Sectors in SG6
| Sector | Main place | Postcodes |
|---|---|---|
| SG6 1 | Letchworth | 217 |
| SG6 2 | Letchworth | 232 |
| SG6 3 | Letchworth | 195 |
| SG6 4 | Letchworth | 268 |
| SG6 9 | Letchworth | 66 |
Places covered by SG6
- Letchworth North Hertfordshire · 953
- Baldock North Hertfordshire · 9
- Stotfold Central Bedfordshire · 1