Sectors in DL12
| Sector | Main place | Postcodes |
|---|---|---|
| DL12 0 | Middleton-in-Teesdale | 220 |
| DL12 2 | Barnard Castle | 1 |
| DL12 8 | Barnard Castle | 272 |
| DL12 9 | Cotherstone | 233 |
Places covered by DL12
- Barnard Castle County Durham · 198
- Middleton-in-Teesdale County Durham · 47
- Cotherstone County Durham · 43
- Startforth County Durham · 39
- Mickleton County Durham · 30
- Bowes County Durham · 22
- Eggleston County Durham · 21
- Romaldkirk County Durham · 11
- Whorlton County Durham · 10
- Stainton Grove County Durham · 8
- Holwick County Durham · 6
- Lendings County Durham · 6
- Lartington County Durham · 5
- Newbiggin County Durham · 5
- Stainton County Durham · 5
- Boldron County Durham · 4
- Dent Bank County Durham · 3
- Forest-in-Teesdale County Durham · 3
- Gilmonby County Durham · 3
- Greta Bridge County Durham · 3
- High Dyke County Durham · 3
- Langdon Beck County Durham · 3
- Thorpe County Durham · 3
- Briscoe County Durham · 2
- Kinninvie County Durham · 2
- Thwaite County Durham · 2
- Aukside County Durham · 1
- Bowbank County Durham · 1
- Brignall County Durham · 1
- Egglesburn County Durham · 1
- Grassholme County Durham · 1
- Hunderthwaite County Durham · 1
- Hury County Durham · 1
- Kelton County Durham · 1
- Laithkirk County Durham · 1
- Lonton County Durham · 1
- Middle Side County Durham · 1
- Scargill County Durham · 1
- Snaisgill County Durham · 1
- Thringarth County Durham · 1
- Westwick County Durham · 1
- Wycliffe County Durham · 1