 It is included within the Tees Valley area for both cultural and regional government administration.It is made up of 20 council wards, sixteen within the town of Darlington itself, which are also covered by the Darlington parliamentary constituency and four rural wards of Heighington & Coniscliffe, Hurworth, Middleton St George and Sadberge & Whessoe (part of the Sedgefield parliamentary constituency.As well as Darlington itself the borough includes the surrounding villages of