Postal codes in Yachimata-shi, Chiba
千葉県八街市 — 34 postal codes. General code: 289-1100. Local government code 12230.
Address example
1-2-3 Asahi, Yachimata-shi, Chiba 289-1101, Japan
〒289-1101 千葉県八街市朝日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 |
|---|---|
| 289-1100 | (any other address in this municipality) （下に掲載がない場合） Yachimata-shi, Chiba 289-1100, Japan |
| 289-1101 | Asahi 朝日 Asahi, Yachimata-shi, Chiba 289-1101, Japan |
| 289-1121 | Isago 砂 Isago, Yachimata-shi, Chiba 289-1121, Japan |
| 289-1105 | Izumidai 泉台 Izumidai, Yachimata-shi, Chiba 289-1105, Japan |
| 289-1106 | Enokido 榎戸 Enokido, Yachimata-shi, Chiba 289-1106, Japan |
| 289-1111 | Ogi 大木 Ogi, Yachimata-shi, Chiba 289-1111, Japan |
| 289-1142 | Oseki 大関 Oseki, Yachimata-shi, Chiba 289-1142, Japan |
| 289-1134 | Oyaru 大谷流 Oyaru, Yachimata-shi, Chiba 289-1134, Japan |
| 289-1137 | Okada 岡田 Okada, Yachimata-shi, Chiba 289-1137, Japan |
| 289-1126 | Oki 沖 Oki, Yachimata-shi, Chiba 289-1126, Japan |
| 289-1102 | Okiwatashi 沖渡 Okiwatashi, Yachimata-shi, Chiba 289-1102, Japan |
| 289-1125 | Kamiisago 上砂 Kamiisago, Yachimata-shi, Chiba 289-1125, Japan |
| 289-1108 | Gammaru 雁丸 Gammaru, Yachimata-shi, Chiba 289-1108, Japan |
| 289-1112 | Kibara 木原 Kibara, Yachimata-shi, Chiba 289-1112, Japan |
| 289-1131 | Kibogaoka 希望ケ丘 Kibogaoka, Yachimata-shi, Chiba 289-1131, Japan |
| 289-1135 | Koyaru 小谷流 Koyaru, Yachimata-shi, Chiba 289-1135, Japan |
| 289-1122 | Shimoku 四木 Shimoku, Yachimata-shi, Chiba 289-1122, Japan |
| 289-1132 | Seta 勢田 Seta, Yachimata-shi, Chiba 289-1132, Japan |
| 289-1123 | Takidai 滝台 Takidai, Yachimata-shi, Chiba 289-1123, Japan |
| 289-1116 | Chuo 中央 Chuo, Yachimata-shi, Chiba 289-1116, Japan |
| 289-1141 | Toyama 富山 Toyama, Yachimata-shi, Chiba 289-1141, Japan |
| 289-1136 | Negoya 根古谷 Negoya, Yachimata-shi, Chiba 289-1136, Japan |
| 289-1114 | Higashiyoshida 東吉田 Higashiyoshida, Yachimata-shi, Chiba 289-1114, Japan |
| 289-1104 | Hijikai 文違 Hijikai, Yachimata-shi, Chiba 289-1104, Japan |
| 289-1145 | Midoridai みどり台 Midoridai, Yachimata-shi, Chiba 289-1145, Japan |
| 289-1138 | Mochikusa 用草 Mochikusa, Yachimata-shi, Chiba 289-1138, Japan |
| 289-1143 | Yachimatai 八街い Yachimatai, Yachimata-shi, Chiba 289-1143, Japan |
| 289-1144 | Yachimataro 八街ろ Yachimataro, Yachimata-shi, Chiba 289-1144, Japan |
| 289-1107 | Yachimataha 八街は Yachimataha, Yachimata-shi, Chiba 289-1107, Japan |
| 289-1103 | Yachimatani 八街に Yachimatani, Yachimata-shi, Chiba 289-1103, Japan |
| 289-1115 | Yachimataho 八街ほ Yachimataho, Yachimata-shi, Chiba 289-1115, Japan |
| 289-1113 | Yachimatahe 八街へ Yachimatahe, Yachimata-shi, Chiba 289-1113, Japan |
| 289-1124 | Yamadadai 山田台 Yamadadai, Yachimata-shi, Chiba 289-1124, Japan |
| 289-1133 | Yoshikura 吉倉 Yoshikura, Yachimata-shi, Chiba 289-1133, 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.