Postal codes in Ichinomiya-machi, Chosei-gun, Chiba
千葉県長生郡長生村 — 24 postal codes. General code: 299-4300. Local government code 12423.
Address example
1-2-3 Iriyamazu, Ichinomiya-machi, Chosei-gun, Chiba 299-4321, Japan
〒299-4321 千葉県長生郡長生村入山津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 |
| 299-4321 | Iriyamazu 入山津 Iriyamazu, Ichinomiya-machi, Chosei-gun, Chiba 299-4321, Japan |
| 299-4336 | Iwanuma 岩沼 Iwanuma, Ichinomiya-machi, Chosei-gun, Chiba 299-4336, Japan |
| 299-4343 | Iwanumatobichi 岩沼飛地 Iwanumatobichi, Ichinomiya-machi, Chosei-gun, Chiba 299-4343, Japan |
| 299-4322 | Odoroki 驚 Odoroki, Ichinomiya-machi, Chosei-gun, Chiba 299-4322, Japan |
| 299-4332 | Kaneda 金田 Kaneda, Ichinomiya-machi, Chosei-gun, Chiba 299-4332, Japan |
| 299-4337 | Kitamiyoguchi 北水口 Kitamiyoguchi, Ichinomiya-machi, Chosei-gun, Chiba 299-4337, Japan |
| 299-4347 | Koizumi 小泉 Koizumi, Ichinomiya-machi, Chosei-gun, Chiba 299-4347, Japan |
| 299-4344 | Sone 曽根 Sone, Ichinomiya-machi, Chosei-gun, Chiba 299-4344, Japan |
| 299-4346 | Nakanogo 中之郷 Nakanogo, Ichinomiya-machi, Chosei-gun, Chiba 299-4346, Japan |
| 299-4333 | Nanaido 七井土 Nanaido, Ichinomiya-machi, Chosei-gun, Chiba 299-4333, Japan |
| 299-4331 | Nobutomo 信友 Nobutomo, Ichinomiya-machi, Chosei-gun, Chiba 299-4331, Japan |
| 299-4327 | Hitotsumatsu 一松 Hitotsumatsu, Ichinomiya-machi, Chosei-gun, Chiba 299-4327, Japan |
| 299-4328 | Hitotsumatsuko 一松甲 Hitotsumatsuko, Ichinomiya-machi, Chosei-gun, Chiba 299-4328, Japan |
| 299-4326 | Hitotsumatsuotsu 一松乙 Hitotsumatsuotsu, Ichinomiya-machi, Chosei-gun, Chiba 299-4326, Japan |
| 299-4325 | Hitotsumatsuhei 一松丙 Hitotsumatsuhei, Ichinomiya-machi, Chosei-gun, Chiba 299-4325, Japan |
| 299-4324 | Hitotsumatsutei 一松丁 Hitotsumatsutei, Ichinomiya-machi, Chosei-gun, Chiba 299-4324, Japan |
| 299-4323 | Hitotsumatsubo 一松戊 Hitotsumatsubo, Ichinomiya-machi, Chosei-gun, Chiba 299-4323, Japan |
| 299-4342 | Hitotsumatsutobichiko 一松飛地甲 Hitotsumatsutobichiko, Ichinomiya-machi, Chosei-gun, Chiba 299-4342, Japan |
| 299-4345 | Hongo 本郷 Hongo, Ichinomiya-machi, Chosei-gun, Chiba 299-4345, Japan |
| 299-4341 | Miyanari 宮成 Miyanari, Ichinomiya-machi, Chosei-gun, Chiba 299-4341, Japan |
| 299-4335 | Miyoguchi 水口 Miyoguchi, Ichinomiya-machi, Chosei-gun, Chiba 299-4335, Japan |
| 299-4338 | Mutsunotobichi 六ツ野飛地 Mutsunotobichi, Ichinomiya-machi, Chosei-gun, Chiba 299-4338, Japan |
| 299-4334 | Yabutsuka 薮塚 Yabutsuka, Ichinomiya-machi, Chosei-gun, Chiba 299-4334, 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.