What is the capital of San Marino?
The City of San Marino clings to the western slopes of Monte Titano, the republic's highest point, at about 749 metres above sea level.
City of San Marino is the capital and seat of government of San Marino. San Marino itself has an estimated population of 34,109 (2025).
City of San Marino is not the largest city in San Marino. That is Serravalle, which makes San Marino one of the countries whose capital is not their biggest city.
City of San Marino at a glance
| City population | 4,130 (2026) |
|---|---|
| Country | πΈπ² San Marino |
| Founded | 301 |
| Largest city in San Marino | Serravalle |
| Time zone | UTC+01:00 (CET) |
| Currency | Euro (EUR) |
About City of San Marino
3 September 301 is the traditional foundation date of the republic.
It is the fifth-least-populated national capital in the world.
The city is one of the nine castelli, the municipalities into which San Marino is divided, and locals simply call it Citta, 'the city'.
City facts sourced from Wikipedia: City of San Marino.
Frequently asked questions
What is the capital of San Marino?
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Capitals of neighbouring countries
See the full profile of San Marino on its country page, or browse every capital city.
Capital and country data from open datasets; city and metropolitan populations are hand-curated per city and cited where they are shown. Populations of countries come from the World Bank (SP.POP.TOTL). Full sources and vintage on the data page. Last updated . Report a correction.