Administrative divisions of Spain
Spain is divided into 52 first-level administrative divisions:
Largest cities in Spain
| # | City | Population |
|---|---|---|
| 1 | MadridCapital | 5,567,000 |
| 2 | Barcelona | 4,920,000 |
| 3 | Seville | 1,212,045 |
| 4 | Bilbao | 875,552 |
| 5 | Valencia | 808,000 |
| 6 | Zaragoza | 649,404 |
| 7 | Málaga | 550,058 |
| 8 | Murcia | 406,807 |
| 9 | Granada | 388,290 |
| 10 | Vigo | 378,952 |
Madrid is the largest urban area in Spain with about 5,567,000 people.
Terrain, rivers & lakes
Highest terrain in Spain: ≈ 3,668 m — read from the global elevation model, so summit heights are approximate. The physical map paints elevation bands from green lowlands to brown highlands.
🌊 Rivers
- Mio
- Segre
- Minho
- Ebro
- Tajo
- Tejo
- Duero
- Guadiana
- Zncara
- Guadalquivir
- Esla
- Garonne
🏞️ Lakes
- Lake
- Embalse de Entrepeas
- Embalse de García de Sola
- Embalse de Orellana
- Embalse de Cala
- Embalse de Buendía
Ethnic groups in Spain
Spanish 84.8%, Moroccan 1.7%, Romanian 1.2%, other 12.3% (2021 est.)
Regionally, Spanish is the most common ethnic group across most of the 52 divisions.
Source: CIA World Factbook (2021 est.) · regional dominance compiled by Glostats from censuses and surveys
Religions in Spain
Roman Catholic 58.2%, atheist 16.2%, agnostic 10.8%, other 2.7%, non-believer 10.5%, unspecified 1.7% (2021 est.)
Regionally, Roman Catholic is the most common religious group across most of the 52 divisions, while Muslim predominates in 1 division (Melilla).
Source: CIA World Factbook (2021 est.) · regional dominance compiled by Glostats from censuses and surveys
Languages in Spain
Castilian Spanish (official) 74%, Catalan (official in Catalonia, the Balearic Islands, and the Valencian Community) 17%, Galician (official in Galicia) 7%, Basque (official in the Basque Country and Navarre) 2%, Aranese (official in part of Catalonia) <5,000 speakers
Regionally, Castilian Spanish is the most common language group across most of the 52 divisions, while Galician predominates in 3 divisions (Lugo, Orense, La Coruña); Catalan predominates in 2 divisions (Lérida, Gerona).
Source: CIA World Factbook · regional dominance compiled by Glostats from censuses and surveys
Explore more
Sources: boundaries, cities, rivers and lakes from Natural Earth (public domain, 1:10m); elevation from the AWS Open Data terrain tiles (SRTM/GMTED); ethnic, religious and language shares from the CIA World Factbook; regional dominance compiled by Glostats from national censuses and surveys. Page generated 2026-10-19. More about our data.