Lambert has led the list with each of her seven titles.
Miranda Lambert's Wildcard, released on Nov. 1, enters Billboard's Top Country Albums chart (dated Nov. 16) at No. 1, becoming her seventh total and consecutive leader on the list, encompassing her entire chart output.
In its first week, ending Nov. 7, the set earned 53,000 equivalent album units, with 44,000 in album sales, according to Nielsen Music.
As Lambert lands her seventh No. 1 on Top Country Albums, all of which have arrived in the penthouse, she matches Carrie Underwood as the only artists in the list's 55-year-history to reign in seven career-opening appearances. Underwood added her seventh out-of-the-gate No. 1 when Cry Pretty opened atop the tally dated Sept. 29, 2018.
Wildcard is Lambert's first studio set since The Weight of These Wings, which bowed at the apex with 122,000 units in December 2016. Her run began with 2005's Kerosene and followed with Crazy Ex-Girlfriend (2007), Revolution (2009), Four the Record (2011) and Platinum (2014; the set brought her biggest sales week to date, opening with 180,000 copies, and became her lone No. 1 on the all-genre Billboard 200 thus far).
Lambert additionally ties Underwood and Dolly Parton for the third-most Top Country Albums No. 1s among women. Reba McEntire leads with 13, followed by Loretta Lynn (10). George Strait paces all acts with 27 No. 1s.
Wildcard, produced by Jay Joyce, includes 14 tracks, all of which Lambert co-wrote. On the Billboard 200, the set bows at No. 4, marking Lambert's sixth top 10.
The new LP's lead single, "It All Comes Out in the Wash," lifts 16-15 on Country Airplay, increasing by 5% to 15.6 million in radio reach in the tracking week. On the Hot Country Songs, which blends airplay, streaming and sales dates, it leaps 24-12, also drawing 4.6 million U.S. streams (up 18%).
GO, FISH:Hootie & the Blowfish's first country LP, Imperfect Circle, marks the Darius Rucker-fronted act's first appearance on Top Country Albums, arriving at No. 3 (17,000 units; 15,000 in album sales).
On the Billboard 200, the set starts at No. 26, banking the band its highest rank since October 1998, earned with its third entry, Musical Chairs (No. 4). Before that, the group led with Cracked Rear View (1995) and Fairweather Johnson (1996).
"Hold On," the new album's launch single, lifts 43-42 on Country Airplay (2.7 million, up 2%) and enters Hot Country Songs at No. 43.