DH3 spans the counties of Durham and Tyne & Wear. It contains the town of Chester-le-Street, as well as Birtley, Great Lumley, Barley Mow, Bournmoor, and Portobello. DH3 is 11km north of the city of Durham. DH3 is a postcode district, also known as an outcode or outbound code.
The below map shows where DH3 is, and the boundary of the DH3 postcode district:
Postal Boundaries © GEOLYTIX copyright and database right 2012
DH3 lies within the counties of Durham and Tyne & Wear. The below table and chart shows the split by area:
| County | % Area |
|---|---|
| Durham | 78% |
| Tyne & Wear | 22% |
| Chester-le-Street | Town |
| Birtley | Settlement |
| Great Lumley | Village |
| Barley Mow | Suburb |
| Bournmoor | Village |
| Portobello | Suburb |
| North Side | Suburb |
| Castle Dene | Hamlet |
| Bridge End | Settlement |
| Canada | Suburb |
Position of DH3 relative to nearby towns. Distance is measured from the centre of DH3 to the centre of the town.
Position of DH3 relative to nearby cities. Distance is measured from the centre of DH3 to the centre of the city.