| Aber-craf and YstradgynlaisAber-craf ac Ystradgynlais | 3,984 | 1,837 | 104 | 24.7% | 64.6% | 17.0% | Brecon, Radnor and Cwm Tawe |
| Banwy, Llanfihangel and LlanwddynBanwy, Llanfihangel a Llanwddyn | 2,151 | 958 | 7 | 30.1% | 78.2% | 4.5% | Montgomeryshire and Glyndŵr |
| Berriew and Castle CaereinionAberriw a Chastell Caereinion | 1,947 | 868 | 26 | 27.7% | 68.4% | 5.6% | Montgomeryshire and Glyndŵr |
| Brecon EastDwyrain Aberhonddu | 4,026 | 1,857 | 652 | 29.2% | 65.5% | 18.8% | Brecon, Radnor and Cwm Tawe |
| Brecon WestGorllewin Aberhonddu | 4,230 | 1,858 | 858 | 20.1% | 47.4% | 21.8% | Brecon, Radnor and Cwm Tawe |
| Bronllys and Felin-fachBronllys a Felin-fach | 1,965 | 919 | 16 | 29.5% | 71.2% | 6.0% | Brecon, Radnor and Cwm Tawe |
| BuilthLlanfair-ym-Muallt | 2,469 | 1,162 | 824 | 24.7% | 63.3% | 18.0% | Brecon, Radnor and Cwm Tawe |
| CaerswsCaersŵs | 2,272 | 1,036 | 25 | 28.7% | 73.6% | 9.2% | Montgomeryshire and Glyndŵr |
| ChurchstokeYr Ystog | 1,740 | 736 | 35 | 33.4% | 73.6% | 6.1% | Montgomeryshire and Glyndŵr |
| Crickhowell with Cwmdu and TretowerCrucywel gyda Chwm-du a Thretŵr | 3,495 | 1,569 | 31 | 33.1% | 72.0% | 9.4% | Brecon, Radnor and Cwm Tawe |
| Cwm-twrch | 2,219 | 934 | 170 | 23.6% | 66.2% | 17.0% | Brecon, Radnor and Cwm Tawe |
| Disserth and Trecoed with NewbridgeDiserth a Thre-coed gyda'r Bontnewydd-ar-Wy | 1,839 | 909 | 49 | 37.4% | 73.1% | 11.9% | Brecon, Radnor and Cwm Tawe |
| Dolforwyn | 2,034 | 858 | 42 | 25.9% | 74.8% | 4.8% | Montgomeryshire and Glyndŵr |
| Forden and MontgomeryFfordun a Threfaldwyn | 2,462 | 1,118 | 62 | 29.4% | 68.8% | 7.4% | Montgomeryshire and Glyndŵr |
| Glantwymyn | 2,055 | 902 | 9 | 25.7% | 78.5% | 7.4% | Montgomeryshire and Glyndŵr |
| GlasburyY Clas-ar-Wy | 1,756 | 809 | 24 | 32.8% | 76.5% | 4.8% | Brecon, Radnor and Cwm Tawe |
| GuilsfieldCegidfa | 1,650 | 758 | 55 | 33.3% | 78.6% | 11.9% | Montgomeryshire and Glyndŵr |
| Gwernyfed | 1,482 | 643 | 21 | 28.8% | 76.1% | 6.1% | Brecon, Radnor and Cwm Tawe |
| HayY Gelli | 1,680 | 897 | 1,023 | 32.2% | 56.2% | 20.1% | Brecon, Radnor and Cwm Tawe |
| Ithon ValleyDyffryn Ieithon | 2,120 | 910 | 11 | 28.9% | 78.4% | 5.7% | Brecon, Radnor and Cwm Tawe |
| KerryCeri | 1,604 | 712 | 25 | 27.7% | 73.8% | 7.2% | Montgomeryshire and Glyndŵr |
| Knighton with BeguildyTrefyclo gyda Bugeildy | 3,603 | 1,695 | 36 | 30.4% | 67.6% | 14.7% | Brecon, Radnor and Cwm Tawe |
| Llanafanfawr with GarthLlanafan-fawr gyda Garth | 1,613 | 714 | 7 | 31.7% | 78.4% | 7.0% | Brecon, Radnor and Cwm Tawe |
| Llanbrynmair | 1,845 | 825 | 9 | 31.0% | 82.8% | 3.9% | Montgomeryshire and Glyndŵr |
| Llandinam with DolforLlandinam gyda Dolfor | 1,794 | 753 | 15 | 28.4% | 79.9% | 4.9% | Montgomeryshire and Glyndŵr |
| Llandrindod NorthGogledd Llandrindod | 2,185 | 970 | 619 | 22.2% | 61.4% | 15.1% | Brecon, Radnor and Cwm Tawe |
| Llandrindod SouthDe Llandrindod | 3,413 | 1,828 | 373 | 32.8% | 53.5% | 27.0% | Brecon, Radnor and Cwm Tawe |
| Llandrinio | 2,149 | 894 | 49 | 24.7% | 81.3% | 5.3% | Montgomeryshire and Glyndŵr |
| Llandysilio | 1,854 | 823 | 98 | 26.6% | 76.9% | 6.2% | Montgomeryshire and Glyndŵr |
| Llanelwedd | 1,733 | 758 | 10 | 28.9% | 77.5% | 5.1% | Brecon, Radnor and Cwm Tawe |
