After nine weeks on release, The Weeknd's "Starboy" added another 56,000 units sold for the week, while Mayer's new four-song EP, "The Search for Everything: Wave One," sold 49,000.
Mayer on Monday announced a North American and European tour to promote the album that will kick off on March 31 in Albany, New York and end in May in London.
In a week of few new album releases, the soundtrack to Oscar-nominated movie "La La Land" took the No.3 spot.
The Billboard 200 album chart tallies units from album sales, song sales (10 songs equal one album) and streaming activity (1,500 streams equal one album).
British singer-songwriter Ed Sheeran again dominated the digital songs chart, which measures online song sales. His single "Shape of You," released three weeks ago, sold 103,000 units for the week.