Postal codes in Shiroi-shi, Chiba
千葉県白井市 — 30 postal codes. General code: 270-1400. Local government code 12232.
Address example
1-2-3 Ikenokami, Shiroi-shi, Chiba 270-1425, Japan
〒270-1425 千葉県白井市池の上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 |
|---|---|
| 270-1400 | (any other address in this municipality) （下に掲載がない場合） Shiroi-shi, Chiba 270-1400, Japan |
| 270-1425 | Ikenokami 池の上 Ikenokami, Shiroi-shi, Chiba 270-1425, Japan |
| 270-1401 | Imai 今井 Imai, Shiroi-shi, Chiba 270-1401, Japan |
| 270-1434 | Oyamaguchi 大山口 Oyamaguchi, Shiroi-shi, Chiba 270-1434, Japan |
| 270-1404 | Oritate 折立 Oritate, Shiroi-shi, Chiba 270-1404, Japan |
| 270-1403 | Kawarago 河原子 Kawarago, Shiroi-shi, Chiba 270-1403, Japan |
| 270-1437 | Ki 木 Ki, Shiroi-shi, Chiba 270-1437, Japan |
| 270-1415 | Kiyodo 清戸 Kiyodo, Shiroi-shi, Chiba 270-1415, Japan |
| 270-1433 | Keyakidai けやき台 Keyakidai, Shiroi-shi, Chiba 270-1433, Japan |
| 270-1412 | Sakuradai 桜台 Sakuradai, Shiroi-shi, Chiba 270-1412, Japan |
| 270-1426 | Sasazuka 笹塚 Sasazuka, Shiroi-shi, Chiba 270-1426, Japan |
| 270-1416 | Shishiba 神々廻 Shishiba, Shiroi-shi, Chiba 270-1416, Japan |
| 270-1435 | Shimizuguchi 清水口 Shimizuguchi, Shiroi-shi, Chiba 270-1435, Japan |
| 270-1421 | Shiroi 白井 Shiroi, Shiroi-shi, Chiba 270-1421, Japan |
| 270-1439 | Daimatsu 大松 Daimatsu, Shiroi-shi, Chiba 270-1439, Japan |
| 270-1405 | Tomitsuka 富塚 Tomitsuka, Shiroi-shi, Chiba 270-1405, Japan |
| 270-1411 | Toyoichi 十余一 Toyoichi, Shiroi-shi, Chiba 270-1411, Japan |
| 270-1407 | Nauchi 名内 Nauchi, Shiroi-shi, Chiba 270-1407, Japan |
| 270-1406 | Naka 中 Naka, Shiroi-shi, Chiba 270-1406, Japan |
| 270-1436 | Nanatsugidai 七次台 Nanatsugidai, Shiroi-shi, Chiba 270-1436, Japan |
| 270-1408 | Nishishiroi 西白井 Nishishiroi, Shiroi-shi, Chiba 270-1408, Japan |
| 270-1431 | Ne 根 Ne, Shiroi-shi, Chiba 270-1431, Japan |
| 270-1438 | Noguchi 野口 Noguchi, Shiroi-shi, Chiba 270-1438, Japan |
| 270-1402 | Hiratsuka 平塚 Hiratsuka, Shiroi-shi, Chiba 270-1402, Japan |
| 270-1422 | Fuku 復 Fuku, Shiroi-shi, Chiba 270-1422, Japan |
| 270-1432 | Fuji 冨士 Fuji, Shiroi-shi, Chiba 270-1432, Japan |
| 270-1424 | Horigome 堀込 Horigome, Shiroi-shi, Chiba 270-1424, Japan |
| 270-1423 | Minamiyama 南山 Minamiyama, Shiroi-shi, Chiba 270-1423, Japan |
| 270-1413 | Muzai 武西 Muzai, Shiroi-shi, Chiba 270-1413, Japan |
| 270-1414 | Yata 谷田 Yata, Shiroi-shi, Chiba 270-1414, 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.