Niua Fo'ou Postal Codes: No Official Code | Ongo Niua
According to the Universal Postal Union (UPU), there is no official Postal Codes for Niua Fo'ou, as Tonga does not use a national system. Use N/A or 00000 to complete shipping forms for Niua Fo'ou, Ongo Niua.
Postal Codes for Places in Niua Fo'ou
Showing 8 places in Niua Fo'ou. Last verified with official records on May 2, 2026.
| 'Esia | |
| Fata'ulua | |
| Kolofo'ou | |
| Mata'aho | |
| Mu'a | |
| Petani | |
| Sapa'ata | |
| Tongamama'o |
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Sample Address Format for Niua Fo'ou
[Sender Street Address]
[City, ZIP]
[Country]
Street Address / PO Box
Niua Fo'ou, Ongo Niua, 00000
TONGA
Niua Fo'ou on the Map
The map above highlights the geographic boundaries of the Niua Fo'ou districts in Tonga.
Niua Fo'ou Quick Facts
| Country | Tonga (TO) |
|---|---|
| Administrative Path | Tonga → Ongo Niua |
| Postal Code | |
| Divisions | Ongo Niua |
| ISO Codes | TO / TON / 776 |
| Top-level domain (ccTLD) | .to |
| Coordinates | -15.606355, -175.63552 |
| Places | 8 |
What to Know About Niua Fo'ou
Key Facts
Niua Fo'ou is an island and district within the Ongo Niua division of the Kingdom of Tonga. Located in the northernmost part of the Tongan archipelago, Niua Fo'ou is famously known as 'Tin Can Island' due to its unique mail delivery system where letters were historically sealed in biscuit tins and thrown overboard to swimmers from passing ships. This volcanic island covers an area of approximately 15 square kilometers and has a population of around 500 people. The island features a large volcanic crater lake, Vai Lahi, which occupies much of the island's interior and is one of the largest freshwater lakes in the South Pacific. Niua Fo'ou is divided into several small villages that circle the island's coastline, with the main settlement being 'Esia. The island's rugged terrain and active volcanic nature make it both geographically significant and challenging for habitation. For those seeking postal code information for the villages and communities of Niua Fo'ou, detailed addressing data is available for this remote but historically important Tongan district.