Where is Costco headquartered?
The Costco head office is at 999 Lake Drive, Issaquah, Washington 98027, United States. Washington accounts for 7,000 of the 89,684 tracked employee profiles, ahead of California and Texas. The company has been trading since 1983. The company keeps 2 tracked offices, all inside the United States, including Issaquah and Seattle. The company itself reports a presence in 14 countries. It is the reporting seat for $303.2B of revenue.
Costco headquarters address
Street999 Lake Drive
CityIssaquah
State / RegionWashington
Postal code98027
CountryUnited States
Phone+1 425-313-8100
Countries (reported)14
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Costco offices & locations
| Type | City | Country |
|---|---|---|
| Corporate headquarters at 999 Lake Drive, filed with the SEC as the business and mailing address of Costco Wholesale Corporation | Issaquah, Washington | United States |
| City where Costco began operations in 1983, and the warehouse address shown on its LinkedIn company page | Seattle, Washington | United States |
Where Costco's people are
- Other U.S. states and Puerto Rico29,61033%
- Other international markets16,42418%
- California15,50017%
- Canada14,65016%
- Washington7,0007.8%
- Texas6,5007.2%
| Name | Profiles | Share |
|---|---|---|
| Other U.S. states and Puerto Rico | 29,610 | 33% |
| Other international markets | 16,424 | 18% |
| California | 15,500 | 17% |
| Canada | 14,650 | 16% |
| Washington | 7,000 | 7.8% |
| Texas | 6,500 | 7.2% |
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More about Costco
FAQ
Frequently asked questions
Where is Costco headquartered?
Costco's headquarters is located at 999 Lake Drive, Issaquah, Washington 98027, United States, as of 2026-10-13. This is the registered head office where the company is primarily based.
In which city is Costco's headquarters?
Costco's headquarters is in Issaquah, Washington, United States. You can see the exact address and a map above.
How many offices does Costco have?
Beyond its Issaquah headquarters, Costco has tracked offices in Issaquah, Seattle (as of 2026-10-13).
What is Costco's headquarters phone number?
The published switchboard for Costco's Issaquah head office is +1 425-313-8100 (as of 2026-10-13). It is a company line, not a direct line to any individual.
How many countries does Costco operate in?
Costco reports a presence in 14 countries. Beyond the head office, 2 of its locations are tracked here (as of 2026-10-13).