| Post Office | Yreka |
| Division | Siskiyou |
| Pincode | 96097 |
| Post Office | Weed |
| Division | Siskiyou |
| Pincode | 96094 |
| Post Office | Mount Shasta |
| Division | Siskiyou |
| Pincode | 96067 |
| Post Office | Montague |
| Division | Siskiyou |
| Pincode | 96064 |
| Post Office | Fort Jones |
| Division | Siskiyou |
| Pincode | 96032 |
| Post Office | Etna |
| Division | Siskiyou |
| Pincode | 96027 |
| Post Office | Dunsmuir |
| Division | Siskiyou |
| Pincode | 96025 |
| Post Office | Dorris |
| Division | Siskiyou |
| Pincode | 96023 |
| Post Office | Hornbrook |
| Division | Siskiyou |
| Pincode | 96044 |
21 City in Siskiyou | List of Zip Codes Location In California and Your selected County Siskiyou