Data released on Tuesday by Nielsen SoundScan showed that Houston's album sales for the week ending Sunday, the day after her death, were at 101,000. The week earlier, she had sold just 1,700 copies of her albums.
The pop icon's "Greatest Hits" album shot up to the No. 6 spot on Billboard's Top 200 albums chart, with about 64,000 copies sold. In the past week, it had sold only 607 copies.
Her signature song, "I Will Always Love You" sold 195,000 digital tracks. In the past week, it had sold 3,000, marking an increase of 6,877 percent.
The 48-year-old Houston was one of music's top-selling artists of all time. She died in a bathtub in her room at the Beverly Hilton on Saturday. The cause of death has not yet been determined.
The Associated Press contributed to this story.