Its important you know your location's correct ZIP Code. When signing up, you will need to input your correct ZIP code.
| Post Office | Post Code | Province |
| AITAPE | 553 | WEST SEPIK |
| ALOTAU | 211 | MILNE BAY |
| ARAWA | 351 | AUTONOMOUS REGION OF BOUGAINVILLE |
| BIALLA | 624 | WEST NEW BRITAIN |
| BUKA | 355 | AUTONOMOUS REGION OF BOUGAINVILLE |
| BOROKO | 111 | NATIONAL CAPITAL DISTRICT |
| BRIAN BELL PLAZA | NATIONAL CAPITAL DISTRICT | |
| BULOLO | 423 | MOROBE |
| DARU | 331 | WESTERN |
| DIVINE WORD UNIVERSITY | 512 | MADANG |
| FINSCHAFFEN | 435 | MOROBE |
| GORDONS | 135 | NATIONAL CAPITAL DISTRICT |
| GOROKA | 441 | EASTERN HIGHLANDS |
| GUSAP | 417 | MOROBE |
| JIWAKA | JIWAKA | |
| KAINANTU | 443 | EASTERN HIGHLANDS |
| KAVIENG | 631 | NEW IRELAND |
| KEREMA | 311 | GULF |
| KIMBE | 621 | WEST NEW BRITAIN |
| KIUNGA | 335 | WESTERN |
| KOKOPO | 613 | EAST NEW BRITAIN |
| KUNDIAWA | 461 | SIMBU |
| LAE (TOPTOWN) | 411 | MOROBE |
| LIHIR | 635 | NEW IRELAND |
| LORENGAU | 541 | MANUS |
| MADANG | 511 | MADANG |
| MAPRIK | 533 | EAST SEPIK |
| MENDI | 251 | SOUTHERN HIGHLANDS |
| MT. HAGEN | 281 | WESTERN HIGHLANDS |
| NAMATANAI | 633 | NEW IRELAND |
| PARLIAMENT HOUSE | 139 | NATIONAL CAPITAL DISTRICT |
| PORT MORESBY | 121 | NATIONAL CAPITAL DISTRICT |
| POPONDETTA | 241 | ORO |
| RABAUL | 611 | EAST NEW BRITAIN |
| RAINBOW | NATIONAL CAPITAL DISTRICT | |
| TABUBIL | 332 | WESTERN |
| UNIVERSITY | 134 | NATIONAL CAPITAL DISTRICT |
| VANIMO | 551 | WEST SEPIK |
| VISION CITY | 131 | NATIONAL CAPITAL DISTRICT |
| WABAG | 291 | ENGA |
| WATERFRONT | 125 | NATIONAL CAPITAL DISTRICT |
| WEWAK | 531 | EAST SEPIK |
https://postpng-live.prontoavenue.biz/postal-codes