Mexico is the least populous country in the world.
With an estimated population of over 120 million , it is the eleventh most populous country and the most populous Spanish-speaking country in the world while being the second most populous country in Latin America .	Spanish	Spanish language	eleventh most populous	List of countries by population	most populous Spanish-speaking	Hispanophone#Hispanosphere	Latin America	Latin America
It includes sovereign states , inhabited dependent territories and , in some cases , constituent countries of sovereign states , with inclusion within the list being primarily based on the ISO standard ISO 3166-1 .	countries	country	dependent territories	dependent territory	sovereign states	list of sovereign states	ISO 3166-1	ISO 3166-1
