Iberian Peninsula
3 countries + 1 territory
Spain, Portugal, Andorra (sovereign), plus British Gibraltar. ~600,000 km², ~60 million people. A geographic and historical region, not a political union.
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Quick answer
There are 3 sovereign Iberian countries:
British Gibraltar is on the peninsula geographically but is a UK overseas territory, not a sovereign country.
Membership
Two of the three are full EU and Schengen members; all three use the euro. Spain and Portugal joined the EU together on 1 January 1986 and Schengen in 1995. Andorra is outside both but uses the euro under a 2011 monetary agreement with the EU.
Definition
The Iberian Peninsula is a landmass of about 600,000 km² at the south-western tip of Europe, separated from the rest of the continent by the Pyrenees mountains. It is shared by three sovereign countries — Spain, Portugal, and Andorra — plus the British Overseas Territory of Gibraltar. It is washed by the Atlantic to the west and the Mediterranean to the east, and lies just 14 km from Africa across the Strait of Gibraltar.
Sovereign countries
3
Spain · Portugal · Andorra
Total area
~600,000 km²
Bigger than France; ~2.5× the UK.
Population
~60 million
~48.6M Spain · 10.6M Portugal · 0.08M Andorra.
Frequently confused
These two terms are often used interchangeably but they mean different things. “Iberia” (or the Iberian Peninsula) is the geographic landmass in south-west Europe, separated from the rest of the continent by the Pyrenees. Spain is the largest country on it — about 85% of the area — but Portugal, Andorra, and British Gibraltar all share the peninsula.
Iberian Peninsula
3 countries + 1 territory
Spain, Portugal, Andorra (sovereign), plus British Gibraltar. ~600,000 km², ~60 million people. A geographic and historical region, not a political union.
Spain alone
1 country
~506,000 km², ~48.6 million people — the largest Iberian country and one of the EU’s big four. Includes the Balearic Islands, the Canary Islands, and the North African enclaves of Ceuta and Melilla.
Is Portugal in Spain?
No — Portugal is a separate sovereign country, independent since 1143, with its own language and government. The two countries share the peninsula, not a state.
Is Gibraltar in Spain?
No — Gibraltar is a British Overseas Territory, ceded to Britain in 1713. Spain disputes the sovereignty; Gibraltarians have voted overwhelmingly to stay British.
Reference
The three sovereign Iberian countries with capital, language, currency, population, area, GDP per capita, Human Development Index, and EU/Schengen/NATO accession years.
| Flag | Country | Capital | Language | Currency | Population (M) | Area (km²) | GDP / capita (USD) | HDI | EU since | NATO since |
|---|---|---|---|---|---|---|---|---|---|---|
| 🇪🇸 | Spain | Madrid | Spanish (Castilian) | EUR | 48.6 | 505,990 | $36,000 | 0.918 | 1986 | 1982 |
| 🇵🇹 | Portugal | Lisbon | Portuguese | EUR | 10.6 | 92,212 | $27,500 | 0.874 | 1986 | 1949 |
| 🇦🇩 | Andorra | Andorra la Vella | Catalan | EUR | 0.08 | 468 | $42,000 | 0.858 | — | — |
Andorra is not an EU, Schengen, or NATO member but uses the euro under a 2011 monetary agreement. Spain and Portugal joined the EU on 1 January 1986. Population estimates 2025/2026; GDP per capita per IMF (2024); HDI per UN HDR 2023/24.
Total population
59.3 M
~59 million across the three countries.
Total area
598,670 km²
~599k km² combined — a little over twice the size of the UK.
Combined GDP
$2.03T
~$2.0 trillion nominal (IMF 2024).
Country profiles
A traveller’s read on each — what makes it distinct, what it’s known for, and how it fits alongside the others.
