| The list given below is the Chapman County Code system as used in Census lists to denote the various counties and registration authorities in the United Kingdom |
| BDF |
Bedfordshire |
HRT |
Hertfordshire |
OXF |
Oxfordshire |
| BRK |
Berkshire |
HUN |
Huntingdonshire |
RUT |
Rutland |
| BKM |
Buckinghamshire |
IRL |
Ireland |
SAL |
Shropshire (Salop) |
| CAM |
Cambridgeshire |
IOM |
Isle of Man |
SCT |
Scotland |
| CHS |
Cheshire |
IOW |
Isle of Wight |
SOM |
Somerset |
| CON |
Cornwall |
JSY |
Jersey |
STS |
Staffordshire |
| CUL |
Cumberland |
KEN |
Kent |
SFK |
Suffolk |
| DBY |
Derbyshire |
LAN |
Lancashire |
SRY |
Surrey |
| DEV |
Devon |
LEI |
Leicestershire |
SSX |
Sussex |
| DOR |
Dorset |
LIN |
Lincolnshire |
WAL |
Wales |
| DUR |
Durham |
LND |
London |
WAR |
Warwickshire |
| ERY |
Yorkshire - East Riding |
MDX |
Middlesex |
WES |
Westmorland |
| ESS |
Essex |
NRY |
Yorkshire - North Riding |
WIL |
Wiltshire |
| GLS |
Gloucestershire |
NFK |
Norfolk |
WOR |
Worcestershire |
| GSY |
Guernsey |
NTH |
Northamptonshire |
WRY |
Yorkshire - West Riding |
| HAM |
Hampshire |
NBL |
Northumberland |
YKS |
Yorkshire |
|
