse issue, request the department manager or warehouse manager.
- Document the complaint: Keep receipts, order numbers, membership information, dates, photographs, tracking information, and prior case numbers.
- Use Costco’s feedback route: Submit feedback through Costco’s official customer-service system and retain confirmation of the submission.
- Call the home office: For an unresolved company-level matter, call 1-425-313-8100 during published corporate-office hours.
- Send written correspondence: Mail a concise complaint to Costco Wholesale, P.O. Box 34331, Seattle, WA 98124.
- Request a clear resolution: State whether you are requesting a refund, replacement, billing correction, manager follow-up, claim review, cancellation, or written explanation.
Include only the information necessary for Costco to investigate the issue. Do not publish a complete membership number, payment-card number, pharmacy information, home address, password, or other sensitive information in a public comment.
What to Have Before Contacting Costco Corporate Office
- Costco membership number
- Warehouse address, city, state, and warehouse number when known
- Date and approximate time of the purchase, visit, delivery, or support call
- Receipt, order number, item number, tracking number, or delivery confirmation
- Product model and serial number when relevant
- Photographs of damage, incorrect merchandise, safety concerns, or delivery conditions
- Names or roles of employees, managers, delivery teams, or support representatives
- Case, claim, return, or warranty numbers
- A concise timeline of previous contacts
- The specific resolution requested
Does Costco Have a Corporate Email for Complaints?
Costco does not currently publish a general customer-facing corporate complaint email on its official customer-service pages. Members should use Costco’s feedback system, telephone support, chat, local warehouse management, or written corporate mailing address.
The email address in******@****co.com is published for investor-relations matters. It is not the appropriate address for routine warehouse, membership, order, delivery, pharmacy, or customer-service complaints.
Be cautious of third-party websites or search results that publish a supposed Costco executive or complaint email without confirmation from Costco.
Costco Membership and Renewal Complaints
For membership billing, automatic renewal, Executive Membership, membership cancellation, account changes, or digital membership-card concerns, call 1-800-774-2678 or visit the membership counter at a Costco warehouse.
Costco states that a Primary Member may cancel a membership by speaking with a team member at a warehouse membership counter or by calling Member Services. Keep confirmation of any cancellation, refund, account change, or renewal adjustment.
Costco.com Order and Delivery Complaints
For a missing order, damaged delivery, incorrect item, delayed shipment, delivery-team complaint, return, replacement, or cancellation, call 1-800-955-2292.
Keep the order number, tracking information, delivery date, product photographs, serial number, return authorization, and communications with Costco or the delivery company.
Warehouse and Store-Level Complaints
Contact the specific warehouse for concerns involving:
- Employees or customer service
- Checkout or returns
- Product availability
- Parking lot safety or property damage
- Shopping carts
- Food court service
- Tire Center service
- Pharmacy, optical, or hearing aid service
- Fuel-station concerns
- Accessibility
- Local warehouse policies
Ask for the appropriate department manager and then the warehouse manager if the first contact does not resolve the matter.
Property Damage and Incident Claims
For a parking lot accident, property damage, injury allegation, delivery damage, or another incident, report the matter promptly to the warehouse or Costco department involved.
Request an incident or claim number and retain photographs, receipts, repair estimates, witness information, security-camera details, and communications with Costco or any third-party claim administrator. Do not assume that submitting an incident report guarantees payment or acceptance of liability.
Technical, Warranty, Appliance, and Electronics Complaints
Call Costco Technical and Warranty Services at 1-866-861-0450 for eligible electronics, appliance, computer, television, and warranty questions.
Have the Costco receipt, item number, manufacturer, model number, serial number, purchase date, warranty documentation, troubleshooting history, delivery information, and any manufacturer case number ready.
Costco Travel Complaints
For a Costco Travel issue, call 1-877-849-2730. Keep the reservation number, travel dates, traveler names, itinerary, supplier information, cancellation terms, payment records, and previous communications.
Costco Pharmacy and Health-Related Concerns
Contact the pharmacy at the warehouse involved for local prescription questions. Call 1-800-607-6861 for Costco Mail Order Pharmacy support.
Do not post prescription information, medical conditions, medication details, dates of birth, or health-insurance information in a public review. For urgent medical concerns, contact a healthcare professional or emergency service rather than waiting for a corporate response.
Costco Scam and Fake Support Number Warning
Costco has warned customers about scam calls that spoof its home-office, Ecommerce, and membership phone numbers. A caller ID displaying a genuine Costco number does not prove that the caller is actually from Costco.
- Verify the call by contacting Costco through Costco.com or an official document.
- Do not provide passwords or one-time verification codes to unsolicited callers.
- Do not allow remote access to a computer or mobile device.
- Do not pay through gift cards, cryptocurrency, wire transfers, or unfamiliar payment applications.
- Do not disclose complete payment-card or bank-account numbers in response to an unexpected message.
- Verify unexpected membership, refund, delivery, fraud, or account warnings through an official Costco contact route.
Common Reasons Customers Contact Costco Headquarters
- Unresolved membership complaints
- Warehouse-manager escalation issues
- Costco.com order and delivery problems
- Return, refund, replacement, or price-adjustment concerns
- Product quality or availability complaints
- Parking lot, property damage, or safety incidents
- Costco Travel reservations or refunds
- Technical support and warranty claims
- Pharmacy, optical, hearing aid, tire, or fuel-station concerns
- Supplier and vendor inquiries
- Investor relations
- Real estate and administrative matters
Costco Corporate Office Reviews and Complaints
Reader comments on CorporateOfficeHeadquarters.com include individual experiences involving parking lot damage, store-level follow-up, third-party claim handling, product availability, food-court and take-and-bake item requests, customer service, and Costco company policies.