| Llanfair Caereinion and LlanerfylLlanfair Caereinion a Llanerfyl | 2,137 | 891 | 17 | 25.9% | 73.6% | 7.4% | Montgomeryshire and Glyndŵr |
| Llanfyllin | 1,585 | 694 | 38 | 25.8% | 66.2% | 13.8% | Montgomeryshire and Glyndŵr |
| Llangattock and LlangynidrLlangatwg a Llangynidr | 1,981 | 882 | 24 | 34.6% | 78.7% | 7.8% | Brecon, Radnor and Cwm Tawe |
| Llangors with BwlchLlan-gors gyda Bwlch | 1,466 | 624 | 33 | 30.2% | 77.8% | 5.6% | Brecon, Radnor and Cwm Tawe |
| Llangunllo with NortonLlangynllo gyda Norton | 1,626 | 748 | 13 | 39.6% | 82.6% | 3.9% | Brecon, Radnor and Cwm Tawe |
| Llangyniew and MeifodLlangynyw a Meifod | 1,938 | 819 | 24 | 28.4% | 77.7% | 6.1% | Montgomeryshire and Glyndŵr |
| Llanidloes | 4,181 | 2,018 | 22 | 28.7% | 64.8% | 15.1% | Montgomeryshire and Glyndŵr |
| Llanrhaeadr-ym-Mochnant and LlansilinLlanrhaeadr-ym-Mochnant a Llansilin | 2,293 | 993 | 16 | 27.8% | 73.6% | 5.8% | Montgomeryshire and Glyndŵr |
| LlansantffraidLlansanffraid | 1,988 | 873 | 48 | 30.1% | 70.1% | 5.7% | Montgomeryshire and Glyndŵr |
| Llanwrtyd WellsLlanwrtyd | 1,552 | 736 | 7 | 32.3% | 74.6% | 10.0% | Brecon, Radnor and Cwm Tawe |
| Llanyre with NantmelLlanllŷr gyda Nantmel | 2,108 | 913 | 10 | 31.9% | 83.3% | 3.9% | Brecon, Radnor and Cwm Tawe |
| Machynlleth | 2,161 | 1,031 | 427 | 26.0% | 53.8% | 27.6% | Montgomeryshire and Glyndŵr |
| Maescar and LlywelMaes-car a Llywel | 1,747 | 771 | 7 | 25.5% | 73.0% | 7.7% | Brecon, Radnor and Cwm Tawe |
| Newtown Central and SouthCanol a De'r Drenewydd | 5,166 | 2,147 | 1,321 | 14.9% | 40.1% | 26.8% | Montgomeryshire and Glyndŵr |
| Newtown EastDwyrain y Drenewydd | 2,105 | 1,008 | 264 | 20.8% | 38.7% | 34.9% | Montgomeryshire and Glyndŵr |
| Newtown NorthGogledd y Drenewydd | 2,199 | 1,102 | 325 | 27.9% | 64.5% | 17.2% | Montgomeryshire and Glyndŵr |
| Newtown WestGorllewin y Drenewydd | 1,893 | 895 | 232 | 26.8% | 68.5% | 20.6% | Montgomeryshire and Glyndŵr |
| Old RadnorPencraig | 1,683 | 727 | 11 | 30.9% | 76.0% | 5.1% | Brecon, Radnor and Cwm Tawe |
| PresteigneLlanandras | 1,930 | 925 | 197 | 31.8% | 64.8% | 12.5% | Brecon, Radnor and Cwm Tawe |
| RhayaderRhaeadr Gwy | 2,083 | 988 | 15 | 30.9% | 57.4% | 16.5% | Brecon, Radnor and Cwm Tawe |
| Rhiwcynon | 2,175 | 924 | 20 | 26.9% | 79.6% | 5.4% | Montgomeryshire and Glyndŵr |
| Talgarth | 1,701 | 755 | 31 | 26.1% | 65.4% | 14.0% | Brecon, Radnor and Cwm Tawe |
| Talybont-on-UskTal-y-bont ar Wysg | 1,872 | 828 | 9 | 30.0% | 78.1% | 4.8% | Brecon, Radnor and Cwm Tawe |
| Tawe Uchaf | 2,082 | 902 | 18 | 28.7% | 77.6% | 11.9% | Brecon, Radnor and Cwm Tawe |
| Trelystan and TrewernTrelystan a Thre-wern | 1,734 | 742 | 38 | 26.7% | 77.3% | 5.8% | Montgomeryshire and Glyndŵr |
| Welshpool CastleY Trallwng Castell | 2,532 | 1,236 | 136 | 24.5% | 30.1% | 37.2% | Montgomeryshire and Glyndŵr |
| Welshpool GungrogY Trallwng Gungrog | 2,285 | 990 | 171 | 22.6% | 60.3% | 16.2% | Montgomeryshire and Glyndŵr |
| Welshpool LlanerchyddolY Trallwng Llanerchyddol | 1,820 | 819 | 264 | 24.3% | 66.1% | 16.0% | Montgomeryshire and Glyndŵr |
| YnyscedwynYnysgedwyn | 2,064 | 960 | 543 | 30.9% | 75.1% | 16.2% | Brecon, Radnor and Cwm Tawe |
| Yscir with Honddu Isaf and LlanddewYsgir gyda Honddu Isaf a Llan-ddew | 1,720 | 728 | 9 | 29.3% | 78.0% | 4.5% | Brecon, Radnor and Cwm Tawe |