# Municipalities in Biscay province by population, 2025

All 113 values come from Instituto Nacional de Estadística for 2025, so the places are comparable.

- Indicator id: `population`
- Unit: persons
- Definition: Resident population. Spain and the EU: 1 January, with Spanish figures from the official municipal register (Padrón). United States: Census Bureau population estimates for 1 July. Other countries and the World: World Bank mid-year estimates, which count all residents regardless of legal status or citizenship.
- Source: Instituto Nacional de Estadística, Cifras oficiales de población de los municipios españoles: Revisión del Padrón municipal (tabla 29005) (https://www.ine.es/jaxiT3/Tabla.htm?t=29005)
- Retrieved: 2026-10-07
- Citation: Instituto Nacional de Estadística (INE). Cifras oficiales de población de los municipios españoles: Revisión del Padrón municipal (tabla 29005). https://www.ine.es/jaxiT3/Tabla.htm?t=29005. Retrieved 2026-10-07.
- Web page: https://invokely.ai/rankings/population/biscay-province-municipalities
- CSV: https://invokely.ai/download/rankings/population/biscay-province-municipalities.csv

| Rank | Place | persons |
|---:|---|---:|
| 1 | Bilbao | 351,124 |
| 2 | Barakaldo | 102,986 |
| 3 | Getxo | 75,752 |
| 4 | Santurtzi | 46,442 |
| 5 | Portugalete | 44,843 |
| 6 | Basauri | 40,274 |
| 7 | Leioa | 32,748 |
| 8 | Durango | 30,192 |
| 9 | Sestao | 28,512 |
| 10 | Galdakao | 24,776 |
| 11 | Erandio | 24,659 |
| 12 | Amorebieta-Etxano | 19,660 |
| 13 | Mungia | 18,129 |
| 14 | Gernika-Lumo | 17,129 |
| 15 | Bermeo | 17,038 |
| 16 | Ermua | 15,516 |
| 17 | Sopela | 15,048 |
| 18 | Etxebarri | 12,038 |
| 19 | Arrigorriaga | 11,939 |
| 20 | Valle de Trápaga-Trapagaran | 11,797 |
| 21 | Abanto y Ciérvana-Abanto Zierbena | 9,379 |
| 22 | Ortuella | 8,735 |
| 23 | Zalla | 8,334 |
| 24 | Berango | 8,242 |
| 25 | Ondarroa | 8,060 |
| 26 | Abadiño | 7,768 |
| 27 | Balmaseda | 7,718 |
| 28 | Muskiz | 7,465 |
| 29 | Derio | 7,294 |
| 30 | Elorrio | 7,277 |
| 31 | Lekeitio | 7,211 |
| 32 | Güeñes | 6,817 |
| 33 | Urduliz | 6,128 |
| 34 | Gorliz | 6,034 |
| 35 | Markina-Xemein | 5,089 |
| 36 | Sondika | 4,670 |
| 37 | Usansolo | 4,565 |
| 38 | Berriz | 4,533 |
| 39 | Plentzia | 4,407 |
| 40 | Igorre | 4,344 |
| 41 | Urduña/Orduña | 4,247 |
| 42 | Ugao-Miraballes | 4,213 |
| 43 | Iurreta | 3,897 |
| 44 | Lemoa | 3,614 |
| 45 | Zamudio | 3,442 |
| 46 | Zaldibar | 3,066 |
| 47 | Alonsotegi | 2,991 |
| 48 | Bakio | 2,857 |
| 49 | Sopuerta | 2,820 |
| 50 | Karrantza Harana/Valle de Carranza | 2,715 |
| 51 | Orozko | 2,666 |
| 52 | Lezama | 2,430 |
| 53 | Loiu | 2,364 |
| 54 | Larrabetzu | 2,039 |
| 55 | Mundaka | 1,816 |
| 56 | Gordexola | 1,720 |
| 57 | Busturia | 1,693 |
| 58 | Gatika | 1,633 |
| 59 | Zaratamo | 1,609 |
| 60 | Muxika | 1,546 |
| 61 | Dima | 1,531 |
| 62 | Barrika | 1,513 |
| 63 | Zierbena | 1,512 |
| 64 | Gamiz-Fika | 1,414 |
| 65 | Lemoiz | 1,347 |
| 66 | Atxondo | 1,342 |
| 67 | Otxandio | 1,322 |
| 68 | Areatza | 1,292 |
| 69 | Laukiz | 1,239 |
| 70 | Zeanuri | 1,234 |
| 71 | Berriatua | 1,224 |
| 72 | Maruri-Jatabe | 1,129 |
| 73 | Bedia | 1,111 |
| 74 | Mallabia | 1,106 |
| 75 | Zeberio | 1,087 |
| 76 | Arrankudiaga-Zollo | 1,018 |
| 77 | Forua | 928 |
| 78 | Gautegiz Arteaga | 866 |
| 79 | Galdames | 829 |
| 80 | Ea | 824 |
| 81 | Etxebarria | 791 |
| 82 | Meñaka | 789 |
| 83 | Artzentales | 754 |
| 84 | Artea | 743 |
| 85 | Ispaster | 721 |
| 86 | Ibarrangelu | 669 |
| 87 | Aulesti | 639 |
| 88 | Fruiz | 591 |
| 89 | Arrieta | 582 |
| 90 | Mañaria | 539 |
| 91 | Trucios-Turtzioz | 515 |
| 92 | Errigoiti | 499 |
| 93 | Munitibar-Arbatzegi Gerrikaitz | 467 |
| 94 | Ajangiz | 458 |
| 95 | Kortezubi | 447 |
| 96 | Mendexa | 426 |
| 97 | Arratzu | 417 |
| 98 | Morga | 416 |
| 99 | Arantzazu | 411 |
| 100 | Ziortza-Bolibar | 401 |
| 101 | Amoroto | 390 |
| 102 | Mendata | 382 |
| 103 | Sukarrieta | 362 |
| 104 | Garai | 332 |
| 105 | Elantxobe | 320 |
| 106 | Murueta | 311 |
| 107 | Ereño | 275 |
| 108 | Nabarniz | 264 |
| 109 | Lanestosa | 244 |
| 110 | Izurtza | 224 |
| 111 | Gizaburuaga | 196 |
| 112 | Ubide | 167 |
| 113 | Arakaldo | 156 |