Straight Outta Cashville received minimal promotion after November 2004 as result of the VIBE award incident, in which Buck was arrested for an assault. Though the case was eventually dropped, four months had passed by since Buck himself had been able to promote the album.
Straight Outta Cashville received generally positive reviews from music critics. Rafael Martinez of Prefix called the record "the best G-Unit release to date", giving praise to the production, featured guests and Buck delivering above-average lyricism from the hip-hop blueprint, concluding that "Cynics will criticize Straight Outta Cashville as another typical G-Unit album, only this time south of the Mason-Dixon Line. But Buck is more than just a 50 flunky and can hold down an album on his own. You can’t argue with success: G-Unit is running this."Kelefa Sanneh from The New York Times said, "This album isn't revelatory, but it is convincing, and although Young Buck's subject matter never surprises, the tracks sometimes do."Jon Caramanica, writing for Rolling Stone, praised Buck for lyrically holding his own opposite the featured artists on a solid debut effort, saying that "Straight Outta Cashville is crime rap par excellence – unrepentantly grimy lyrics backed by soulful production."Robert Christgau graded the album as a "dud", indicating "a bad record whose details rarely merit further thought."