Sectors in CM23
| Sector | Main place | Postcodes |
|---|---|---|
| CM23 0 | Bishop's Stortford | 45 |
| CM23 1 | Bishop's Stortford | 137 |
| CM23 2 | Bishop's Stortford | 300 |
| CM23 3 | Bishop's Stortford | 265 |
| CM23 4 | Bishop's Stortford | 231 |
| CM23 5 | Bishop's Stortford | 203 |
| CM23 9 | Bishop's Stortford | 19 |
Places covered by CM23
- Bishop's Stortford East Hertfordshire · 1,035
- Manuden Uttlesford · 23
- Birchanger Uttlesford · 15
- Berden Uttlesford · 11
- Spellbrook East Hertfordshire · 7
- Thorley Street East Hertfordshire · 7
- Farnham Uttlesford · 6
- Hazel End Uttlesford · 4
- Little London Uttlesford · 3
- Thorley East Hertfordshire · 3
- Farnham Green Uttlesford · 2
- Level's Green Uttlesford · 2
- Brick House End Uttlesford · 1
- Chatter End Uttlesford · 1
- Maggots End Uttlesford · 1
- Mallows Green Uttlesford · 1
- Mount Pleasant Uttlesford · 1
- Stansted Mountfitchet Uttlesford · 1
- Thorley Wash East Hertfordshire · 1
- Uppend Uttlesford · 1