1841 PRO reference HO107/1392/2 Enumeration District 9
All Carnguwch Parish.
1851 PRO reference HO107/2513 Enumeration District 7
The whole of the Parish of Carnguwch; (including the Mountain of Carnguwch, Carnguwch Fawr, Carnguwch Bach, Carnguwch Mill, Blaenau and Cae'r Gribyn.
1861 PRO reference RG9/4329 Enumeration District 16
1871 PRO reference RG10/5703 Enumeration District 16
The whole of the Parish of Carnguwch including the Mountain of Carnguwch, Caercribyn, Blaenau, Rhydau Gloywon, Carnguwch Fawr, Carnguwch Mill etc.
1881 Enumeration District 16 RG11/5556
The whole of the Parish of Carnguwch :- including the Mountain of Carnguwch, Caecribin, Rhydau Gloywon, Carnguwch Fawr, Carnguwch Mill etc
1891 Enumeration District
The whole of the parish of Carnguwch including the Mountain of Carnguwch, Caercribin, Blaenau, Rhydau Gloywon, Carnguwch Fawr, Carnguwch Mill etc. All the remaining part of the Parish of Llanaelhaiarn which lies to the West of the village including Penybont, Uwchlaw'r Ffynon, Gellia etc.
1901 Enumeration District
The Whole of the Parish of Carnguwch including Carnguwch Mountain, Blaenau, Rhydau Gloewon, Carnguwch Fawr, Carnguwch Mill etc.
1911 Enumeration District
The Whole of the Parish of Carnguwch including Carnguwch Mountain, Blaenau, Rhydau Gloewon, Carnguwch Fawr, Carnguwch Mill etc.