Parishes
| Parish Name | Type of Parish | Duration | Notes
| | Aberllynfi | Township, Civil parish | 1894-1974 |
| | Bronllys | Parish (ancient), Civil parish | 1894-1974 |
| | Glyn Fach | Township, Parish (ancient), Civil parish | 1894-1974 |
| | Hay Rural (parish) | Civil parish | 1894-1974 |
| | Llaneleu | Parish (ancient), Civil parish | 1894-1974 |
| | Llanigon | Parish (ancient), Civil parish | 1894-1974 |
| | Llys Wen | Parish (ancient), Civil parish | 1894-1974 |
| | Pipton | Township, Civil parish | 1894-1974 |
| | Talgarth | Parish (ancient), Civil parish | 1894-1974 |
| | Tre Goed and Felindre | Township, Civil parish | 1894-1974 |
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