For ease and to avoid confusion, the Society uses the UK’s standard Local Government adminstrative regions. These are defined below.
| Region | Including Counties |
| East Anglia | Essex, Herts, Beds, Cambs, Norfolk & Suffolk |
| East Midlands | Derbys, Notts, Lincs, Leics & Northants |
| International | Rest of the World |
| London | London |
| North East | Northumbria, Tyne & Wear, Co. Durham & North Yorks |
| North West | Cheshire, Cumbria, Gtr Manchester, Lancs & Merseyside |
| Scotland | Scotland |
| South East | Berks, Bucks, Hants, IoW, Sussex, Kent, Oxon & Surrey |
| South West | Somerset, Gloucs, Wilts, Dorset, Devon & Cornwall |
| Ulster | Northern Ireland |
| West Midlands | Hereford, Salop, Staffs, Warks, Worcs & West Midland |
| Wales | Wales including Isle of Anglesey |
| Yorkshire | South & West Yorkshire & East Riding |
