ISSAQUAH, Washington (

TheStreet

) -- Warehouse retailer

Costco

(COST) - Get Costco Wholesale Corporation Report

said third-quarter earnings rose 6% as net sales jumped 16% to $20.19 billion.

Costco said net income was $324 million, or 73 cents a share, up from year-earlier earnings of $306 million, or 68 cents a share.

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The latest quarter included a pretax LIFO charge of $49 million, or 7 cents a share.

Costco said comparable-store sales in the quarter rose 12%. U.S. same-store sales jumped 10%, while international sales increased 18%. Excluding inflation in gasoline prices and stronger foreign currencies comparable-store sales in the quarter rose 7%.

-- Written by Joseph Woelfel

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