https://en.wikipedia.org/wiki/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) 2 Lincolnshire: 2) 3 Devon: 2) 4 Norfolk: 1,292,300 acres (5,230 km 2) 5 Northumberland: 2) 6 Somerset: 2) 7 Hampshire: 2) 8 Essex: