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Rome is the capital of Italy and the country's largest and most populated city and comune, with over 2.7 million residents in 1,285.3 km2 (496.3 sq mi). The city is located in the central-western portion of the Italian Peninsula, on the Tiber River within the Lazio region of Italy.
Rome constitutes one of Italy's 8,101 communes, and is the largest both in terms of land area and population. It is governed by a mayor, currently Gianni Alemanno, and a city council. The seat of the commune is the Palazzo Senatorio on the Capitoline Hill.