| Locality | Postal Code |
|---|---|
| Apanachi, Madhia / Kuribrong River / Mona Falls | |
| Mahdia, Madhia / Kuribrong River / Mona Falls |
| Postal Codes in Potaro - Siparuni | |
|---|---|
| Unorganized | Paramakatoi |
| Monkey Mountain | Maripari River |
| Madhia / Kuribrong River / Mona Falls | Kurukabaru |
| Kopanang / Waipa / Kenepai | Kaibarupai |
| Chenapau River | |