The De Agostini Atlas Calendar(in Italian) listed the area of Vatican City as 0.44 km2 (0.17 sq mi) in its 1930 edition[5] but corrected it to 0.49 km2 (0.19 sq mi) in its 1945–46 edition.[6] The figure of 0.44 km2 (0.17 sq mi) is still widely cited by many sources despite its inaccuracy. In 2018, there were 618 citizens regardless of residence, including 246 resident citizens.[7] In 2024, there were 882 residents regardless of citizenship.[7] The population density is calculated using the number of residents regardless of citizenship and the revised area of 0.49 km2 (0.19 sq mi).