Find my Costco 401(k) plan

Costco offers COSTCO 401K RETIREMENT PLAN through T Rowe Price. Their plan covers 184,379 employees.

Updated on Nov 29, 2023

Costco 401(k) plan information

Costco’s 401(k) provider
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Hours of operation
Monday - Friday: 7am - 10pm EST, Automated voice response system available 24/7
P.O. Box 17215, Baltimore, MD, 21297
To access your Costco 401(k) plan online, visit the T Rowe Price website and enter your username and password, or use the forgot login feature to reset your credentials. If you don’t have login credentials, try registering as a new user.
If you have a 401(k) plan through Costco at T Rowe Price and no longer work there, you have a few options. You can leave it with T Rowe Price, roll it over into an individual retirement account (IRA), roll it over into a new 401(k), or withdraw the funds (may incur tax penalties).

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Costco 401(k) plan details

Costco offers COSTCO 401K RETIREMENT PLAN through T Rowe Price. Their plan covers 184,379 employees.

The leading warehouse club, Costco has 838 stores worldwide (at the end of fiscal 2022), with most sales derived in the United States (73%) and Canada (14%). It sells memberships that allow customers to shop in its warehouses, which feature low prices on a limited product assortment. Costco mainly caters to individual shoppers, but nearly 20% of paid members carry business memberships. Food and sundries accounted for nearly 39% of fiscal 2022 sales, with non-food merchandise 27%, warehouse ancillary and other businesses (such as fuel and pharmacy) 21%, and fresh food 13%. Costco’s warehouses average around 146,000 square feet; over 75% of its locations offer fuel. About 7% of Costco’s global sales come from e-commerce (excluding same-day grocery and various other services).
Discount Stores
999 LAKE DR, ISSAQUAH, WA, 98027-8990
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