List of localities in Wales by population
The following is a list of localities in Wales by population according to the 2011 Census.
| Rank | Built-up Area | Population | Notes |
| 1 | Cardiff | 447,287 | Includes Caerphilly/Pontypridd/Penarth |
| 2 | Newport | 306,844 | Includes Cwmbran/Pontypool/Blackwood |
| 3 | Swansea | 300,352 | Includes Neath/Port Talbot/Pontardawe/Ystradgynlais |
| 4 | Wrexham | 65,692 | Includes Rhostyllen/Gwersyllt |
| 5 | Buckley | 63,576 | Includes Connah's Quay/Shotton |
| 6 | Tonypandy | 62,545 | Includes Treorchy/Porth |
| 7 | Bridgend | 58,380 | Includes Wild Mill/Tondu/Sarn |
| 8 | Barry | 54,673 | Includes Sully |
| 9 | Llanelli | 49,591 | Includes Llangennech |
| 10 | Cwmbran | 46,915 | Includes Llantarnam/Llanyravon |
| 11 | Rhyl/Prestatyn | 46,267 | |
| 12 | Merthyr Tydfil | 43,820 | Includes Dowlais/Gellideg |
| 13 | Caerphilly | 41,402 | Includes Penyrheol/Bedwas |
| 14 | Colwyn Bay | 34,284 | |
| 15 | Ebbw Vale/Brynmawr/Nantyglo | 33,068 | |
| 16 | Aberdare | 31,135 | |
| 17 | Pontypridd | 30,457 | |
| 18 | Penarth | 27,226 | |
| 19 | Flint | 26,442 | Includes Holywell/Bagillt |
| 20 | Rhosllanerchrugog | 25,362 | |
| 21 | Blackwood | 24,042 | |
| 22 | Ammanford | 23,709 | |
| 23 | Church Village/Llantwit Fardre | 23,277 | |
| 24 | Maesteg | 21,001 | |
| 25 | Gorseinon | 20,581 | |
| 26 | Neath | 19,258 | |
| 27 | Ystrad Mynach | 19,204 | |
| 28 | Aberystwyth | 18,749 | |
| 29 | Kinmel Bay/Abergele | 18,705 | |
| 30 | Bangor | 17,988 | |
| 31 | Connah's Quay | 16,774 | |
| 32 | Carmarthen | 15,854 | |
| 33 | Porthcawl | 15,672 | |
| 34 | Llandudno | 15,371 | |
| 35 | Risca | 14,958 | |
| 36 | Tredegar | 14,855 | |
| 37 | Abergavenny | 14,651 | |
| 38 | Ely, Cardiff | 14,603 | |
| 39 | Haverfordwest | 14,596 | |
| 40 | Llantrisant | 14,422 | |
| 41 | Llantwit Major | 14,384 | |
| 42 | Pyle | 13,701 | |
| 43 | Milford Haven | 13,582 | |
| 44 | Splott | 13,261 | |
| 45 | Treharris | 12,352 | |
| 46 | Bargoed | 11,900 | |
| 47 | Holyhead | 11,431 | |
| 48 | Newtown | 11,357 | |
| 49 | Mountain Ash | 11,230 | |
| 50 | Cil-y-coed | 11,200 | |
| 51 | Bryn Pydew | 11,109 | |
| 52 | Llanrumney | 11,060 | |
| 53 | Abertillery | 10,946 | |
| 54 | Bedwas | 10,758 | |
| 55 | Monmouth | 10,110 | |
| 56 | Mold | 10,058 | |
| 57 | Pembroke Dock | 9,753 | |
| 58 | Caernarfon | 9,730 | |
| 59 | Newbridge, Caerphilly | 9,590 | |
| 60 | Tonyrefail | 9,317 | |
| 61 | Pencoed | 9,166 | |
| 62 | Pontarddulais | 9,073 | |
| 63 | Llandaff | 8,997 | |
| 64 | Caerleon | 8,747 | |
| 65 | Rhymney | 8,537 | |
| 66 | Denbigh | 8,514 | |
| 67 | Burry Port | 8,310 | |
| 68 | Brecon | 8,250 | |
| 69 | Pembroke | 7,552 | |
| 70 | Ferndale | 7,338 | |
| 71 | Hirwaun | 7,247 | |
| 72 | Brynna | 6,686 | |