Madrid · 48.6 M · 505,990 km²
The largest Iberian country by area, population, and economy — and one of Europe’s most diverse, with five co-official languages: Spanish (Castilian), Catalan, Galician, Basque, and Aranese. Spain runs from the green Atlantic north (Galicia, Asturias, the Basque Country) to the dry Mediterranean south (Andalusia) and includes the Balearic Islands and the Canary Islands. Madrid is the capital; Barcelona, Valencia, Seville, and Bilbao are the other major cities. Constitutional monarchy under King Felipe VI; democratic since the 1978 constitution.
Lisbon · 10.6 M · 92,212 km²
The westernmost country on continental Europe — a long Atlantic coastline running from the Minho river in the north to the Algarve in the south, plus the autonomous archipelagos of Madeira and the Azores. Portuguese is the sixth-most-spoken language in the world (driven by Brazil, Angola, Mozambique). Portugal is one of the oldest nation-states in Europe (independent kingdom since 1143, current borders since 1297), a NATO founding member (1949), and joined the EU and Schengen alongside Spain in 1986/1995. Lisbon and Porto are the major cities.
Andorra la Vella · 80k · 468 km²
A tiny landlocked Pyrenees microstate (468 km², about 80,000 people) wedged between Spain and France. Andorra is a co-principality — uniquely in the world it has two heads of state: the Bishop of Urgell (in Spain) and the President of France. Catalan is the only official language. It uses the euro under a monetary agreement with the EU but is not an EU, Schengen, or NATO member, and has no airport — visitors arrive by road from Spain or France. Famed for ski resorts (Grandvalira, Vallnord) and tax-light shopping in the capital.
Iberian curiosities
Two political oddities of the Iberian Peninsula that travellers and quiz-show contestants ask about more than almost anything else on this map.
Andorra — a co-principality
Andorra has two heads of state at once: the Bishop of Urgell (a Catholic bishop in northern Spain) and the President of France. The arrangement dates to 1278 and is unique in the world. Day-to-day government is run by an elected General Council and a head of government; the co-princes are largely ceremonial.
Gibraltar — British, not Spanish
Gibraltar is a British Overseas Territory at the southern tip of the peninsula, ceded to Britain by the 1713 Treaty of Utrecht. Spain disputes the sovereignty; Gibraltarians voted 99% to stay British in 2002. About 34,000 people live on 6.7 km² of land, with the famous Rock of Gibraltar at its centre.
Spain also has two North African enclaves — Ceuta and Melilla — which are part of Spain (and therefore the EU and Schengen) but sit on the Moroccan coast across the Strait of Gibraltar.
History
From the Reconquista to EU membership in 1986 — how Spain, Portugal and Andorra became the three modern Iberian countries.
The name Iberia comes from the Iberi, the ancient pre-Roman peoples of the peninsula, recorded by Greek geographers more than 2,500 years ago. The Romans named the province Hispania — root of the modern name Spain.
The Kingdom of Portugal is recognised as independent from León. Portugal is one of the oldest sovereign nation-states in Europe and has kept essentially the same borders since 1297.
A treaty between the Count of Foix and the Bishop of Urgell creates the co-principality of Andorra — the unusual shared-sovereignty arrangement that survives, with the President of France having since replaced the Count of Foix as co-prince.
The marriage of Isabella of Castile and Ferdinand of Aragon unites the two largest Iberian crowns, laying the political foundation of modern Spain.
The fall of Granada ends nearly eight centuries of Moorish rule in Iberia. The same year, Columbus reaches the Americas under Spanish patronage — opening the Spanish empire.
Spain and Portugal divide the New World between them along a meridian in the Atlantic — the only time in history two nation-states formally split the planet between them. Portugal’s share included what is now Brazil.
Portugal and Spain are united under a single monarch (the Spanish Habsburgs) for 60 years before Portugal restores its independence in 1640 — the only period since 1143 when Portugal was politically merged with Spain.
Portugal is a NATO founding member (1949). Spain joins NATO in 1982 after the transition from the Franco dictatorship; Andorra has never joined.
Both Spain and Portugal join the European Economic Community (now the EU) on 1 January 1986. They join Schengen in 1995 and adopt the euro in 1999/2002. Andorra remains outside the EU but uses the euro.
