St Dominick is situated in the Deanery and Hundred of East. It is bounded on the North by Calstock, on the East by the River Tamar which separates it from the Devon parish of Bere Ferrers, on the South by Pillaton and St Mellion, and on the West by Callington. It is located on the West bank of the River Tamar about 3 miles to the South East of Callington. There are numerous small hamlets and isolated buildings in the area. Besides the Churchtown, the principle villages and hamlets are Cross, Burraton, Etheric (now Bohetheric), Halton Quay, and Ashton.