| 73 | Abertridwr | 6,504 | |
| 74 | Radyr | 6,417 | |
| 75 | Rhoose | 6,160 | |
| 76 | Abercynon | 5,983 | |
| 77 | Broughton | 5,974 | |
| 78 | Welshpool | 5,948 | |
| 79 | Undy | 5,914 | |
| 80 | Coedpoeth | 5,723 | |
| 81 | Gwaun-Cae-Gurwen/Brynamman | 5,692 | |
| 82 | Blaenavon | 5,647 | |
| 83 | Ogmore Vale/Nantymoel | 5,461 | |
| 84 | Ruthin | 5,461 | |
| 85 | Glyn-neath | 5,419 | |
| 86 | Cwmavon | 5,336 | |
| 87 | Llandrindod Wells | 5,309 | |
| 88 | Cardigan | 5,301 | |
| 89 | Gresford | 5,010 | |
| 90 | New Tredegar | 4,966 | |
| 91 | Menai Bridge | 4,958 | |
| 92 | Llangefni | 4,864 | |
| 93 | Bethesda | 4,735 | |
| 94 | Hope | 4,706 | |
| 95 | Tenby | 4,696 | |
| 96 | Llay | 4,681 | |
| 97 | Gilfach Goch | 4,395 | |
| 98 | Glanaman | 4,384 | |
| 99 | Pontycymer | 4,288 | |
| 100 | Pwllheli | 4,076 | |
| 101 | Glyncoch | 4,020 | |
| 102 | Conwy | 3,873 | |
| 103 | Cowbridge | 3,804 | |
| 104 | Llanbradach | 3,746 | |
| 105 | Rhuddlan | 3,709 | |
| 106 | Neyland | 3,708 | |
| 107 | Blaenau Ffestiniog | 3,662 | Does not include Tanygrisiau |
| 108 | Llanfairfechan | 3,637 | |
| 109 | Penyffordd | 3,554 | |
| 110 | Aberfan | 3,547 | |
| 111 | Ynysybwl | 3,503 | |
| 112 | Murton | 3,500 | |
| 113 | Llangollen | 3,466 | |
| 114 | Fishguard | 3,419 | |
| 115 | Saundersfoot | 3,361 | |
| 116 | St Asaph | 3,355 | |
| 117 | Llanrwst | 3,323 | |
| 118 | Amlwch | 3,211 | |
| 119 | Maerdy | 3,160 | |
| 120 | Llanfair Pwllgwyngyll | 3,107 | |
| 121 | Tywyn | 3,097 | |
| 122 | Marshfield | 3,054 | |
| 123 | Llanharry | 3,035 | |
| 124 | Llanhilleth | 2,990 | |
| 125 | Porthmadog | 2,981 | |
| 126 | Lampeter | 2,970 | |
| 127 | Llanidloes | 2,929 | |
| 128 | Usk | 2,834 | |
| 129 | Builth Wells | 2,829 | |
| 130 | Llandybie | 2,813 | |
| 131 | Kidwelly | 2,782 | |
| 132 | Cwm | 2,739 | |
| 133 | Talbot Green | 2,734 | |
| 134 | Dolgellau | 2,688 | |
| 135 | Llanddulas/Mynydd Marian | 2,674 | |
| 136 | St Clears | 2,663 | |
| 137 | Penmaenmawr | 2,535 | |
| 138 | Creigiau | 2,380 | |
| 139 | Machen | 2,362 | |
| 140 | Valley | 2,361 | |
| 141 | Cwmfelinfach/Ynysddu | 2,342 | |
| 142 | Barmouth | 2,315 | |
| 143 | Pentyrch | 2,287 | |
| 144 | Y Felinheli | 2,284 | |
| 145 | Leeswood | 2,282 | |
| 146 | Narberth | 2,265 | |
| 147 | Gilwern | 2,263 | |
| 148 | Benllech | 2,236 | |
| 149 | Bettws | 2,253 | |
| 150 | Machynlleth | 2,235 | |
| 151 | Seven Sisters | 2,123 | |
| 152 | Tanyfron | 2,090 | |
| 153 | Resolven | 2,068 | |
| 154 | Llandovery | 2,065 | |
| 155 | Crickhowell | 2,063 | |
| 156 | Southgate | 2,004 | |
| 157 | Underwood | 1,976 | |
| 158 | Bala | 1,974 | |
| 159 | Kilgetty | 1,968 | |
| 160 | Johnston | 1,941 | |
| 161 | Pen-clawdd | 1,935 | |
| 162 | Llanrug | 1,916 | |
| 163 | Newcastle Emlyn | 1,883 | |
