List of counties of England by area in 1831
# 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 | 3,669,510 acres (14,850.0 $km^2)$ |
| 2 | Lincolnshire | 1,663,850 acres (6,733.4 $km^2)$ |
| 3 | Devon | 1,636,450 acres (6,622.5 $km^2)$ |
| 4 | Norfolk | 1,292,300 acres (5,230 $km^2)$ |
| 5 | Northumberland | 1,165,430 acres (4,716.3 $km^2)$ |
| 6 | Somerset | 1,028,090 acres (4,160.5 $km^2)$ |
| 7 | Hampshire | 1,018,550 acres (4,121.9 $km^2)$ |
| 8 | Essex | 979,000 acres (3,960 $km^2)$ |
| 9 | Lancashire | 977,260 acres (3,954.8 $km^2)$ |
| 10 | Kent | 972,240 acres (3,934.5 $km^2)$ |
| 11 | Cumberland | 969,490 acres (3,923.4 $km^2)$ |
| 12 | Suffolk | 918,760 acres (3,718.1 $km^2)$ |
| 13 | Sussex | 907,920 acres (3,674.2 $km^2)$ |
| 14 | Wiltshire | 869,620 acres (3,519.2 $km^2)$ |
| 15 | Shropshire | 864,360 acres (3,497.9 $km^2)$ |
| 16 | Cornwall | 854,770 acres (3,459.1 $km^2)$ |
| 17 | Gloucestershire | 790,470 acres (3,198.9 $km^2)$ |
| 18 | Staffordshire | 736,290 acres (2,979.7 $km^2)$ |
| 19 | County Durham | 679,530 acres (2,750.0 $km^2)$ |
| 20 | Derbyshire | 663,180 acres (2,683.8 $km^2)$ |
| 21 | Cheshire | 649,050 acres (2,626.6 $km^2)$ |
| 22 | Northamptonshire | 646,810 acres (2,617.5 $km^2)$ |
| 23 | Dorset | 627,220 acres (2,538.3 $km^2)$ |
| 24 | Warwickshire | 567,930 acres (2,298.3 $km^2)$ |
| 25 | Herefordshire | 543,800 acres (2,201 $km^2)$ |
| 26 | Cambridgeshire | 536,853 acres (2,172.57 $km^2)$ |
| 27 | Nottinghamshire | 525,800 acres (2,128 $km^2)$ |
| 28 | Leicestershire | 511,340 acres (2,069.3 $km^2)$ |
| 29 | Westmorland | 485,990 acres (1,966.7 $km^2)$ |
| 30 | Surrey | 474,480 acres (1,920.2 $km^2)$ |
| 31 | Berkshire | 472,270 acres (1,911.2 $km^2)$ |
| 32 | Oxfordshire | 467,380 acres (1,891.4 $km^2)$ |
| 33 | Buckinghamshire | 463,820 acres (1,877.0 $km^2)$ |
| 34 | Worcestershire | 459,710 acres (1,860.4 $km^2)$ |
| 35 | Hertfordshire | 400,370 acres (1,620.2 $km^2)$ |
| 36 | Monmouthshire | 324,310 acres (1,312.4 $km^2)$ |
| 37 | Bedfordshire | 297,632 acres (1,204.47 $km^2)$ |
| 38 | Huntingdonshire | 241,690 acres (978.1 $km^2)$ |
| 39 | Middlesex | 179,590 acres (726.8 $km^2)$ |
| 40 | Rutland | 97,500 acres (395 $km^2)$ |
