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.
Llanfair-fechan Parish; Statistics; Area 6521 acres; Population 422 males, 387 females, total 809
- Llanfairfechan Parish Church Rebuilt and consecrated 1849 Attendance - morning 110, afternoon 73 "The only weekly instruction given in the Parish is under the Superintendance of the Established Church. Children of all denominations are admitted and no objection has been made by any to the course of instruction. The children are not compelled to attend at Church but do so voluntarily in considerable numbers. On the thirty-first of March there were strange singers invited to one of the Dissenting chapels which attracted many of the usual attendants at the Church which made the congregation less than average" Services in Welsh James V Vincent, Rector
- Horeb, Calvinistic Methodist Erected 1816 Attendance - morning 213, afternoon 180 scholars, evening 295 Hugh Davies, Deacon
- Llanfair Chapel, Wesleyan Methodists Erected 1830 Attendance - morning 55 scholars, afternoon 85, evening 72 John Evans, Wesleyan Minister, Bangor