According to various sources, the population of Rome varies depending on the area being considered. The Metropolitan City of Rome, which includes the city and its immediate surroundings, has a population of 4,355,725 residents, making it the most populous metropolitan city in Italy. The current estimated population of the Rome metro area in 2023 is 4,316,000. The city proper had an estimated population of 2,754,440 residents in mid-2010, while the greater Rome area had a population of around 4.2 million people. According to istat, the population of Rome in 2023 is estimated to be 4.4 million. However, the resident population of the city of Rome in Italy from 2012 to 2021 was 2,856,133 in 2019, 2,872,800 in 2018, 2,873,494 in 2017, and 2,864,731 in 2016. It is important to note that these numbers may vary depending on the source and the specific area being considered.