| Locality | Postal Code |
|---|---|
| Postal/ZIP Codes in Ekiminami (小林市) | 886-0009 |
| Postal/ZIP Codes in Higashikata (小林市) | 886-0101, 886-0001 |
| Postal/ZIP Codes in Hommachi (小林市) | 886-0008 |
| Postal/ZIP Codes in Hosono (小林市) | 886-0004 |
| Postal/ZIP Codes in Kitanishikata (小林市) | 886-0006 |
| Postal/ZIP Codes in Magata (小林市) | 886-0007 |
| Postal/ZIP Codes in Minaminishikata (小林市) | 886-0005 |
| Postal/ZIP Codes in Nojiricho Higashifumoto (小林市) | 886-0212 |
| Postal/ZIP Codes in Nojiricho Kamiya (小林市) | 886-0211 |
| Postal/ZIP Codes in Nojiricho Mikanoyama (小林市) | 886-0213 |
| Postal/ZIP Codes in Others (小林市) | 886-0000 |
| Postal/ZIP Codes in Suki Nakahara (小林市) | 886-0111 |
| Postal/ZIP Codes in Suki Nasaki (小林市) | 886-0114 |
| Postal/ZIP Codes in Suki Shimoda (小林市) | 886-0112 |
| Postal/ZIP Codes in Suki Toridamachi (小林市) | 886-0113 |
| Postal/ZIP Codes in Suki Uchiyama (小林市) | 886-0115 |
| Postal/ZIP Codes in Tsuruzako (小林市) | 886-0002 |
| Postal/ZIP Codes in Tsutsumi (小林市) | 886-0003 |