Postal codes in Sosa-shi, Chiba
千葉県匝瑳市 — 69 postal codes. General code: 289-2100. Local government code 12235.
Address example
1-2-3 Aguyama, Sosa-shi, Chiba 289-2178, Japan
〒289-2178 千葉県匝瑳市安久山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 |
|---|---|
| 289-2100 | (any other address in this municipality) （下に掲載がない場合） Sosa-shi, Chiba 289-2100, Japan |
| 289-2178 | Aguyama 安久山 Aguyama, Sosa-shi, Chiba 289-2178, Japan |
| 289-2147 | Iigura 飯倉 Iigura, Sosa-shi, Chiba 289-2147, Japan |
| 289-2148 | Iiguradai 飯倉台 Iiguradai, Sosa-shi, Chiba 289-2148, Japan |
| 289-2173 | Iitaka 飯多香 Iitaka, Sosa-shi, Chiba 289-2173, Japan |
| 289-2173 | Iidaka 飯高 Iidaka, Sosa-shi, Chiba 289-2173, Japan |
| 289-2106 | Iizuka 飯塚 Iizuka, Sosa-shi, Chiba 289-2106, Japan |
| 289-3182 | Imaizumi 今泉 Imaizumi, Sosa-shi, Chiba 289-3182, Japan |
| 289-2161 | Iriyamazaki 入山崎 Iriyamazaki, Sosa-shi, Chiba 289-2161, Japan |
| 289-2171 | Uchiyama 内山 Uchiyama, Sosa-shi, Chiba 289-2171, Japan |
| 289-2104 | Oio 生尾 Oio, Sosa-shi, Chiba 289-2104, Japan |
| 289-2151 | Oura 大浦 Oura, Sosa-shi, Chiba 289-2151, Japan |
| 289-2108 | Odera 大寺 Odera, Sosa-shi, Chiba 289-2108, Japan |
| 289-2176 | Ohori 大堀 Ohori, Sosa-shi, Chiba 289-2176, Japan |
| 289-2176 | Ohori 大保里 Ohori, Sosa-shi, Chiba 289-2176, Japan |
| 289-2112 | Ogino 荻野 Ogino, Sosa-shi, Chiba 289-2112, Japan |
| 289-2179 | Odaka 小高 Odaka, Sosa-shi, Chiba 289-2179, Japan |
| 289-2149 | Kaizuka 貝塚 Kaizuka, Sosa-shi, Chiba 289-2149, Japan |
| 289-2175 | Katako 片子 Katako, Sosa-shi, Chiba 289-2175, Japan |
| 289-2175 | Katako 加多古 Katako, Sosa-shi, Chiba 289-2175, Japan |
| 289-2177 | Kanabara 金原 Kanabara, Sosa-shi, Chiba 289-2177, Japan |
| 289-2133 | Kabuzato 蕪里 Kabuzato, Sosa-shi, Chiba 289-2133, Japan |
| 289-2167 | Kamezaki 亀崎 Kamezaki, Sosa-shi, Chiba 289-2167, Japan |
| 289-3184 | Kayada 栢田 Kayada, Sosa-shi, Chiba 289-3184, Japan |
| 289-3186 | Kawabe 川辺 Kawabe, Sosa-shi, Chiba 289-3186, Japan |
| 289-2111 | Kawamukai 川向 Kawamukai, Sosa-shi, Chiba 289-2111, Japan |
| 289-2164 | Kizumi 木積 Kizumi, Sosa-shi, Chiba 289-2164, Japan |
| 289-2174 | Kozaki 公崎 Kozaki, Sosa-shi, Chiba 289-2174, Japan |
| 289-2135 | Koya 高野 Koya, Sosa-shi, Chiba 289-2135, Japan |
| 289-2166 | Shimura 新 Shimura, Sosa-shi, Chiba 289-2166, Japan |
| 289-2114 | Joyanaka 上谷中 Joyanaka, Sosa-shi, Chiba 289-2114, Japan |
| 289-2132 | Taka 高 Taka, Sosa-shi, Chiba 289-2132, Japan |
| 289-2165 | Takubo 田久保 Takubo, Sosa-shi, Chiba 289-2165, Japan |
| 289-2102 | Tsubaki 椿 Tsubaki, Sosa-shi, Chiba 289-2102, Japan |
