Sectors in SY3
| Sector | Main place | Postcodes |
|---|---|---|
| SY3 0 | Bayston Hill | 174 |
| SY3 5 | Shrewsbury | 151 |
| SY3 6 | Shrewsbury | 56 |
| SY3 7 | Shrewsbury | 227 |
| SY3 8 | Shrewsbury | 302 |
| SY3 9 | Shrewsbury | 203 |
Places covered by SY3
- Shrewsbury Shropshire · 902
- Bayston Hill Shropshire · 152
- Bicton Shropshire · 18
- Lythbank Shropshire · 8
- Calcott Shropshire · 4
- Pulley Shropshire · 4
- Chatford Shropshire · 1
- Great Lyth Shropshire · 1
- Little Lyth Shropshire · 1