| Locality | Post Code |
|---|---|
| Cantu, Doctor Coss | 66980 |
| Doctor Coss, Doctor Coss | 66950 |
| El Brasil, Doctor Coss | 66970 |
| Francisco I Madero, Doctor Coss | 66955 |
| Hacienda de Guadalupe, Doctor Coss | 66953 |
| La Ceja, Doctor Coss | 66964 |
| La Lajilla, Doctor Coss | 66960 |
| Norte, Doctor Coss | 66953 |
| Serafín, Doctor Coss | 66964 |