Despite limited initial promotion by the record label, At Folsom Prison climbed to the top of the country music charts and ranked among the top 15 best-selling albums nationwide. The lead single, a rendition of Folsom Prison Blues, became his first Top 40 hit since 1964. The album received favorable reviews and was a catalyst for Cash's career. In 1969, he was honored at the Annual Grammy Awards with the award for Best Album Notes, while Folsom Prison Blues received recognition for Best Country Vocal Performance, Male. The album included tracks like Dark as Dungeon and Cocaine Blues, as well as the notable inclusion of Greystone Chapel, a song written by an inmate, Glen Sherley, underscoring Cash's commitment to giving a voice to those deprived of their freedom.
The recording was done with mobile equipment from Columbia Records, and the raw energy of the performances was captured in every track. The sound mix, supervised by Bob Johnston, aimed to enhance the reactions of the prison audience, creating an immersive experience that connected with the humanity of those present. This album set a precedent, leading Cash to record other works in prisons such as At San Quentin in 1969. At Folsom Prison has been recognized by numerous critics as one of the most important albums and was included in Rolling Stone's list of the 500 Greatest Albums of All Time. In 2003, it was certified triple platinum for sales in the United States. The album was reissued with bonus material in 1999 and again in 2018.
