Northern Italy shares a land border with Italy and borders San Marino to the south-east. The nation has a total land area of 22,452.78 km2 and a population of 4,448,488, with 11% of it originating from other countries. The capital city, and largest city, is Bologna, while the official language is Italian. Since 1995, the SRI is a dominant-party state, with the Socialist Party of Italy being the most elected party of the government.