| 289-2136 | Tokizone 時曽根 Tokizone, Sosa-shi, Chiba 289-2136, Japan |
| 289-2154 | Tomioka 富岡 Tomioka, Sosa-shi, Chiba 289-2154, Japan |
| 289-2156 | Nagaoka 長岡 Nagaoka, Sosa-shi, Chiba 289-2156, Japan |
| 289-2156 | Nagaoka 長丘 Nagaoka, Sosa-shi, Chiba 289-2156, Japan |
| 289-2153 | Nakadai 中台 Nakadai, Sosa-shi, Chiba 289-2153, Japan |
| 289-2123 | Nagaya 長谷 Nagaya, Sosa-shi, Chiba 289-2123, Japan |
| 289-3183 | Niibori 新堀 Niibori, Sosa-shi, Chiba 289-3183, Japan |
| 289-2125 | Nishikozasa 西小笹 Nishikozasa, Sosa-shi, Chiba 289-2125, Japan |
| 289-2172 | Negoya 城下 Negoya, Sosa-shi, Chiba 289-2172, Japan |
| 289-3181 | Node 野手 Node, Sosa-shi, Chiba 289-3181, Japan |
| 289-2124 | Nobuto 登戸 Nobuto, Sosa-shi, Chiba 289-2124, Japan |
| 289-2101 | Harumi 春海 Harumi, Sosa-shi, Chiba 289-2101, Japan |
| 289-2121 | Higashikozasa 東小笹 Higashikozasa, Sosa-shi, Chiba 289-2121, Japan |
| 289-2115 | Higashiya 東谷 Higashiya, Sosa-shi, Chiba 289-2115, Japan |
| 289-2168 | Hisakata 久方 Hisakata, Sosa-shi, Chiba 289-2168, Japan |
| 289-2113 | Hiragi 平木 Hiragi, Sosa-shi, Chiba 289-2113, Japan |
| 289-3185 | Horikawa 堀川 Horikawa, Sosa-shi, Chiba 289-3185, Japan |
| 289-2157 | Horinochi 堀之内 Horinochi, Sosa-shi, Chiba 289-2157, Japan |
| 289-2152 | Matsuyama 松山 Matsuyama, Sosa-shi, Chiba 289-2152, Japan |
| 289-2131 | Midoridaira みどり平 Midoridaira, Sosa-shi, Chiba 289-2131, Japan |
| 289-2163 | Minamikanzaki 南神崎 Minamikanzaki, Sosa-shi, Chiba 289-2163, Japan |
| 289-2162 | Minamiyamazaki 南山崎 Minamiyamazaki, Sosa-shi, Chiba 289-2162, Japan |
| 289-2103 | Miyamoto 宮本 Miyamoto, Sosa-shi, Chiba 289-2103, Japan |
| 289-2155 | Yappe 八辺 Yappe, Sosa-shi, Chiba 289-2155, Japan |
| 289-2105 | Yamakuwa 山桑 Yamakuwa, Sosa-shi, Chiba 289-2105, Japan |
| 289-2144 | Yokaichiba I 八日市場イ Yokaichiba I, Sosa-shi, Chiba 289-2144, Japan |
| 289-2142 | Yokaichiba Ni 八日市場ニ Yokaichiba Ni, Sosa-shi, Chiba 289-2142, Japan |
| 289-2141 | Yokaichiba Ha 八日市場ハ Yokaichiba Ha, Sosa-shi, Chiba 289-2141, Japan |
| 289-2146 | Yokaichiba Ho 八日市場ホ Yokaichiba Ho, Sosa-shi, Chiba 289-2146, Japan |
| 289-2143 | Yokaichiba Ro 八日市場ロ Yokaichiba Ro, Sosa-shi, Chiba 289-2143, Japan |
| 289-2134 | Yokosuka 横須賀 Yokosuka, Sosa-shi, Chiba 289-2134, Japan |
| 289-2122 | Yoshizaki 吉崎 Yoshizaki, Sosa-shi, Chiba 289-2122, Japan |
| 289-2169 | Yoshida 吉田 Yoshida, Sosa-shi, Chiba 289-2169, Japan |
| 289-2107 | Yonemochi 米持 Yonemochi, Sosa-shi, Chiba 289-2107, Japan |
| 289-2145 | Wakashiocho 若潮町 Wakashiocho, Sosa-shi, Chiba 289-2145, 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.