Cornwall League 2 (1987–1993) The original Cornwall 2 (sponsored by
Courage) was a tier 10 league with promotion to
Cornwall 1; there was no relegation.
Cornwall League 2 (1993–1996) The creation of
National 5 South for the 1993–94 season meant that the Cornwall League 2 dropped one tier to tier 11. Promotion was to
Cornwall 1 and there was no relegation.
Cornwall League 2 (1996–2009) The cancellation of
National 5 South at the end of the 1995–96 season saw Cornwall League 2 return to being a tier 10 division. Promotion continued to
Cornwall 1 and there was no relegation. From the 2008–09 season onwards the league sponsor is
Tribute. Restructuring at the end of the 2008–09 season saw Cornwall 1 and Cornwall 2 clubs merged into a single Cornwall League.
Cornwall League 2 (2011–2016) After an absence of several seasons, Cornwall 2 returned due to the splitting of the Cornwall League back into two separate divisions. Remaining at tier 10 of the league system, promotion was once again to
Cornwall 1 and there was no relegation
Cornwall League 2 (2016–2017) The 2016–17 season saw a restructuring of the Cornwall leagues. For the first half of the season, all clubs from
Cornwall 1 and Cornwall 2 played in a single tier 9 division. In the second half of the season the league divided into Cornwall 1 and Cornwall 2 leagues based on the league position of the clubs. During this season there was no promotion or relegation to or from Cornwall 2.
Cornwall League 2 (2017–2022) The 2017–18 season saw Cornwall 2 revert to being a tier 10 league. Promotion was to
Cornwall 1 and there was no relegation.
Counties 3 Cornwall (2022– ) Following reorganisation of the league structure, Cornwall 2 became a tier nine league and renamed Counties 3 Cornwall. Promotion is to
Counties 2 Cornwall and there is no relegation. ==Number of league titles==