| Locality | Post Code |
|---|---|
| Ahuatepec, Hueyapan | 73928 |
| Atmoloni, Hueyapan | 73923 |
| Barrio Alto, Hueyapan | 73924 |
| Buenavista, Hueyapan | 73923 |
| Colostitán, Hueyapan | 73924 |
| Coyotepec, Hueyapan | 73925 |
| Cuatro Caminos, Hueyapan | 73926 |
| Dos Ríos, Hueyapan | 73927 |
| Gardenias, Hueyapan | 73926 |
| Hueyapan, Hueyapan | 73920 |
| Hueyapan Centro, Hueyapan | 73920 |
| La Aurora, Hueyapan | 73926 |
| La Pagoda, Hueyapan | 73927 |
| Maloapan, Hueyapan | 73926 |
| Nanacacot, Hueyapan | 73924 |
| Nexpan, Hueyapan | 73928 |
| Paso Real, Hueyapan | 73926 |
| Talzintán, Hueyapan | 73927 |
| Tenamacoyan, Hueyapan | 73920 |
| Tepetitanapan, Hueyapan | 73928 |
| Tetelilla, Hueyapan | 73927 |