Some readers also share positive feedback about Costco’s service, value, employees, products, or company decisions. These comments represent individual experiences and should not be treated as universal facts about every Costco warehouse, employee, department, policy, or corporate response.
No reliable aggregate star rating is currently displayed on this page. A helpful review should identify the warehouse or department, approximate date, issue, support route used, and whether Costco provided a case number or resolution.
About Costco Wholesale Corporation
Costco Wholesale Corporation operates membership warehouse clubs and related retail and service businesses. Its operations include Costco warehouses, Costco.com, Costco Business Centers, Costco Logistics, Costco Travel, pharmacy services, optical departments, hearing aid centers, Tire Centers, fuel stations, food courts, and the Kirkland Signature private label.
Costco was founded in 1983 and is headquartered in Issaquah, Washington. The company is publicly traded on Nasdaq under the symbol COST.
Costco Competitors and Related Corporate Office Pages
- Sam’s Club Corporate Office
- BJ’s Wholesale Club Corporate Office
- Walmart Corporate Office
- Target Corporate Office
- Kroger Corporate Office
- Amazon Corporate Office
Official and Related Costco Resources
- Official Costco Corporate Office Information
- Costco Customer Service Contacts
- Provide Feedback to Costco
- Costco Warehouse Locator
- Costco Customer Service Center
- Costco Technical and Warranty Support
- Costco Travel
- Costco Investor Relations
- Costco Customer Service Numbers, Reviews, and Complaints
Frequently Asked Questions About Costco Corporate Office
What is the Costco Wholesale Corporation phone number?
The Costco Wholesale Corporation phone number for the corporate office is 1-425-313-8100. Costco lists home-office telephone availability Monday through Friday from 8 a.m. to 5 p.m. Pacific Time.
What is the Costco Wholesale Corporation address?
The Costco Wholesale Corporation address is 999 Lake Drive, Issaquah, WA 98027.
What is Costco’s corporate mailing address?
Costco’s corporate mailing address is Costco Wholesale, P.O. Box 34331, Seattle, WA 98124.
Where is Costco headquarters located?
Costco headquarters and main administrative office are located in Issaquah, Washington, at 999 Lake Drive.
What is the Costco customer service phone number?
Call 1-800-774-2678 for membership and warehouse support. Call 1-800-955-2292 for Costco.com online orders and Costco Logistics deliveries.
How do I complain to Costco corporate?
Begin with the warehouse, department, or customer-support team involved. If the issue remains unresolved, submit feedback through Costco’s official customer-service system, call the corporate office at 1-425-313-8100, or write to Costco Wholesale, P.O. Box 34331, Seattle, WA 98124.
Does Costco have a corporate email for complaints?
Costco does not currently publish a general customer-complaint email on its official customer-service pages. Use Costco’s feedback system, chat, telephone support, local warehouse management, or corporate mailing address.
What is Costco’s corporate website?
Costco’s official retail website is Costco.com. Corporate financial and governance information is available through Costco Investor Relations.
Who is the CEO of Costco?
Ron M. Vachris is the president and chief executive officer of Costco Wholesale Corporation.
How do I contact a specific Costco warehouse?
Use Costco’s official warehouse locator to find the telephone number and department details for the warehouse involved.
Is CorporateOfficeHeadquarters.com affiliated with Costco?
No. CorporateOfficeHeadquarters.com is an independent corporate-contact and consumer-review website and is not affiliated with Costco Wholesale Corporation.
Why Trust CorporateOfficeHeadquarters.com?
CorporateOfficeHeadquarters.com has provided corporate headquarters addresses, office phone numbers, company contact information, complaint guidance, and public review pages since 2010.
Information is reviewed using official corporate-office pages, company customer-service resources, investor-relations materials, executive-management pages, public filings, and visible reader submissions when available.
Corporate contact information, executive leadership, support numbers, mailing addresses, operating hours, and complaint routes can change. Verify important information directly with Costco before sending money, legal correspondence, confidential records, or sensitive account information.
Page Update Note
This Costco corporate office page was updated on July 29, 2026, using page-specific Search Console and QueryHunter data.
The update added the exact high-impression phrases “Costco Wholesale Corporation phone number” and “Costco Wholesale Corporation address” to prominent, relevant locations; improved the title and opening answer; added current executive leadership; clarified that Costco does not publish a general customer-complaint email; expanded the complaint FAQ; shortened the image caption; improved image SEO; and preserved the existing URL and WordPress image attachment.
Disclaimer
CorporateOfficeHeadquarters.com is an independent consumer information website and is not affiliated with, endorsed by, or sponsored by Costco Wholesale Corporation, Costco.com, any Costco warehouse, Costco Travel, Costco Logistics, Costco Pharmacy, Costco Technical and Warranty Services, Citi, any product manufacturer, or any government agency.
Costco, Costco Wholesale, Kirkland Signature, and related names, logos, trademarks, and service marks belong to their respective owners. Corporate addresses, telephone numbers, leadership, warehouse policies, membership terms, support hours, return procedures, and complaint routes may change without notice.
Verify important information directly with Costco before sending private information, legal correspondence, payments, pharmacy records, products, or other sensitive materials.
Share Your Experience
Have you contacted the Costco corporate office, Costco headquarters, a warehouse manager, Member Services, Costco.com support, Costco Travel, Technical and Warranty Services, Costco Pharmacy, or another Costco complaint route? Share your experience below and explain the warehouse or department involved, approximate date, support route used, and whether Costco provided a case number or resolution.
Privacy warning: Do not post complete membership numbers, payment-card numbers, bank information, home addresses, phone numbers, email addresses, passwords, verification codes, prescription information, medical records, legal documents, or employee personal information in a public review.