Districts in the HS area
| District | Main place | Local authority | Sectors | Postcodes |
|---|---|---|---|---|
| HS1 | Stornoway | Na h-Eileanan Siar | 2 | 266 |
| HS2 | Stornoway | Na h-Eileanan Siar | 2 | 365 |
| HS3 | Tarbert | Na h-Eileanan Siar | 1 | 76 |
| HS4 | Scalpay | Na h-Eileanan Siar | 1 | 9 |
| HS5 | An t-Ob | Na h-Eileanan Siar | 1 | 14 |
| HS6 | Paible | Na h-Eileanan Siar | 1 | 80 |
| HS7 | Balivanich | Na h-Eileanan Siar | 1 | 45 |
| HS8 | Eochar | Na h-Eileanan Siar | 1 | 76 |
| HS9 | Castlebay | Na h-Eileanan Siar | 1 | 50 |