| 164 | Llanberis | 1,844 | |
| 165 | Rhayader | 1,824 | |
| 166 | Rogiet | 1,813 | |
| 167 | Llandeilo | 1,795 | |
| 168 | Bodelwyddan | 1,794 | |
| 169 | Penygroes | 1,793 | |
| 170 | Harlech | 1,762 | |
| 171 | Criccieth | 1,753 | |
| 172 | Llansanffraid Glan Conwy | 1,735 | |
| 173 | Gwernaffield-y-Waun/Pantymwyn | 1,734 | |
| 174 | Goodwick | 1,720 | |
| 175 | Soughton | 1,710 | |
| 176 | Higher Kinnerton | 1,697 | |
| 177 | Pontyberem | 1,695 | |
| 178 | Aberporth | 1,648 | |
| 179 | Pontlliw | 1,645 | |
| 180 | Mostyn | 1,606 | |
| 181 | Crynant | 1,602 | |
| 182 | Trimsaran | 1,584 | |
| 183 | Three Crosses | 1,583 | |
| 184 | Bow Street | 1,572 | |
| 185 | Waunlwyd | 1,556 | |
| 186 | Gaerwen | 1,551 | |
| 187 | Penrhyndeudraeth | 1,546 | |
| 188 | Pen-twyn | 1,540 | |
| 189 | Tal-y-bont | 1,540 | |
| 190 | Trearddur | 1,537 | |
| 191 | Whitland | 1,514 | |
| 192 | Pont Rhyd-y-cyff | 1,505 | |
| 193 | Markham | 1,495 | |
| 194 | Llandysul | 1,484 | |
| 195 | Pontyates | 1,449 | |
| 196 | Govilon | 1,447 | |
| 197 | Four Crosses | 1,438 | |
| 198 | Aberaeron | 1,422 | |
| 199 | St Davids | 1,408 | |
| 200 | Cwmllynfell | 1,405 | |
| 201 | Deiniolen | 1,379 | |
| 202 | Nefyn | 1,373 | |
| 203 | Beaumaris | 1,370 | |
| 204 | Blaengwynfi | 1,362 | |
| 205 | Treuddyn | 1,360 | |
| 206 | Dwygyfylchi | 1,355 | |
| 207 | Waungilwen | 1,338 | |
| 208 | Cefn Cribwr | 1,324 | |
| 209 | Penrhyn-coch | 1,316 | |
| 210 | Penperlleni | 1,311 | |
| 211 | Tregarth | 1,307 | |
| 212 | Coedhirwaun | 1,299 | |
| 213 | Borth | 1,269 | |
| 214 | Talgarth | 1,268 | |
| 215 | Gronant | 1,258 | |
| 216 | Fochriw | 1,250 | |
| 217 | Letterston | 1,245 | |
| 218 | Guilsfield | 1,220 | |
| 219 | Llanybyther | 1,218 | |
| 220 | Tregaron | 1,213 | |
| 221 | Pentlepoir | 1,211 | |
| 222 | Caerwent | 1,201 | |
| 223 | Waunfawr | 1,190 | |
| 224 | Cemaes | 1,187 | |
| 225 | Raglan | 1,183 | |
| 226 | Bethel | 1,171 | |
| 227 | Wenvoe | 1,155 | |
| 228 | Gwernymynydd | 1,141 | |
| 229 | Llanerchymedd | 1,133 | |
| 230 | Grovesend | 1,131 | |
| 231 | Bedlinog | 1,112 | |
| 232 | Bangor-on-Dee | 1,110 | |
| 233 | Pencader | 1,107 | |
| 234 | Llanfyllin | 1,105 | |
| 235 | Glyncorrwg | 1,096 | |
| 236 | Pentre Halkyn | 1,094 | |
| 237 | Marchwiel | 1,092 | |
| 238 | Talysarn | 1,086 | |
| 239 | Llanilar | 1,085 | |
| 240 | Llanfair Caereinion | 1,055 | |
| 241 | Bodedern | 1,051 | |
| 242 | Trefechan | 1,042 | |
| 243 | Llangynidr | 1,036 | |
| 244 | Crofty | 1,012 | |
| 245 | Rhosneigr | 1,008 | |
| 246 | Deri | 1,006 | |
| 247 | Northop | 1,001 | |
| 248 | Trefnant | 993 | |
| 249 | Pont-henri | 987 | |
| 250 | Montgomery | 986 | |
| 251 | Llangeinor | 973 | |
| 252 | Overton-on-Dee | 965 | |
| 253 | Bontnewydd | 951 | |
| 254 | Caerwys | 950 | |