Head to head
Iberia’s two largest countries share the same peninsula and joined the EU on the same day in 1986, but they are very different in size, language, history, and pace. The headline contrasts:
| 🇪🇸 Spain | 🇵🇹 Portugal | |
|---|---|---|
| Capital | Madrid | Lisbon |
| Area | 505,990 km² | 92,212 km² (~⅙ of Spain) |
| Population | ~48.6 M | ~10.6 M |
| Nominal GDP | ~$1.74 T | ~$291 B (~⅙ of Spain) |
| Language | Spanish + 4 co-official | Portuguese only |
| Government | Constitutional monarchy | Republic (semi-presidential) |
| Coastline | Atlantic + Mediterranean | Atlantic only |
| EU since | 1986 | 1986 |
| NATO since | 1982 | 1949 (founding) |
| Independent since | 1469 (Catholic Monarchs) | 1143 |
Where they diverge
Spain is decentralised across 17 autonomous communities with strong regional identities (Catalonia, Basque Country, Galicia). Portugal is a centralised unitary state with a single national identity built around Portuguese.
Where they overlap
Same peninsula. Both Atlantic-facing. Both EU + Schengen members since 1986/1995. Both eurozone since 1999/2002. Both Romance languages (Iberian branch). Both have shared a single state once (Iberian Union, 1580–1640).
For travellers
Portugal tends to be cheaper, slower-paced, and more rain-fed Atlantic green. Spain has bigger cities, more cultural variety, more Mediterranean coastline, and higher peaks (Mulhacén, 3,479 m).
Geography & climate
The Iberian Peninsula has more geographic variety than its size suggests: snow-capped mountains, three big rivers, two coastlines, and three distinct climate zones in less than 600,000 km².
Borders & coastline
~3,300 km of coast
Atlantic to the west and north (Portugal, Galicia, the Cantabrian coast); Mediterranean to the east and south. The Pyrenees form a 491 km mountain wall along the French border, broken only by Andorra. The Strait of Gibraltar separates Spain from Morocco by just 14 km.
Mountains
Mulhacén — 3,479 m
The peninsula’s high point sits in Spain’s Sierra Nevada, in southern Andalusia. Other major ranges: the Pyrenees (north), the Cantabrian Mountains (north-west), the Sistema Central (running through Madrid), and the Sierra de Estrela in central Portugal.
Rivers
Tagus · Douro · Ebro · Guadalquivir
The Tagus (1,038 km) is the longest, flowing from central Spain to Lisbon. The Douro runs from Spain to Porto and gives Port wine its name. The Ebro runs east to the Mediterranean; the Guadalquivir through Andalusia.
Mediterranean climate
Hot, dry summers
Dominates eastern Spain, the Balearics, southern Portugal, and the meseta interior. Summers are reliably hot (often 35°C+); winters mild on the coast.
Atlantic climate
Mild and wet
Covers Galicia, Asturias, the Basque Country, and most of Portugal’s coast. Cooler summers, wetter winters, and noticeably greener landscapes than the rest of Iberia.
Continental / alpine climate
Hot summers, cold winters
Madrid and the central plateau swing from -5°C in January to 35°C+ in July. Andorra and the Pyrenees see sustained snow each winter — Andorra runs a major ski industry.
Shared peninsula, different flags
Unlike the Nordic countries — which all share the off-centred Nordic Cross pattern — the three Iberian flags share no common design. Each one carries its own dense layer of national symbolism.
Spain
🇪🇸
Bandera de España
Three horizontal bands (red-yellow-red) with the national coat of arms — pillars of Hercules, the crowns of the historical kingdoms (Castile, León, Aragon, Navarre, Granada). Adopted 1981.
Portugal
🇵🇹
Bandeira de Portugal
Vertical green and red, with the national coat of arms over an armillary sphere — a navigational instrument symbolising the Age of Discovery. Adopted 1911 after the establishment of the Republic.
