| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Fujinodai, Chiba (藤の台) | 289-0217 |
| Postal/ZIP Codes in Ima, Chiba (今) | 289-0205 |
| Postal/ZIP Codes in Jusammado, Chiba (十三間戸) | 289-0225 |
| Postal/ZIP Codes in Kenari, Chiba (毛成) | 289-0214 |
| Postal/ZIP Codes in Kohara, Chiba (古原) | 289-0215 |
| Postal/ZIP Codes in Komatsu, Chiba (小松) | 289-0223 |
| Postal/ZIP Codes in Kori, Chiba (郡) | 289-0202 |
| Postal/ZIP Codes in Koya, Chiba (高谷) | 289-0201 |
| Postal/ZIP Codes in Kozakihonshuku, Chiba (神崎本宿) | 289-0221 |
| Postal/ZIP Codes in Kozakishinshuku, Chiba (神崎神宿) | 289-0226 |
| Postal/ZIP Codes in Matsuzaki, Chiba (松崎) | 289-0224 |
| Postal/ZIP Codes in Namiki, Chiba (並木) | 289-0222 |
| Postal/ZIP Codes in Onuki, Chiba (大貫) | 289-0203 |
| Postal/ZIP Codes in Others, Chiba (その他) | 289-0100 |
| Postal/ZIP Codes in Shikinoka, Chiba (四季の丘) | 289-0204 |
| Postal/ZIP Codes in Shin, Chiba (新) | 289-0213 |
| Postal/ZIP Codes in Tachino, Chiba (立野) | 289-0211 |
| Postal/ZIP Codes in Takeda, Chiba (武田) | 289-0212 |
| Postal/ZIP Codes in Uebo, Chiba (植房) | 289-0216 |
| Postal Codes in Katori | |
|---|---|
| Postal/ZIP Codes in Kozaki (神崎町) | |
| Postal/ZIP Codes in Tako (多古町) | |
| Postal/ZIP Codes in Tonosho (東庄町) | |