29,883
Population
13,571
Households
847
Postcodes
5
Sectors
About SR7
The SR7 postcode district covers Cold Hesledon, Dalton-le-Dale, Dawdon, Deneside, Greenhill, Murton, Northlea, Parkside, Seaham, West Lea in County Durham. It falls under the Seaham post town. The area has a population of approximately 29,883.