Southern Counties (1987–1993) Originally
Southern Counties North and Southern Counties South were combined in a single division called Southern Counties. It was a tier 7 league with promotion to
South West 2 and relegation to either
Berks/Dorset/Wilts 1 or
Bucks/Oxon 1.
Southern Counties (1993–1996) At the end of the 1992–93 season the top six teams from
London Division 1 and the top six from
South West Division 1 were combined to create
National 5 South. This meant that Southern Counties dropped from a tier 7 league to a tier 8 league for the years that National 5 South was active. Promotion continued to
South West 2 and relegation to either
Berks/Dorset/Wilts 1 or
Bucks/Oxon 1.
Southern Counties South (1996–2000) Restructuring by the
RFU at the end of the 1995–96 season saw Southern Counties split into two separate leagues,
Southern Counties North and Southern Counties South, which reverted to tier 7 leagues due to the cancellation of
National 5 South. Promotion from Southern Counties South was now to the new
South West 2 East while relegation was now only to Berks/Dorset/Wilts 1 (currently split into
Dorset & Wilts 1 North and
Dorset & Wilts 2 South).
Southern Counties South (2000–2004) Southern Counties South remained a tier 7 league, with promotion continuing to
South West 2 East. However, the transfer of Berkshire clubs from the Dorset/Wilts leagues to the Bucks/Oxon leagues, meant that relegation was now to Dorset & Wilts 1 (formerly Berks/Dorset/Wilts 1).
Southern Counties South (2005–2009) Southern Counties South remained a tier 7 league, with promotion continuing to
South West 2 East, while a further restructuring of the Dorset/Wilts leagues meant that relegation was now to either
Dorset & Wilts 1 North or
Dorset & Wilts 1 South.
Southern Counties North (2009–present) Despite widespread league restructuring by the
RFU, Southern Counties South continued as a tier 7 league, with promotion to
South West 1 East (formerly South West 2 East) and relegation to either
Dorset & Wilts 1 North or
Dorset & Wilts 1 South.
Counties 1 Southern South (2022– ) Following the reorganisation of the leagues, Southern Counties South was renamed Counties 1 Southern South and remained a level seven league. The champions are promoted to
Regional 2 Severn or
Regional 2 South Central and two or three teams are relegated, depending on location, to
Counties 2 Dorset & Wilts Central,
Counties 2 Dorset & Wilts North or
Counties 2 Dorset & Wilts South. ==Promotion play-offs==