Andorra
🇦🇩
Bandera d’Andorra
Vertical blue, yellow, red — drawn from the colours of France (blue, red) and Catalonia (yellow, red), reflecting Andorra’s co-principality. Coat of arms in the centre. Adopted 1866.
Linguistics
Most Iberian languages are Romance languages descended from Latin — but Spain is unusual in Europe for having a non-Indo-European language (Basque) co-official alongside its Romance neighbours.
Spanish (Castilian)
Spain
The dominant language across most of Spain and the world’s second-most-spoken native language (~500 million speakers). Plus four co-official regional languages: Catalan, Galician, Basque, Aranese.
Portuguese
Portugal
Sole official language of Portugal. Sixth-most-spoken language in the world by native speakers, driven by Brazil, Angola, Mozambique, and the rest of the Lusophone world. Mutually intelligible with Spanish in writing, less so in speech.
Catalan
Andorra
The sole official language of Andorra. Also co-official in Catalonia, Valencia (as Valencian), and the Balearic Islands in Spain — making Catalan the third-most-spoken Iberian language by territory after Spanish and Portuguese.
Basque (Euskara) stands out as a language isolate — unrelated to any other surviving language family. It is co-official in the Basque Country and Navarre regions of Spain.
Three sovereign countries: Spain, Portugal, and Andorra. Spain and Portugal cover almost all of the peninsula; Andorra is a tiny microstate in the Pyrenees on the Spanish–French border. Gibraltar, on the southern tip, is a British Overseas Territory and not an independent country.
3 sovereign nations: Spain, Portugal, and Andorra. If you also count British Gibraltar (a UK overseas territory at the southern tip), the peninsula has political presence from four jurisdictions — but only three are sovereign states.
Yes. Andorra is a fully sovereign nation — a parliamentary co-principality, the smallest country on the Iberian Peninsula at 468 km², with about 80,000 people. It uses the euro under a monetary agreement with the EU but is not an EU, Schengen, or NATO member.
No. Gibraltar is a British Overseas Territory, ceded to Britain by the 1713 Treaty of Utrecht. It is on the Iberian Peninsula geographically but is governed from London and is not part of Spain. Spain disputes the sovereignty; the most recent referendums in Gibraltar (2002) returned 99% in favour of staying British.
No. Portugal is a separate sovereign country with its own language (Portuguese, distinct from Spanish), currency arrangement (euro since 1999/2002), and political institutions. Portugal has been independent since 1143 and has had essentially the same borders since 1297 — making it one of the oldest continuous nation-states in Europe.
"Iberia" or "the Iberian Peninsula" is the geographic landmass in south-west Europe, separated from the rest of the continent by the Pyrenees. Spain is the largest country on it, covering about 85% of the peninsula. Portugal occupies the western strip; Andorra sits high in the Pyrenees; British Gibraltar is at the southern tip.
Spain is roughly six times the size of Portugal by both area (505,990 vs 92,212 km²) and economy. Spain is a constitutional monarchy with five co-official languages and 17 autonomous communities; Portugal is a unitary semi-presidential republic with Portuguese as its sole official language. Both joined the EU on the same day in 1986 and use the euro. Spain has Atlantic and Mediterranean coastlines; Portugal is Atlantic-only.
The Iberian Peninsula sits at the south-western tip of Europe, between the Atlantic Ocean to the west and the Mediterranean Sea to the east. It is bordered by the Pyrenees mountains in the north (the natural border with France) and is separated from Africa by the 14 km Strait of Gibraltar in the south.
Three main zones. <span class="font-bold">Mediterranean</span> in the east, south, and the Balearic Islands (hot dry summers, mild winters). <span class="font-bold">Atlantic / oceanic</span> in Galicia, Asturias, the Basque Country, and most of Portugal (mild and wet). <span class="font-bold">Continental</span> on the central plateau and Pyrenees (hot summers, cold winters; Andorra and the Pyrenees see sustained snow).
Mulhacén in Spain’s Sierra Nevada at 3,479 metres — the highest point on continental Spain and the entire peninsula. Higher peaks in the Pyrenees (Aneto at 3,404 m) sit on the French border. Andorra’s highest point is Coma Pedrosa at 2,942 m.
