Mexico is divided into 31 states (estados) and 1 Federal District (Distrito Federal), which contains the capital, Mexico City.
States and their capital cities:
... 45 to 64, and 11.8% who are 65 years of age or older. The median age is 36 years. For every 100 females there are 96.3 males. For every 100 females age 18 and over, ...