Until 2013 the league consisted of a Division One of ten clubs and a Division Two (East) and a Division Two (West), each of ten clubs, with promotion between Divisions and to and from the feeder leagues. With the withdrawal of the Hertfordshire clubs,[3] the structure was simplified and there is now just Division One and Division Two.
There are two feeder leagues, covering narrower areas within the region:
Cherwell Cricket League - Primarily Oxfordshire, but also with clubs from Bedfordshire, Buckinghamshire, Hertfordshire, and Northamptonshire. In the past there have also been clubs from Gloucestershire and Wiltshire.[4]
Thames Valley Cricket League - A wide area to the west of London. Most clubs have traditionally been from Berkshire and Buckinghamshire, but there are also clubs from Hampshire, Hertfordshire, Middlesex, Oxfordshire, and Surrey.[5]
With the exception of Tring Park who have remained in the Home Counties Premier Cricket League, the Hertfordshire clubs now take part in the Hertfordshire Cricket League.[6]
^ abcdHarpenden, North Mymms, Potters Bar, and Welwyn Garden City left Division 1 after the 2013 season. They and all the clubs in Division 2 East joined the Hertfordshire Cricket League.
^ abcOxford and Horspath split into two clubs after the 2003 season; Oxford took the place in Division One while Horspath have since also reached Division One.