Kelbrook and Sough is a civil parish in the Pendle district of Lancashire, England. It has a population of 1,008, and contains the village of Kelbrook and neighboring hamlet of Sough.The parish adjoins the Pendle parishes of Laneshaw Bridge, Foulridge, Salterforth and Earby and West Yorkshire.Prior to 1974 the area was part of the West Riding of Yorkshire.According to the United Kingdom Census 2011, the parish has a population of 1,008, a decrease from 1,026 in the 2001 census.