| 255 | Bryn | 923 | |
| 256 | Abermule | 900 | |
| 257 | Newborough | 892 | |
| 258 | Tregynon | 892 | |
| 259 | Argoed | 891 | |
| 260 | Tircoed | 884 | |
| 261 | Broad Haven | 880 | |
| 262 | Groeslon | 880 | |
| 263 | Ogmore-by-Sea | 878 | |
| 264 | Llangwm | 875 | |
| 265 | Llechryd | 875 | |
| 266 | Craig Cefn Parc | 874 | |
| 267 | Cwmann | 872 | |
| 268 | Llannon | 869 | |
| 269 | Cilgerran | 865 | |
| 270 | Llan Ffestiniog | 864 | |
| 271 | Henllan | 862 | |
| 272 | Morfa Nefyn | 857 | |
| 273 | Sageston | 857 | |
| 274 | Bwlchgwyn | 855 | |
| 275 | Newport | 851 | |
| 276 | Llangoed | 849 | |
| 277 | Penally | 848 | |
| 278 | Ferryside | 846 | |
| 279 | Hook | 838 | |
| 280 | New Brighton | 838 | |
| 281 | Pontrhydyfen | 830 | |
| 282 | Cosheston | 828 | |
| 283 | Laugharne | 817 | |
| 284 | Caersws | 816 | |
| 285 | Dinas Cross | 815 | |
| 286 | Trefor | 814 | |
| 287 | Glyn Ceiriog | 804 | |
| 288 | Kerry | 785 | |
| 289 | Abersoch | 783 | |
| 290 | Clyro | 781 | |
| 291 | Ewenny | 768 | |
| 292 | St Arvans | 765 | |
| 293 | Llanfihangel yn Nhowyn | 757 | |
| 294 | St Florence | 756 | |
| 295 | Pen-y-ffordd | 748 | |
| 296 | Llandyrnog | 747 | |
| 297 | Llansanffraid-ym-Mechain | 747 | |
| 298 | Forden | 745 | |
| 299 | Parc-Seymour | 744 | |
| 300 | St Brides Major | 741 | |
| 301 | Pant-yr-awel | 734 | |
| 302 | Maenclochog | 731 | |
| 303 | Carno | 730 | |
| 304 | Dyffryn Cellwen | 727 | |
| 305 | Aberdovey | 725 | |
| 306 | Fairbourne | 721 | |
| 307 | Rhigos | 718 | |
| 308 | Gwalchmai | 715 | |
| 309 | Waunllapria | 714 | |
| 310 | Pontrhydfendigaid | 712 | |
| 311 | Rhosybol | 712 | |
| 312 | Moelfre | 710 | |
| 313 | Solva | 710 | |
| 314 | Crymych | 704 | |
| 315 | Wick | 698 | |
| 316 | Abercrave | 696 | |
| 317 | New Quay | 694 | |
| 318 | Clydach | 692 | |
| 319 | Llanddona | 691 | |
| 320 | Groes-faen | 685 | |
| 321 | Llandre | 679 | |
| 322 | Clunderwen | 677 | |
| 323 | Rhostryfan | 675 | |
| 324 | Hill Mountain | 673 | |
| 325 | Carway | 672 | |
| 326 | Trelogan | 671 | |
| 327 | Flint Mountain | 670 | |
| 328 | Llangattock | 662 | |
| 329 | Tal-y-bont | 662 | |
| 330 | Mynydd-bach/Shirenewton | 657 | |
| 331 | Blackmill | 654 | |
| 332 | Llangadog | 650 | |
| 333 | Llanrhystud | 646 | |
| 334 | Chwilog | 640 | |
| 335 | Llanddewi Brefi | 640 | |
| 336 | Pwllmeyric | 635 | |
| 337 | Jameston | 634 | |
| 338 | Llanwrtyd Wells | 630 | |
| 339 | Trawsfynydd | 628 | |
| 340 | Templeton | 627 | |
| 341 | Bryncrug | 622 | |
| 342 | Brawdy | 620 | |
| 343 | Stepaside | 619 | |
| 344 | Llanbedrog | 613 | |
| 345 | Rosemarket | 613 | |
| 346 | Lixwm | 610 | |
| 347 | Cross Lanes | 609 | |
| 348 | Froncysyllte | 606 | |
| 349 | Penley | 606 | |
| 350 | Trefriw | 605 | |
| 351 | Dwyran | 603 | |
