Holsworthy is a small English market community and civil church in the city government district of Torridge, Devon. The county town of Exeter is 36.4 miles (58.6 kilometres) to the east. The River Deer, a tributary of the River Tamar, forms the western limit of the parish, which includes the village of Brandis Corner. According to the 2011 census the population of Holsworthy was 2,641. Holsworthy remains in the East of the Torridge district of Devon. Neighbouring churches are, to the West, Pyworthy, and also Holsworthy Hamlets in various other directions. Holsworthy is 189.5 miles (305.0 kilometres) WSW of London and also 36.4 miles (58.6 km) WNW of the county town of Exeter. The community gets on the junction of the A388 and also A3072 roads. The community centre is about 140 metres (460 ft) over sea level and the acme in the church has an altitude of 144 metres (472 feet). The river Deer, a tributary of the river Tamar, forms the western border of the church. The bedrock geology of the parish is completely of Bude Formation. This kind of Sedimentary bedrock was developed in the Carboniferous duration. Every one of the church is of Bude Formation (sandstone) with the exception of a strip of Bude Development (mudstone and siltstone), concerning 1,600 feet (490 m) broad, across the extreme north of the parish. The Bude Development develops part of the Holsworthy Group.