Church and chapel data from The Religious census of 1851 : A Calendar of the returns relating to Wales, Vol 11, North Wales. Ed. by Ieuan Gwynedd Jones, UWP, 1981. The names given towards the end of each entry are those of the informants.
Parish statistics; Area 20190 acres; Population 279 males, 241 females, total 520
- Llanwddyn Parish Church Attendance - morning 53, afternoon 46 Services in Welsh John Evans, Curate
- Sardis, Independent Denomination Erected 28 years Attendance - morning 75 + 25 scholars John Lloyd, Deacon, Gwreiddie, Llanowddyn
- Bethania, Calvinistic Methodist Erected 1827 Attendance - morning 40, afternoon 30 scholars Rowland Evans, Deacon, Cefncoch, Llanwddyn
- Saron, Independent Erected 24 years Attendance - morning 52, afternoon 22 scholars Robert Rees, Deacon, Dyfnant, Llangadfan
- Bethel Chapel, Calvinistic Methodist Erected 1822 Attendance - morning 40 scholars, afternoon 85, evening 107 Thomas Davies, Deacon
- Penyal Chapel, Rhiwargar Township, Calvinistic Methodist Erected 1840 Attendance - morning 30 scholars David Moses, Manager
- Wesleyan Chapel, Llanwddyn Erected 1808 Attendance - morning 30 scholars, afternoon 80, evening 120 (No signature)
From the Victorian Powys for schools site - The drowned village of Llanwddyn
"The parish church, two chapels ...... were all to be lost under the rising waters........... the remains of the dead were removed from the churchyard and reburied next to the new church. (1881-89)"
Details of modern benefice of Llanwdddyn et al on the Church in Wales site
Rees, Thomas & John Thomas. Hanes Eglwysi Annibynnol Cymru (History of the Welsh Independent Churches), 4 volumes (published 1871+). Here is the entry from this book for Sardis. Llanwddyn chapel (in Welsh ) - with translation by Maureen Saycell (March 2010)