| Locality | Postal Code |
|---|---|
| Postal/ZIP Codes in San Isidro, Acahay | 090209 |
| Postal/ZIP Codes in San Ramon, Acahay | 090201, 090207 |
| Postal/ZIP Codes in Santa Lucia, Acahay | 090201 |
| Postal/ZIP Codes in Tape Guasu, Acahay | 090203 |
| Postal/ZIP Codes in Tapytangua, Acahay | 090207 |
| Postal/ZIP Codes in Valois Rivarola, Acahay | 090202 |
| Postal/ZIP Codes in Yeguariso, Acahay | 090202 |
| Postal/ZIP Codes in Yvyraity, Acahay | 090206 |
| Postal/ZIP Codes in Zanjita, Acahay | 090205 |