List of counties of England by area in 1831
This is a list of historic counties of England by area as at the 1831 census. Note that Monmouthshire was considered to be part of England at the time.
| Rank | County | Area |
| 1 | Yorkshire | |
| 2 | Lincolnshire | |
| 3 | Devon | |
| 4 | Norfolk | |
| 5 | Northumberland | |
| 6 | Somerset | |
| 7 | Hampshire | |
| 8 | Essex | |
| 9 | Lancashire | |
| 10 | Kent | |
| 11 | Cumberland | |
| 12 | Suffolk | |
| 13 | Sussex | |
| 14 | Wiltshire | |
| 15 | Shropshire | |
| 16 | Cornwall | |
| 17 | Gloucestershire | |
| 18 | Staffordshire | |
| 19 | County Durham | |
| 20 | Derbyshire | |
| 21 | Cheshire | |
| 22 | Northamptonshire | |
| 23 | Dorset | |
| 24 | Warwickshire | |
| 25 | Herefordshire | |
| 26 | Cambridgeshire | |
| 27 | Nottinghamshire | |
| 28 | Leicestershire | |
| 29 | Westmorland | |
| 30 | Surrey | |
| 31 | Berkshire | |
| 32 | Oxfordshire | |
| 33 | Buckinghamshire | |
| 34 | Worcestershire | |
| 35 | Hertfordshire | |
| 36 | Monmouthshire | |
| 37 | Bedfordshire | |
| 38 | Huntingdonshire | |
| 39 | Middlesex | |
| 40 | Rutland | |
