List of counties of Wales by area in 1831

This is a list of the historic counties of Wales as recorded by the 1831 census, ordered by their area.

Rank	County	Area (acres)
1	Carmarthenshire	606,331
2	Glamorgan	547,494
3	Montgomeryshire	483,323
4	Brecknockshire	460,158
5	Cardiganshire	443,387
6	Pembrokeshire	401,691
7	Denbighshire	386,052
8	Merionethshire	385,291
9	Caernarfonshire	370,273
10	Monmouthshire	324,310
11	Radnorshire	272,128
12	Anglesey	193,453
13	Flintshire	184,905

References

• 1831 census