Postal codes in Otaki-mura, Kiso-gun, Nagano
長野県木曽郡王滝村 — 1 postal code. General code: 397-0201. Local government code 20429.
| Postal code | Town / English address |
|---|---|
| 397-0201 | (entire municipality) （全域） Otaki-mura, Kiso-gun, Nagano 397-0201, Japan |
Source: Japan Post postal code data (UTF-8 edition, updated Aug 31, 2026) and romanized edition (KEN_ALL_ROME, June 2025). Japan Post does not claim copyright on postal code data and allows free redistribution. Romaji follows Japan Post (long vowels are not marked). * = romanized by this site from the kana reading because the town is not yet in the romanized edition.