The singer's "Back to Black" album has sold 37,000 copies since she died on Saturday.
That's more copies than the album has sold in the last three years, and puts Winehouse at No. 9 on the Billboard list of top selling albums.
Most of the sales were digital downloads. The most downloaded Winehouse song? Her most famous one, "Rehab."
The 27-year-old Winehouse died of unknown causes at her London home last weekend. She had struggled with drug and alcohol addiction for years.
The Associated Press contributed to this report.