Sussex 2 (1987–1993) The original Sussex 2 was a tier 9 league with promotion up to
Sussex 1 and relegation down to
Sussex 3 until that division was abolished at the end of the 1991–92 season.
Sussex 2 (1993–1996) The creation of
National 5 South meant that Sussex 2 dropped from a tier 9 league to a tier 10 league for the years that National 5 South was active. Promotion was to
Sussex 1, and relegation was to
Sussex 3, which was reinstated for the 1994–95 season after a two-year absence.
Sussex 2 (1996–2000) The cancellation of
National 5 South at the end of the 1995–96 season meant that Sussex 2 reverted to being a tier 9 league. Promotion and relegation continued to
Sussex 1 and
Sussex 3 respectively.
Sussex 2: East / West (2000–2002) Restructuring of the London & South East leagues ahead of the 2000–01 saw the cancellation of
Sussex 3 for the second time, and Sussex 2 divided into two regional divisions - Sussex 2 East and Sussex 2 West. Additionally, both regional divisions dropped to tier 10 leagues due to the introduction of
London 4 South East. Promotion continued to
Sussex 1 and there was no longer relegation.
Sussex 2 (2002–2004) Sussex 2 was re-merged back into a single division ahead of the 2002–03 season, remaining at tier 10 of the league system. Promotion was to
Sussex 1 and relegation to
Sussex 3, which returned after an absence of two seasons. Sussex 2 was abolished at the end of the 2003–04 season.
Sussex Canterbury Jack Intermediate (2010–2015) Sussex 2 was reintroduced for the 2010–11 season as Sussex Canterbury Jack Intermediate. It was a tier 10 league with promotion up to
Sussex 1 and relegation to either
Sussex Asahi 2 East or
Sussex Oranjeboom 2 West.
Sussex 2 (2015–present) Sussex Canterbury Jack Intermediate was renamed to Sussex 2 for the 2015–16 season. It remained a tier 10 league with promotion to
Sussex 1, while relegation was now to
Sussex Oranjeboom 3. ==Number of league titles==