1885-1918: The Municipal Boroughs of Barnstaple and Bideford, and the Sessional Divisions of Bideford and Braunton.
1918-1950: The Municipal Boroughs of Barnstaple and Bideford, the Urban Districts of Ilfracombe, Lynton, and Northam, and the Rural Districts of Barnstaple and Bideford (including Lundy Island).