Major cities - population: 3.075 million SANAA (capital), 1.012 million Aden (2021)
Definition: This entry provides the population of the capital and up to six major cities defined as urban agglomerations with populations of at least 750,000 people. An urban agglomeration is defined as comprising the city or town proper and also the suburban fringe or thickly settled territory lying outside of, but adjacent to, the boundaries of the city. For smaller countries, lacking urban centers of 750,000 or more, only the population of the capital is presented.
Source: CIA World Factbook - This page was last updated on Saturday, September 18, 2021