Italy Capital City Population 2024. It is the third most. Rome is italy's capital and home to 2.8 million people in 1,285 square kilometers (496 square miles), which makes it the 4th most populous city in the european union within.

Rome is italy’s capital and home to 2.8 million people in 1,285 square kilometers (496 square miles), which makes it the 4th most populous city in the european union within. Population pyramid, age structure, sex ratio (males to females), life expectancy, dependency ratio of italy.