Postal codes in Ichinomiya-machi, Chosei-gun, Chiba
千葉県長生郡一宮町 — 13 postal codes. General code: 299-4300. Local government code 12421.
Address example
1-2-3 Arachi, Ichinomiya-machi, Chosei-gun, Chiba 299-4314, Japan
〒299-4314 千葉県長生郡一宮町新地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 |
|---|---|
| 299-4300 | (any other address in this municipality) （下に掲載がない場合） Ichinomiya-machi, Chosei-gun, Chiba 299-4300, Japan |
| 299-4314 | Arachi 新地 Arachi, Ichinomiya-machi, Chosei-gun, Chiba 299-4314, Japan |
| 299-4315 | Arachiko 新地甲 Arachiko, Ichinomiya-machi, Chosei-gun, Chiba 299-4315, Japan |
| 299-4316 | Arachihei 新地丙 Arachihei, Ichinomiya-machi, Chosei-gun, Chiba 299-4316, Japan |
| 299-4301 | Ichinomiya 一宮 Ichinomiya, Ichinomiya-machi, Chosei-gun, Chiba 299-4301, Japan |
| 299-4313 | Sendokyu 船頭給 Sendokyu, Ichinomiya-machi, Chosei-gun, Chiba 299-4313, Japan |
| 299-4302 | Tamachi 田町 Tamachi, Ichinomiya-machi, Chosei-gun, Chiba 299-4302, Japan |
| 299-4304 | Tsunada 綱田 Tsunada, Ichinomiya-machi, Chosei-gun, Chiba 299-4304, Japan |
| 299-4303 | Torami 東浪見 Torami, Ichinomiya-machi, Chosei-gun, Chiba 299-4303, Japan |
| 299-4311 | Hakusan 白山 Hakusan, Ichinomiya-machi, Chosei-gun, Chiba 299-4311, Japan |
| 299-4306 | Higashino 東野 Higashino, Ichinomiya-machi, Chosei-gun, Chiba 299-4306, Japan |
| 299-4305 | Honkyu 本給 Honkyu, Ichinomiya-machi, Chosei-gun, Chiba 299-4305, Japan |
| 299-4312 | Miyabara 宮原 Miyabara, Ichinomiya-machi, Chosei-gun, Chiba 299-4312, 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.