!San Marino San Marino is a country, Region - Southern Europe, Capital - San Marino, Population in 2003 - 28,000, Population density - 452 per sq km, Surface area - 61 sq km, Currency - Italian lira. This little republic of Europe has maintained its independence since the 4th century; comprises a town (same name) and several villages occupying rocky and elevated sites on the eastern slopes of the Apennines; some agriculture and cattle-rearing are done; is under the friendly protection of Italy.