| Place | Post Code |
|---|---|
| Amriswil, Amriswil | 8580 |
| Biessenhofen, Amriswil | 8580 |
| Brüschwil, Amriswil | 8580 |
| Hagenwil bei Amriswil, Amriswil | 8580 |
| Hatswil, Amriswil | 8580 |
| Hemmerswil, Amriswil | 8580 |
| Mühlebach bei Amriswil, Amriswil | 8580 |
| Niederaach, Amriswil | 8587 |
| Oberaach, Amriswil | 8587 |
| Räuchlisberg, Amriswil | 8580 |
| Schocherswil, Amriswil | 8581 |