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.
Pwllheli Borough in Denio Parish; Statistics; Area 1278 acres; Population 1063 males, 1268 females, total 2331
- Pwllheli St Peter's Parish Church (Denio) Consecrated 1833 Attendance - morning 124 + 18 scholars, evening 111 + 13 scholars "Perpetual curacy annexed gto the vicarage of Llannor - Lewis 1849" Thos. Jones, Vicar
- The return also mentions a missing return for "Church of England" [?]
- Baptist Chapel Erected 1816 Attendance - morning 150, afternoon 130 scholars, evening 200 Evan Pritchard, Deacon, Carnarvon Rd
- Penymount Chapel, Calvinistic Methodist Re-erected the 4th time 1842 Attendance - average - morning 650, afternoon 461 scholars, evening 1100 Owen Edwards, Elder, Draper
- Penlan Chapel, Goal [Gaol?] St, Independent Erected 1814 Attendance - morning 118 scholars, afternoon 171, evening 144 "The present Chapel is the third erected on or near the same site. The second was recorded AD 1741 and the first is supposed to have been erected about the year 1650 " Rees Philpot Griffith, Independent Minister
- Wesley St Chapel, Wesleyan Methodist Erected 1804 Attendance - morning 92, afternoon 146 scholars, evening 206 Robert Jones, Wesleyan Minister