Postal codes in Mutsuzawa-machi, Chosei-gun, Chiba
千葉県長生郡睦沢町 — 17 postal codes. General code: 299-4400. Local government code 12422.
Address example
1-2-3 Iwai, Mutsuzawa-machi, Chosei-gun, Chiba 299-4412, Japan
〒299-4412 千葉県長生郡睦沢町岩井1-2-3
Replace 1-2-3 with the chome-ban-go (block and lot) number, and add the building and room number before it.
| Postal code | Town / English address |
|---|---|
| 299-4400 | (any other address in this municipality) （下に掲載がない場合） Mutsuzawa-machi, Chosei-gun, Chiba 299-4400, Japan |
| 299-4412 | Iwai 岩井 Iwai, Mutsuzawa-machi, Chosei-gun, Chiba 299-4412, Japan |
| 299-4423 | Ogami 大上 Ogami, Mutsuzawa-machi, Chosei-gun, Chiba 299-4423, Japan |
| 299-4405 | Oyagi 大谷木 Oyagi, Mutsuzawa-machi, Chosei-gun, Chiba 299-4405, Japan |
| 299-4403 | Kamiichiba 上市場 Kamiichiba, Mutsuzawa-machi, Chosei-gun, Chiba 299-4403, Japan |
| 299-4413 | Kaminogo 上之郷 Kaminogo, Mutsuzawa-machi, Chosei-gun, Chiba 299-4413, Japan |
| 299-4402 | Kawashima 川島 Kawashima, Mutsuzawa-machi, Chosei-gun, Chiba 299-4402, Japan |
| 299-4411 | Kawasugaya 河須ケ谷 Kawasugaya, Mutsuzawa-machi, Chosei-gun, Chiba 299-4411, Japan |
| 299-4404 | Kitayamada 北山田 Kitayamada, Mutsuzawa-machi, Chosei-gun, Chiba 299-4404, Japan |
| 299-4406 | Kitayamadaterasakishinden 北山田寺崎新田 Kitayamadaterasakishinden, Mutsuzawa-machi, Chosei-gun, Chiba 299-4406, Japan |
| 299-4415 | Kodaki 小滝 Kodaki, Mutsuzawa-machi, Chosei-gun, Chiba 299-4415, Japan |
| 299-4425 | Sanuki 佐貫 Sanuki, Mutsuzawa-machi, Chosei-gun, Chiba 299-4425, Japan |
| 299-4414 | Shimonogo 下之郷 Shimonogo, Mutsuzawa-machi, Chosei-gun, Chiba 299-4414, Japan |
| 299-4421 | Chorakuji 長楽寺 Chorakuji, Mutsuzawa-machi, Chosei-gun, Chiba 299-4421, Japan |
| 299-4401 | Terasaki 寺崎 Terasaki, Mutsuzawa-machi, Chosei-gun, Chiba 299-4401, Japan |
| 299-4424 | Myorakuji 妙楽寺 Myorakuji, Mutsuzawa-machi, Chosei-gun, Chiba 299-4424, Japan |
| 299-4422 | Mori 森 Mori, Mutsuzawa-machi, Chosei-gun, Chiba 299-4422, 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.