| Localité | Type | Pays | Classe |
|---|---|---|---|
| Bucheggberg | district | 
|
3 |
| Dorneck | district |
|
3 |
| Gäu | district |
|
3 |
| Gösgen | district |
|
3 |
| Lebern | district |
|
3 |
| Olten | district |
|
3 |
| Solothurn | commune |
|
3 |
| Thal | district |
|
3 |
| Thierstein | district |
|
3 |
| Wasseramt | district |
|
3 |