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Costco

Where is Costco headquartered?

Costco is headquartered in Issaquah, Washington. Costco customer service lists the corporate office at 999 Lake Drive, Issaquah, WA 98027, with a Seattle mailing address.

HQ
Issaquah, WA
HQ address
999 Lake Drive
Offices
Issaquah HQ; global warehouses
Founded
1983
Employees
333,000
Largest hub
Warehouse operations

Costco office locations

Costco's headquarters is in Issaquah, while its operating footprint is a global network of warehouses, depots, e-commerce, and service locations.

  • Issaquah, WA - 999 Lake Drive· Headquarters
  • Seattle, WA - P.O. Box 34331· Mailing address
  • U.S. and Canada warehouses· Operations
  • International warehouses· Operations
  • Depot and logistics network· Supply chain

Sources:Costco corporate officesCostco FY 2025 annual report

Where is Costco's headquarters?

Costco's corporate office is at 999 Lake Drive in Issaquah, Washington 98027. The company is closely tied to the Seattle area, where its predecessor and early warehouse operations scaled.

What other offices does Costco have?

Costco does not market itself around a large corporate office directory. Its real operating footprint is warehouses, depots, business centers, e-commerce operations, and international country organizations.

What Costco's office footprint means for territory planning

Corporate and strategic selling should start in the Seattle/Issaquah area. Product vendors also need to understand regional buying, depot logistics, warehouse execution, and country-level requirements if the opportunity extends beyond the United States.

As of June 2026.Sources:Costco corporate officesCostco headquarters campus

Costco — frequently asked questions

Read the full Costco profile
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Where is Costco headquartered — other companies
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