All postcodes in DH3 9
| Postcode | Place | Type |
|---|---|---|
| DH3 9BA | Chester-le-Street | large user |
| DH3 9FH | Chester-le-Street | large user |
| DH3 9FL | Chester-le-Street | large user |
| DH3 9FT | Chester-le-Street | large user |
| DH3 9FW | Chester-le-Street | large user |
| DH3 9GF | Chester-le-Street | large user |
| DH3 9GH | Chester-le-Street | large user |
| DH3 9GJ | Chester-le-Street | large user |