| Locality | Postal Code |
|---|---|
| Anyoji (栗東市) | 520-3015 |
| Arahari (栗東市) | 520-3003 |
| Bobukuro (栗東市) | 520-3023 |
| Deba (栗東市) | 520-3041 |
| Hachiya (栗東市) | 520-3021 |
| Hayashi (栗東市) | 520-3043 |
| Heso (栗東市) | 520-3031 |
| Higashisaka (栗東市) | 520-3001 |
| Inoe (栗東市) | 520-3006 |
| Iseochi (栗東市) | 520-3044 |
| Juri (栗東市) | 520-3036 |
| Kamimagari (栗東市) | 520-3022 |
| Kamitoyama (栗東市) | 520-3004 |
| Kanonji (栗東市) | 520-3002 |
| Karihara (栗東市) | 520-3032 |
| Kasagawa (栗東市) | 520-3033 |
| Kawazura (栗東市) | 520-3014 |
| Kitanakakoji (栗東市) | 520-3037 |
| Kobirai (栗東市) | 520-3034 |
| Megawa (栗東市) | 520-3013 |
| Misono (栗東市) | 520-3005 |
| Nakazawa (栗東市) | 520-3025 |
| Nojiri (栗東市) | 520-3027 |
| Ogaki (栗東市) | 520-3024 |
| Ohashi (栗東市) | 520-3046 |
| Oka (栗東市) | 520-3012 |