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San Marino

Also Known As Republic of San Marino

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San Marino is a landlocked microstate in Southern Europe, entirely surrounded by Italy on the northeastern slopes of the Apennine Mountains. At just over 61 square kilometers it is the fifth-smallest country in the world. It claims a traditional founding date of AD 301, making it, by its own account, the oldest extant sovereign state. Its capital, the City of San Marino, sits atop Monte Titano.

Facts
Capital
City of San Marino 1
Population
34,172 1
2026 estimate, from San Marino's own Wikipedia infobox; the figure was 34,042 in 2025.
Population Estimate Year
2026 1
Area (sq km)
61.19 1
Independence or Founding Year
301 1
No colonial-independence date applies. 3 September 301 is the traditional founding date San Marino itself claims, as the world's oldest extant sovereign state and oldest constitutional republic; the date is traditional, not independently documented.
Cross-Tradition Connections

Associated With

Has Capital

On Continent

Europe, Continents
Sources
1. San Marino (Wikipedia)
Wikimedia FoundationIntroduction
Quote, Introduction
officially the Republic of San Marino, is a landlocked country in Southern Europe, completely surrounded by Italy
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1. San Marino (Wikipedia)
Wikimedia FoundationInfobox, capital
Quote, Infobox, capital
City of San Marino
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1. San Marino (Wikipedia)
Wikimedia FoundationInfobox, area
Quote, Infobox, area
61.19 km2
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1. San Marino (Wikipedia)
Wikimedia FoundationInfobox, 2026 estimate
Quote, Infobox, 2026 estimate
34,172
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1. San Marino (Wikipedia)
Wikimedia FoundationInfobox, independence
Quote, Infobox, independence
From the Roman Empire 3 September 301 (traditional)
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City of San Marino (Wikipedia)
Wikimedia FoundationAssociated With: City of San Marino, Infobox, Country
Quote, Associated With: City of San Marino, Infobox, Country
San Marino
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City of San Marino (Wikipedia)
Wikimedia FoundationHas Capital: City of San Marino, Lead section
Quote, Has Capital: City of San Marino, Lead section
is the capital city of the Republic of San Marino
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