As of May 2025, Costco operates approximately 905 warehouse stores worldwide. The majority of these stores, about 86%, are located in North America, including the United States, Canada, and Mexico

. The breakdown of warehouses by country includes:

• United States: 623 stores (including Puerto Rico)
• Canada: 109 stores
• Mexico: 41 stores
• Japan: 36 stores
• United Kingdom: 29 stores
• South Korea: 19 stores
• Australia: 15 stores
• Taiwan: 14 stores
• China: 7 stores
• Spain: 5 stores
• France: 2 stores
• Iceland, New Zealand, Sweden: 1 store each

Costco has steadily expanded its global presence, growing from 592 warehouses in 2011 to 890 by the end of 2024, and continuing to add new locations into 2025