States
The 32 federal entities with every code you'll run into, and the postal codes that belong to each.
| State | CURP | INEGI | ISO 3166-2 | Postal codes |
|---|---|---|---|---|
| Aguascalientes | AS | 01 | MX-AGU | 20xxx |
| Baja California | BC | 02 | MX-BCN | 21xxx–22xxx |
| Baja California Sur | BS | 03 | MX-BCS | 23xxx |
| Campeche | CC | 04 | MX-CAM | 24xxx |
| Coahuila | CL | 05 | MX-COA | 25xxx–27xxx |
| Colima | CM | 06 | MX-COL | 28xxx |
| Chiapas | CS | 07 | MX-CHP | 29xxx–30xxx |
| Chihuahua | CH | 08 | MX-CHH | 31xxx–33xxx |
| Ciudad de México | DF | 09 | MX-CMX | 01xxx–16xxx |
| Durango | DG | 10 | MX-DUR | 34xxx–35xxx |
| Guanajuato | GT | 11 | MX-GUA | 36xxx–38xxx |
| Guerrero | GR | 12 | MX-GRO | 39xxx–41xxx |
| Hidalgo | HG | 13 | MX-HID | 42xxx–43xxx |
| Jalisco | JC | 14 | MX-JAL | 44xxx–49xxx |
| Estado de México | MC | 15 | MX-MEX | 50xxx–57xxx |
| Michoacán | MN | 16 | MX-MIC | 58xxx–61xxx |
| Morelos | MS | 17 | MX-MOR | 62xxx |
| Nayarit | NT | 18 | MX-NAY | 63xxx |
| Nuevo León | NL | 19 | MX-NLE | 64xxx–67xxx |
| Oaxaca | OC | 20 | MX-OAX | 68xxx–71xxx |
| Puebla | PL | 21 | MX-PUE | 72xxx–75xxx |
| Querétaro | QT | 22 | MX-QUE | 76xxx |
| Quintana Roo | QR | 23 | MX-ROO | 77xxx |
| San Luis Potosí | SP | 24 | MX-SLP | 78xxx–79xxx |
| Sinaloa | SL | 25 | MX-SIN | 80xxx–82xxx |
| Sonora | SR | 26 | MX-SON | 83xxx–85xxx |
| Tabasco | TC | 27 | MX-TAB | 86xxx |
| Tamaulipas | TS | 28 | MX-TAM | 87xxx–89xxx |
| Tlaxcala | TL | 29 | MX-TLA | 90xxx |
| Veracruz | VZ | 30 | MX-VER | 91xxx–96xxx |
| Yucatán | YN | 31 | MX-YUC | 97xxx |
| Zacatecas | ZS | 32 | MX-ZAC | 98xxx–99xxx |