Mexico is a federal republic in Central America.
In the film, many refugee camps from the USA are set up here due to many American refugees fleeing south. The President of USA also has to forgive all Latin American deaths in order to let the people of USA into their borders
Mexico City Edit
Lucy, Peter, Raymond and many others flee to the embassy here. Most of the refugees come here and it even snows here. Many helicopters from Mexico City travel to New York to rescue the survivors that Jack hall found during his search.