| 352 | Llanon | 598 | |
| 353 | Ystrad Aeron | 596 | |
| 354 | Penysarn | 595 | |
| 355 | Lamphey | 593 | |
| 356 | Abergwili | 589 | |
| 357 | Llanfechell | 589 | |
| 358 | Crundale | 584 | |
| 359 | Meidrim | 582 | |
| 360 | Llandinam | 576 | |
| 361 | Rhosesmor | 575 | |
| 362 | Newbridge-on-Wye | 566 | |
| 363 | Pentraeth | 557 | |
| 364 | St Donat's | 555 | |
| 365 | Llandogo | 547 | |
| 366 | Cynwyd | 542 | |
| 367 | Heol-y-Cyw | 538 | |
| 368 | Coelbren | 537 | |
| 369 | Rhydymwyn | 537 | |
| 370 | Mynytho | 536 | |
| 371 | Ffairfach | 534 | |
| 372 | Llwyngwril | 526 | |
| 373 | Morfa Bychan | 526 | |
| 374 | Nantgaredig | 524 | |
| 375 | Penrhiw-llan | 521 | |
| 376 | Llandissilio | 513 | |
| 377 | Henfynyw | 512 | |
| 378 | Llanrhidian | 512 | |
| 379 | Llanellen | 506 | |
| 380 | Llanarth | 503 | |
| 381 | Spittal | 494 | |
| 382 | Bronllys | 491 | |
| 383 | Cwrt Y Gollen | 487 | |
| 384 | St Ishmael's | 478 | |
| 385 | Corwen | 477 | |
| 386 | South Cornelly | 471 | |
| 387 | Penparc | 470 | |
| 388 | Roch | 463 | |
| 389 | Dolgarrog | 446 | |
| 390 | Llangybi | 444 | |
| 391 | Reynoldston | 439 | |
| 392 | Hundleton | 435 | |
| 393 | Blaenau | 425 | |
| 394 | Llansteffan | 424 | |
| 395 | Arddleen | 418 | |
| 396 | St Nicholas | 417 | |
| 397 | Catbrook | 412 | |
| 398 | Llanrhaeadr-ym-Mochnant | 408 | |
| 399 | Bryngwran | 405 | |
| 400 | Bonvilston | 392 | |
| 401 | Hengell Uchaf Estate | 388 | |
| 402 | Llanbedr | 385 | |
| 403 | Llangristiolus | 384 | |
| 404 | Llandevaud | 376 | |
| 405 | Norton | 375 | |
| 406 | Llangors | 371 | |
| 407 | The Narth | 369 | |
| 408 | Pontneddfechan | 366 | |
| 409 | Llanmadoc | 365 | |
| 410 | Pen-twyn | 358 | |
| 411 | Peniel | 358 | |
| 412 | Caergeiliog | 355 | |
| 413 | Tavernspite | 349 | |
| 414 | Talacre | 347 | |
| 415 | Pendine | 346 | |
| 416 | Waterston | 335 | |
| 417 | Crossgates | 327 | |
| 418 | Keeston | 324 | |
| 419 | Sudbrook | 322 | |
| 420 | Clarbeston Road | 318 | |
| 421 | Meifod | 317 | |
| 422 | Betws-yn-Rhos | 312 | |
| 423 | Llanbedr-Dyffryn-Clwyd | 306 | |
| 424 | Pentre Maelor | 305 | |
| 425 | Crymlyn Burrows | 303 | |
| 426 | Gwynfryn | 303 | |
| 427 | Clawdd Poncen | 300 | |
| 428 | Mynyddygarreg | 299 | |
| 429 | Cross Inn | 292 | |
| 430 | Cerrigydrudion | 289 | |
| 431 | Bull Bay | 287 | |
| 432 | Llanwrda | 287 | |
| 433 | Berriew | 283 | |
| 434 | St Fagans | 282 | |
| 435 | Llanyre | 279 | |
| 436 | Rhossili | 278 | |
| 437 | Capel Bangor | 256 | |
| 438 | Betws-Y-Coed | 255 | |
| 439 | Malltraeth | 255 | |
| 440 | Freshwater East | 250 | |
| 441 | Pentre-cwrt | 247 | |
| 442 | Sennybridge | 230 | |
| 443 | Port Eynon | 226 | |
| 444 | Talybont-on-Usk | 219 | |
| 445 | Ynysmaerdy | 205 | |
| 446 | Blaenannerch | 131 |