Districts under Postcode Area: DL / Darlington
- Postcode Area: DL / Darlington
Postcodes in DL / Darlington
Post Town (Postcode District)
- Darlington (DL1)
- Darlington (DL2)
- Richmond (DL11)
- Darlington (DL3)
- Shildon (DL4)
- Newton Aycliffe (DL5)
- Northallerton (DL6)
- Bedale (DL7)
- Hawes (DL8)
- Catterick Garrison (DL9)
- Richmond (DL10)
- Barnard Castle (DL12)
- Bishop Auckland (DL13)
- Crook (DL14)
- Crook (DL15)
- Spennymoor (DL16)
- Ferryhill (DL17)
- Darlington (DL98)