Calstock is a civil parish and a large village in south east Cornwall, England, United Kingdom, on the boundary with Devon. The town is located on the River Tamar 6 miles (9.7 kilometres) southern west of Tavistock as well as 10 miles (16 km) north of Plymouth. The church had a population of 6,095 in the 2001 census. This had actually boosted to 6,431 at the 2011 census. The parish includes 5,760 acres (23.3 km2) of land, 70 acres (0.28 km2) of water, and also 44 acres (0.18 km2) of the tidal Tamar. Ashburton Hotel as well as Danescombe Quay forgeting the River Tamar Along with Calstock, other settlements in the church consist of Albaston, Chilsworthy, Gunnislake, Harrowbarrow, Latchley, Metherell, Coxpark, Dimson, Drakewalls, Norris Green, Rising Sun and St Ann's Chapel. Calstock town is within the Tamar Valley AONB, is ignored by Cotehele residence and gardens, as well as rests on the beautiful Tamar Valley railway. Calstock railway station opened up on 2 March 1908. The village is twinned with Saint-Thuriau in Brittany, France.