The four major rivers are the Tagus (1,038 km, Spain → Lisbon), the Douro (Spain → Porto), the Ebro (Spain → Mediterranean), and the Guadalquivir (Andalusia). Three of the four cross the Spanish-Portuguese border on their way to the Atlantic.
May–June and September–October are the sweet spots for most of Iberia: warm but not punishing, lower prices, fewer crowds. July and August are reliably hot and dry on the Mediterranean coast (often 35°C+) but very busy. Andorra is best in winter (skiing, December–April) or summer (hiking, June–September). Atlantic Portugal is mild year-round but driest May–September.
Spain by every measure — about 85% of the peninsula’s land area (505,990 km²), almost 50 million people, and an economy roughly six times the size of Portugal’s. Portugal is second; Andorra is a small fraction of one percent.
Yes — both joined the European Economic Community (now EU) on 1 January 1986 and joined the Schengen Area in 1995. Both adopted the euro for cashless transactions in 1999 and physical notes/coins in 2002.
No. Andorra is not in the European Union and not in the Schengen Area. It does use the euro under a monetary agreement with the EU, and the Spanish and French borders are open in practice — but Andorra is a third country in formal terms. The EU and Andorra are negotiating a closer association agreement (still in progress in 2026).
Two of the three. Portugal is a founding NATO member (1949). Spain joined NATO in 1982 after the transition from the Franco dictatorship. Andorra has never joined NATO and has only had its own armed forces since the 1990s.
Yes — Spain, Portugal, and Andorra all use the euro. Spain and Portugal as full eurozone members since 1999/2002; Andorra under a 2011 monetary agreement with the EU which lets it issue euro coins despite not being an EU member.
Spanish (Castilian), Portuguese, and Catalan are the dominant Iberian Romance languages. Spain alone has five co-official languages: Spanish, Catalan, Galician, Basque (a non-Indo-European language unrelated to its neighbours), and Aranese. Portuguese is the only official language of Portugal. Catalan is the sole official language of Andorra.
A nearly eight-century process (711–1492) by which Christian kingdoms gradually reclaimed the Iberian Peninsula from Moorish (Muslim) rule. It ended with the fall of Granada to the Catholic Monarchs of Spain in 1492 — the same year Columbus reached the Americas under Spanish patronage.
A 1494 agreement between Spain and Portugal — brokered by Pope Alexander VI — that divided the New World along a meridian in the Atlantic. Spain got everything west of the line; Portugal got everything east, which is why Portugal ended up colonising Brazil while Spanish became the dominant language of Latin America.
A 1580–1640 personal union between Spain and Portugal under a single monarch (the Spanish Habsburgs). Portugal restored its independence in 1640. It is the only period since 1143 when Portugal was politically merged with Spain.
Andorra was historically known for tax-light shopping and banking but has since aligned with EU and OECD tax-transparency standards. It introduced personal income tax in 2015 and has bilateral information-exchange agreements with the EU. Shopping prices remain modestly cheaper than France and Spain because of low VAT.
Andorra is uniquely a parliamentary co-principality with two heads of state: the Bishop of Urgell (a Catholic bishop in Spain) and the President of France. The arrangement dates to a 1278 treaty. The two co-princes are largely ceremonial; the elected General Council and head of government run day-to-day affairs.
Partially. All three are Iberian Romance languages with a shared Latin root. Spanish and Portuguese speakers can often understand each other in writing, less so in fast speech. Catalan sits between Spanish and French/Occitan and is generally more accessible to Spanish speakers than Portuguese to Spanish.
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Methodology
Last updated 7 May 2026. The country list follows the standard sovereign-state definition of the Iberian Peninsula: Spain, Portugal, and Andorra. British Gibraltar (a UK overseas territory) is mentioned but excluded from the count. EU, Schengen, NATO, and currency facts reflect official records. The map renders from the same world-map.svg used by the Visited Europe Map, cropped to an Iberia-only viewBox.
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