Postal codes in Oi-machi, Ashigarakami-gun, Kanagawa
神奈川県足柄上郡大井町 — 11 postal codes. General code: 258-0000. Local government code 14362.
Address example
1-2-3 Akada, Oi-machi, Ashigarakami-gun, Kanagawa 258-0014, Japan
〒258-0014 神奈川県足柄上郡大井町赤田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 |
|---|---|
| 258-0000 | (any other address in this municipality) （下に掲載がない場合） Oi-machi, Ashigarakami-gun, Kanagawa 258-0000, Japan |
| 258-0014 | Akada 赤田 Akada, Oi-machi, Ashigarakami-gun, Kanagawa 258-0014, Japan |
| 258-0010 | Oichuo 大井中央 Oichuo, Oi-machi, Ashigarakami-gun, Kanagawa 258-0010, Japan |
| 258-0018 | Kanade 金手 Kanade, Oi-machi, Ashigarakami-gun, Kanagawa 258-0018, Japan |
| 258-0019 | Kaneko 金子 Kaneko, Oi-machi, Ashigarakami-gun, Kanagawa 258-0019, Japan |
| 258-0016 | Kamioi 上大井 Kamioi, Oi-machi, Ashigarakami-gun, Kanagawa 258-0016, Japan |
| 258-0011 | Shinokubo 篠窪 Shinokubo, Oi-machi, Ashigarakami-gun, Kanagawa 258-0011, Japan |
| 258-0013 | Takao 高尾 Takao, Oi-machi, Ashigarakami-gun, Kanagawa 258-0013, Japan |
| 258-0017 | Nishioi 西大井 Nishioi, Oi-machi, Ashigarakami-gun, Kanagawa 258-0017, Japan |
| 258-0012 | Yanagi 柳 Yanagi, Oi-machi, Ashigarakami-gun, Kanagawa 258-0012, Japan |
| 258-0015 | Yamada 山田 Yamada, Oi-machi, Ashigarakami-gun, Kanagawa 258-0015, 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.