Wellington is a market town in Somerset, England. It is situated 7 miles south west of Taunton, near the border with Devon, which runs along the Blackdown Hills to the south of the town. The town had a population of 16,669, which includes the residents of the parish of Wellington Without, and the villages of Tone and Tonedale. Known as Weolingtun in the Anglo-Saxon period, its name had changed to Walintone by the time of the Domesday Book of 1086.