The City of San Marino is the capital city of the Republic of San Marino on the Italian peninsula, near the Adriatic Sea. The city has a population of 4,493. It is on the western slopes of San Marino's highest point, Monte Titano.
Although the capital, most of the businesses are in Borgo Maggiore. It is the third largest city in the country, after Dogana and Borgo Maggiore. It borders the San Marino municipalities Acquaviva, Borgo Maggiore, Fiorentino, and Chiesanuova and the Italian municipality San Leo.