Costco Wholesale Corporation reported net sales of $5.77 billion for the five weeks ended January 2, 2005, an increase of 11% from $5.20 billion in the same five-week period of the prior fiscal year.

For the first 18 weeks of its 2005 fiscal year ended January 2, 2005, the Company reported net sales of $18.17 billion, an increase of 10 percent from $16.49 billion during the similar 18-week period of the prior fiscal year.

Comparable sales for the 5-week and 18-week periods ended January 2, 2005, were as follows: 

                                          5 Weeks         18 Weeks
                                      --------------- ----------------
US                                          8%               7%
International                               12%              9%

Total Company                               9%               7%
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