True Believers has received positive reception from the music critics. Fred Thomas of Allmusic told that "the thing is, with a few songs you have to be listening pretty closely to differentiate the country affectations from the pop songwriting Rucker's been doing all along."Music Is My Oxygen's Rob Burkhardt called the work "a set of highly sing-able, highly memorable tunes, loaded with ear-worm hooks and virtually no mis-steps." At The Oakland Press, Gary Graff found that on this release that Rucker has made "something deeper than the annual ledger-satisfying exercises at which most country acts excel", which he "gets into some genuinely deep subject matter here". Roughstock's Matt Bjorke affirmed that the album "feels solid and ready for the spotlight or setlist." At USA Today, Brian Mansfield wrote that "Rucker sings plenty about driving, spring break and the radio". Billy Dukes of Taste of Country wrote that the release "suffers from a sonic sameness that stays within Rucker’s comfort zone", and noted that "there's a whiff of formula [...] something every artist should work to stay ahead of."
True Believers debuted at No. 1 on the Top Country Albums chart and No. 2 on the Billboard 200, with 83,000 sold for the week. The album was certified Gold by the RIAA on February 12, 2014. As of April 2015, the album has sold 575,400 copies in the United States