Gemeinden im Bezirk Wasseramt
| Gemeinde | PLZ | Einwohner |
|---|---|---|
| Aeschi (SO) | 4556 +1 | 1'328 |
| Biberist | 4562 +3 | 9'545 |
| Bolken | 4556 | 577 |
| Deitingen | 4543 +1 | 2'338 |
| Derendingen | 4552 +1 | 7'133 |
| Drei Höfe | 4558 | 732 |
| Etziken | 4554 | 1'069 |
| Gerlafingen | 4563 | 5'859 |
| Horriwil | 4557 | 943 |
| Hüniken | 4554 | 161 |
| Kriegstetten | 4566 +1 | 3'181 |
| Lohn-Ammannsegg | 4573 | 2'947 |
| Luterbach | 4542 +1 | 3'724 |
| Obergerlafingen | 4564 +1 | 1'266 |
| Recherswil | 4565 | 2'202 |
| Subingen | 4553 | 3'299 |
| Zuchwil | 4528 +1 | 9'616 |