Postal codes in Sakai-machi, Sashima-gun, Ibaraki
茨城県猿島郡境町 — 28 postal codes. General code: 306-0400. Local government code 08546.
Address example
1-2-3 Ichinoya, Sakai-machi, Sashima-gun, Ibaraki 306-0422, Japan
〒306-0422 茨城県猿島郡境町一ノ谷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 |
|---|---|
| 306-0400 | (any other address in this municipality) （下に掲載がない場合） Sakai-machi, Sashima-gun, Ibaraki 306-0400, Japan |
| 306-0433 | (no town name; lot number follows the municipality) （町域名がなく番地が続く住所） Sakai-machi, Sashima-gun, Ibaraki 306-0433, Japan |
| 306-0422 | Ichinoya 一ノ谷 Ichinoya, Sakai-machi, Sashima-gun, Ibaraki 306-0422, Japan |
| 306-0407 | Inao 稲尾 Inao, Sakai-machi, Sashima-gun, Ibaraki 306-0407, Japan |
| 306-0414 | Uchikado 内門 Uchikado, Sakai-machi, Sashima-gun, Ibaraki 306-0414, Japan |
| 306-0427 | Uramuko 浦向 Uramuko, Sakai-machi, Sashima-gun, Ibaraki 306-0427, Japan |
| 306-0426 | Kaneoka 金岡 Kaneoka, Sakai-machi, Sashima-gun, Ibaraki 306-0426, Japan |
| 306-0434 | Kamikobashi 上小橋 Kamikobashi, Sakai-machi, Sashima-gun, Ibaraki 306-0434, Japan |
| 306-0424 | Kirigasaku 桐ケ作 Kirigasaku, Sakai-machi, Sashima-gun, Ibaraki 306-0424, Japan |
| 306-0412 | Kuriyama 栗山 Kuriyama, Sakai-machi, Sashima-gun, Ibaraki 306-0412, Japan |
| 306-0402 | Saruyama 猿山 Saruyama, Sakai-machi, Sashima-gun, Ibaraki 306-0402, Japan |
| 306-0401 | Shitori 志鳥 Shitori, Sakai-machi, Sashima-gun, Ibaraki 306-0401, Japan |
| 306-0411 | Shimoisagoi 下砂井 Shimoisagoi, Sakai-machi, Sashima-gun, Ibaraki 306-0411, Japan |
| 306-0432 | Shimokobashi 下小橋 Shimokobashi, Sakai-machi, Sashima-gun, Ibaraki 306-0432, Japan |
| 306-0403 | Jaike 蛇池 Jaike, Sakai-machi, Sashima-gun, Ibaraki 306-0403, Japan |
| 306-0421 | Someya 染谷 Someya, Sakai-machi, Sashima-gun, Ibaraki 306-0421, Japan |
| 306-0405 | Tsukazaki 塚崎 Tsukazaki, Sakai-machi, Sashima-gun, Ibaraki 306-0405, Japan |
| 306-0404 | Nagaido 長井戸 Nagaido, Sakai-machi, Sashima-gun, Ibaraki 306-0404, Japan |
| 306-0431 | Nishiizumida 西泉田 Nishiizumida, Sakai-machi, Sashima-gun, Ibaraki 306-0431, Japan |
| 306-0425 | Nittado 新田戸 Nittado, Sakai-machi, Sashima-gun, Ibaraki 306-0425, Japan |
| 306-0416 | Fusegi 伏木 Fusegi, Sakai-machi, Sashima-gun, Ibaraki 306-0416, Japan |
| 306-0408 | Miraidaira みらい平 Miraidaira, Sakai-machi, Sashima-gun, Ibaraki 306-0408, Japan |
| 306-0423 | Modo 百戸 Modo, Sakai-machi, Sashima-gun, Ibaraki 306-0423, Japan |
| 306-0413 | Yamazaki 山崎 Yamazaki, Sakai-machi, Sashima-gun, Ibaraki 306-0413, Japan |
| 306-0435 | Yokodai 陽光台 Yokodai, Sakai-machi, Sashima-gun, Ibaraki 306-0435, Japan |
| 306-0406 | Yokotsuka 横塚 Yokotsuka, Sakai-machi, Sashima-gun, Ibaraki 306-0406, Japan |
| 306-0417 | Wakabayashi 若林 Wakabayashi, Sakai-machi, Sashima-gun, Ibaraki 306-0417, Japan |
| 306-0415 | Wago 大歩 Wago, Sakai-machi, Sashima-gun, Ibaraki 306-0415, 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.