Postal codes in Mexico are issued by SEPOMEX (Servicio Postal Mexicano) (Mexican Postal Service). They are of five digits and modelled on the US zip code system. The first 2 digits identify a state (or part thereof); and assignments are done alphabetically by state name, except for codes in the 0xxxx-1xxxx range which identify the delegaciones (boroughs) of Mexico City.
00-16 Distrito Federal | 20 Aguascalientes | 21-22 Baja California | 23 Baja California Sur |
24 Campeche | 29-30 Chiapas | 31-33 Chihuahua | 25-27 Coahuila |
28 Colima | 34-35 Durango | 36-38 Guanajuato | 39-41 Guerrero |
42-43 Hidalgo | 44-49 Jalisco | 50-57 México | 58-61 Michoacán |
62 Morelos | 63 Nayarit | 64-67 Nuevo León | 68-71 Oaxaca |
72-75 Puebla | 76 Querétaro | 77 Quintana Roo | 78-79 San Luis Potosí |
80-82 Sinaloa | 83-85 Sonora | 86 Tabasco | 87-89 Tamaulipas |
90 Tlaxcala | 91-96 Veracruz | 97 Yucatán | 98-99 Zacatecas |