History of local government in Wales
Administrative Counties
Columns: Administrative county | Area 1891 (Statute acres) | Population 1891 | Area 1961 (Statute acres) | Population 1961
Anglesey | 175836 | 50098 | 176694 | 51705 | Brecknockshire | 469894 | 51393 | 469281 | 55185 | Cardiganshire | 443071 | 63467 | 443189 | 53648 | Carmarthenshire | 587816 | 130566 | 588271 | 168008 | Caernarfonshire (1) | 360138 | 117233 | 364108 | 121767 | Denbighshire | 424235 | 118843 | 427978 | 174151 | Flintshire | 164051 | 77277 | 163707 | 150082 | Glamorgan | 505815 | 467954 | 468808 | 523253 | Merionethshire | 427810 | 49212 | 422372 | 38310 | Monmouthshire (2) | 342548 | 203347 | 346779 | 336556 | Montgomeryshire | 510111 | 58003 | 510110 | 41165 | Pembrokeshire | 392710 | 88296 | 393008 | 94124