Parishes
Parish Name | Type of Parish | Duration | Notes
| Caerhun | Parish (ancient), Civil parish | 1934-1974 | from Conway RD
| Capel Curig | Civil parish | 1934-1934 | from Geirionydd RD
| Dolgarrog | Township, Civil parish | 1934-1974 | from Conway RD
| Dolwyddelan | Parish (ancient), Civil parish | 1934-1974 | from Geirionydd RD
| Eidda | Township, Civil parish | 1931-1974 | from Geirionydd RD
| Henryd | Civil parish | 1931-1974 | new community or civil parish formed from Llechwedd in Conwy Rural District
| Llanbedrycennin | Parish (ancient), Civil parish | 1934-1974 | from Conway RD
| Llangelynnin | Parish (ancient), Civil parish | 1934-1974 | from Conway RD
| Llangystennin | Parish (ancient), Civil parish | 1934-1974 | from Conway RD
| Llanrhychwyn | Parish (ancient), Civil parish | 1931-1974 | from Geirionydd RD
| Maenan | Township, Parish (ancient), Civil parish | 1934-1974 |
| Penmachno | Parish (ancient), Civil parish | 1931-1974 | from Geirionydd RD
| The Abbey | Extra parochial area, Civil parish | 1934-1974 | from Geirionydd RD
| Trefriw | Parish (ancient), Civil parish | 1931-1974 | from Geirionydd RD
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