The population of Keihanshin Metropolitan Area is 18,643,915 (2000 census), and is considered one of Three Major Metropolitan Areas and one of Seven Greater Urban Areas as well as one of the top ten metropolitan areas in the world (as ranked by population).
京阪神大都市圏は、人口が1864万3915人（2000年国勢調査）を抱え、三大都市圏あるいは七大都市圏の1つとされる一方、世界で十指に入る大都市圏でもある（世界の都市圏人口の順位）。