San Marino, officially the Republic of San Marino, also known as the Most Serene Republic of San Marino, is a small state in Southern Europe, completely enclaved by Italy. Located on the northeastern side of the Apennine Mountains, San Marino covers a land area of just over 61 km2 (24 sq mi), and has a population of 33,562. Its capital is the City of San Marino and its largest settlement is Dogana. The capital is set at the highest point of the country on a steep mountain. San Marino's official language is Italian, although Romagnol is the historical language and still in existence in a non-official capacity.