thumb|alt=Map of Spain with Biscay highlighted|Map of Spain with Biscay highlighted

thumb|alt=Map of the province of Biscay with its municipalities|Map of the municipalities in the province of Biscay

Biscay is a province in the autonomous community of the Basque Country, Spain, that is divided into 113 municipalities. and the second smallest by land area, spanning .

!scope="col"| Population<br />(2011 census)

!scope="col"| Population change

!scope="col" data-sort-type="number" | Land area (km²)

!scope="col" data-sort-type="number" | Population density<br />(2023)

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!scope="row" align="center"|Abadiño

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!scope="row" align="center"|Abanto y Ciérvana-Abanto Zierbena

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!scope="row" align="center"|Ajangiz

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!scope="row" align="center"|Alonsotegi

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!scope="row" align="center"|Amorebieta-Etxano

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!scope="row" align="center"|Amoroto

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!scope="row" align="center"|Arakaldo

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!scope="row" align="center"|Arantzazu

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!scope="row" align="center"|Areatza

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!scope="row" align="center"|Arrankudiaga

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!scope="row" align="center"|Arratzu

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!scope="row" align="center"|Arrieta

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!scope="row" align="center"|Arrigorriaga

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!scope="row" align="center"|Artea

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!scope="row" align="center"|Artzentales

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!scope="row" align="center"|Atxondo

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!scope="row" align="center"|Aulesti

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!scope="row" align="center"|Bakio

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!scope="row" align="center"|Balmaseda

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!scope="row" align="center"|Barakaldo

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!scope="row" align="center"|Barrika

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!scope="row" align="center"|Basauri

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!scope="row" align="center"|Bedia

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!scope="row" align="center"|Berango

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!scope="row" align="center"|Bermeo

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!scope="row" align="center"|Berriatua

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!scope="row" align="center"|Berriz

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!scope="row" align="left" style="background:#CCF;"|Bilbao

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!scope="row" align="center"|Busturia

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!scope="row" align="center"|Derio

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!scope="row" align="center"|Dima

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!scope="row" align="center"|Durango

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!scope="row" align="center"|Ea

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!scope="row" align="center"|Elantxobe

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!scope="row" align="center"|Elorrio

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!scope="row" align="center"|Erandio

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!scope="row" align="center"|Ereño

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!scope="row" align="center"|Ermua

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!scope="row" align="center"|Errigoiti

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!scope="row" align="center"|Etxebarri

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!scope="row" align="center"|Etxebarria

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!scope="row" align="center"|Forua

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!scope="row" align="center"|Fruiz

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!scope="row" align="center"|Galdakao

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!scope="row" align="center"|Galdames

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!scope="row" align="center"|Gamiz-Fika

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!scope="row" align="center"|Garai

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!scope="row" align="center"|Gatika

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!scope="row" align="center"|Gautegiz Arteaga

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!scope="row" align="center"|Gernika-Lumo

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!scope="row" align="center"|Getxo

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!scope="row" align="center"|Gizaburuaga

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!scope="row" align="center"|Gordexola

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!scope="row" align="center"|Gorliz

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!scope="row" align="center"|Güeñes

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!scope="row" align="center"|Ibarrangelu

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!scope="row" align="center"|Igorre

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!scope="row" align="center"|Ispaster

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!scope="row" align="center"|Iurreta

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!scope="row" align="center"|Izurtza

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!scope="row" align="center"|Karrantza Harana/Valle de Carranza

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!scope="row" align="center"|Kortezubi

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!scope="row" align="center"|Lanestosa

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!scope="row" align="center"|Larrabetzu

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!scope="row" align="center"|Laukiz

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!scope="row" align="center"|Leioa

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!scope="row" align="center"|Lekeitio

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!scope="row" align="center"|Lemoa

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!scope="row" align="center"|Lemoiz

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!scope="row" align="center"|Lezama

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!scope="row" align="center"|Loiu

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!scope="row" align="center"|Mallabia

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!scope="row" align="center"|Mañaria

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!scope="row" align="center"|Markina-Xemein

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!scope="row" align="center"|Maruri-Jatabe

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!scope="row" align="center"|Mendata

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!scope="row" align="center"|Mendexa

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!scope="row" align="center"|Meñaka

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!scope="row" align="center"|Morga

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!scope="row" align="center"|Mundaka

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!scope="row" align="center"|Mungia

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!scope="row" align="center"|Munitibar-Arbatzegi Gerrikaitz

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!scope="row" align="center"|Murueta

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!scope="row" align="center"|Muskiz

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!scope="row" align="center"|Muxika

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!scope="row" align="center"|Nabarniz

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!scope="row" align="center"|Ondarroa

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!scope="row" align="center"|Orozko

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!scope="row" align="center"|Ortuella

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!scope="row" align="center"|Otxandio

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!scope="row" align="center"|Plentzia

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!scope="row" align="center"|Portugalete

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!scope="row" align="center"|Santurtzi

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!scope="row" align="center"|Sestao

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!scope="row" align="center"|Sondika

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!scope="row" align="center"|Sopelana

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!scope="row" align="center"|Sopuerta

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!scope="row" align="center"|Sukarrieta

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!scope="row" align="center"|Trucios-Turtzioz

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!scope="row" align="center"|Ubide

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!scope="row" align="center"|Ugao-Miraballes

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!scope="row" align="center"|Urduliz

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!scope="row" align="center"|Urduña/Orduña

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!scope="row" align="center"|Usansolo

| colspan=5 align="center"| No data

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!scope="row" align="center"|Valle de Trápaga-Trapagaran

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!scope="row" align="center"|Zaldibar

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!scope="row" align="center"|Zalla

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!scope="row" align="center"|Zamudio

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!scope="row" align="center"|Zaratamo

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!scope="row" align="center"|Zeanuri

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!scope="row" align="center"|Zeberio

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!scope="row" align="center"|Zierbena

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!scope="row" align="center"|Ziortza-Bolibar

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|- class="sortbottom" style="text-align:center;" style="background: #f2f2f2;"

!scope="row" align="center"| Biscay

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|align="right"|

|- class="sortbottom" style="text-align:center;" style="background: #f2f2f2;"

!scope="row" align="center"| Basque Country

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