# SG1

7 sectors, 1,275 postcodes

- **Part of:** [SG](https://openpostcodes.uk/SG)
- **Local authorities:** Stevenage, North Hertfordshire

## Sectors

| Sector | Postcodes | Local authority |
|---|---|---|
| [SG1 1](https://openpostcodes.uk/SG1%201) | 219 | Stevenage |
| [SG1 2](https://openpostcodes.uk/SG1%202) | 217 | Stevenage |
| [SG1 3](https://openpostcodes.uk/SG1%203) | 218 | Stevenage |
| [SG1 4](https://openpostcodes.uk/SG1%204) | 289 | Stevenage |
| [SG1 5](https://openpostcodes.uk/SG1%205) | 215 | Stevenage |
| [SG1 6](https://openpostcodes.uk/SG1%206) | 79 | North Hertfordshire |
| [SG1 9](https://openpostcodes.uk/SG1%209) | 38 | Stevenage |